UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Form 10-K

(Mark One)

For the Year ended December 31, 2017

OR

For the transition period from              to             

1-35573
(Commission file number)

TRONOX LIMITED
(ACN 153 348 111)
(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (203) 705-3800

Securities registered pursuant to Section 12(b) of the Act:

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☒ No  o

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act. Yes  o No ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No  o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes ☒ No  o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes  o No ☒

The aggregate market value of the ordinary shares held by non-affiliates of the registrant as of June 30, 2017 was approximately $1,797,488,386.

Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Section 12, 13 or 15(d) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court. Yes ☒ No  o

As of January 31, 2018, the registrant had 92,660,776 shares of Class A ordinary shares and 28,729,280 shares of Class B ordinary shares outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s proxy statement for its 2018 annual general meeting of shareholders are incorporated by reference in this Form 10-K in response to Part III Items 10, 11, 12, 13 and 14.

TRONOX LIMITED
ANNUAL REPORT ON FORM 10-K
FOR THE FISCAL YEAR ENDED DECEMBER 31, 2017
INDEX

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

We have made statements under the captions “Business,” “Risk Factors,” “Management’s Discussion and Analysis of Financial Condition and Results of Operations”, and in other sections of this Form 10-K that are forward-looking statements. Forward-looking statements also can be identified by words such as “future,” “anticipates,” “believes,” “estimates,” “expects,” “intends,” “plans,” “predicts,” “will,” “would,” “could,” “can,” “may,” and similar terms. These forward-looking statements, which are subject to known and unknown risks, uncertainties and assumptions about us, may include projections of our future financial performance based on our growth strategies and anticipated trends in our business. These statements are only predictions based on our current expectations and projections about future events. There are important factors that could cause our actual results, level of activity, performance or achievements to differ materially from the results, level of activity, performance or achievements expressed or implied by the forward-looking statements. In particular, you should consider the numerous risks and uncertainties outlined in “Risk Factors.”

These risks and uncertainties are not exhaustive. Other sections of this Form 10-K may include additional factors, which could adversely impact our business and financial performance. Moreover, we operate in a very competitive and rapidly changing environment. New risks and uncertainties emerge from time to time, and it is not possible for our management to predict all risks and uncertainties, nor can management assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements.

Although we believe the expectations reflected in the forward-looking statements are reasonable, we cannot guarantee future results, level of activity, performance or achievements. Moreover, neither we nor any other person assumes responsibility for the accuracy or completeness of any of these forward-looking statements. You should not rely upon forward-looking statements as predictions of future events. We are under no duty to update any of these forward-looking statements after the date of this Form 10-K to conform our prior statements to actual results or revised expectations and we do not intend to do so.

We are committed to providing timely and accurate information to the investing public, consistent with our legal and regulatory obligations. To that end, we use our website to convey information about our businesses, including the anticipated release of quarterly financial results, quarterly financial and statistical and business-related information. Investors can link to the Tronox Limited website through http://www.tronox.com. Our website and the information contained therein or connected thereto shall not be deemed to be incorporated into this Form 10-K.

PART I

For the purposes of this discussion, references to “we,” “us,” and, “our” refer to Tronox Limited, together with its consolidated subsidiaries (collectively referred to as “Tronox”), when discussing the business following the completion of the Exxaro Transaction, and to Tronox Incorporated, together with its consolidated subsidiaries (collectively referred to as “Tronox Incorporated”), when discussing the business prior to the completion of the Exxaro Transaction.

Item 1.   Business

Tronox is a public limited company registered under the laws of the State of Western Australia. We are a global leader in the mining of titanium bearing mineral sands and the production of titanium dioxide (“TiO₂”) pigment. Our TiO₂ products are critical components of everyday applications such as paint and other coatings, plastics, paper, and other uses. Products we derive from mineral sands include titanium feedstock, zircon, and pig iron. Zircon, a hard, glossy mineral, is used for the manufacture of ceramics, refractories, TV screen glass, and a range of other industrial and chemical products. Pig iron is a metal material used in the steel and metal casting industries to create wrought iron, cast iron, and steel. Titanium feedstock is primarily used to manufacture TiO₂ pigment.

On February 21, 2017, Tronox Limited, The National Titanium Dioxide Company Ltd., a limited company organized under the laws of the Kingdom of Saudi Arabia (“Cristal”), and Cristal Inorganic Chemicals Netherlands Coöperatief W.A., a cooperative organized under the laws of the Netherlands and a wholly owned subsidiary of Cristal (“Seller”), entered into a Transaction Agreement (the “Transaction Agreement”), pursuant to which we agreed to acquire Cristal’s titanium dioxide business for $1.673 billion in cash, subject to a working capital adjustment at closing (the “Cash Consideration”), plus 37,580,000 Class A ordinary shares (“Class A Shares”), par value $0.01 per share, of Tronox Limited (the “Cristal Transaction”). Following the closing of the Cristal Transaction, the Seller will own approximately 24% of the outstanding ordinary shares (including both Class A and Class B) of Tronox Limited. On March 1, 2018, Tronox, Cristal and Seller entered into an Amendment to the Transaction Agreement (the “Amendment”) that extends the termination date under the Transaction Agreement to June 30, 2018, with automatic 3-month extensions to March 31, 2019, if necessary based on the status of outstanding regulatory approvals.

In 2012, our Class B ordinary shares (“Class B Shares”) were issued to Exxaro Resources Limited (“Exxaro”) and one of its subsidiaries in consideration for 74% of Exxaro’s South African mineral sands business (the “Exxaro Transaction”). On March 8, 2017, Exxaro announced its intention to begin pursuing a path to monetize its ownership stake in Tronox over time. On October 10, 2017, Exxaro sold 22,425,000 Class A ordinary shares (“Class A Shares”) in an underwritten registered offering (the “Exxaro Share Transaction”). At December 31, 2017 and December 31, 2016, Exxaro held approximately 24% and 44%, respectively, of the voting securities of Tronox Limited. Presently, Exxaro intends to sell the remainder of its Tronox shares in a staged process over time pursuant to the existing registration statement, subject to market conditions. Exxaro’s sale of Class A Shares does not impact its 26% ownership interest in each of our Tronox KZN Sands (Pty) Ltd. and Tronox Mineral Sands (Pty) Ltd. subsidiaries. See Notes 1 and 21 of notes to the consolidated financial statements for additional information regarding Exxaro transactions.

Principal Business Segment

On September 1, 2017, we completed the previously announced sale of our wholly owned subsidiary Tronox Alkali Corporation (“Alkali”) to Genesis Energy, L.P. for proceeds of $1.325 billion in cash (the “Alkali Sale”). As a result of the Alkali Sale, Alkali’s results of operations have been reported as discontinued operations and we now operate under one operating and reportable segment, TiO₂. See Notes 3 and 22 of notes to consolidated financial statements for additional information.

TiO₂ is used in a wide range of products due to its ability to impart whiteness, brightness, and opacity. TiO₂ is used extensively in the manufacture of paint and other coatings, plastics and paper, and in a wide range of other applications, including inks, fibers, rubber, food, cosmetics, and pharmaceuticals. Moreover, it is a critical component of everyday consumer applications due to its superior ability to cover or mask other materials effectively and efficiently relative to alternative white pigments and extenders. TiO₂ is considered to be a quality

of life product, and some research indicates that consumption generally increases as disposable income increases. At present, it is our belief that there is no effective mineral substitute for TiO₂ because no other white pigment has the physical properties for achieving comparable opacity and brightness, or can be incorporated as cost effectively.

Our TiO₂ business includes the following:

Exploration, Mining and Beneficiation of Mineral Sands Deposits

“Mineral sands” refers to concentrations of heavy minerals in an alluvial environment (sandy or sedimentary deposits near a sea, river or other water source). Mineral sands are the most important source of raw material for manufacture of pigment-grade TiO₂. Our exploration, mining and beneficiation of mineral sands deposits are comprised of the following:

Exploration

Ilmenite - Ilmenite is the most abundant titanium mineral, with naturally occurring ilmenite having a titanium dioxide content ranging from approximately 45% to 65%, depending on its geological history. The weathering of ilmenite in its natural environment results in oxidation of the iron, which increases titanium content.

Rutile - Rutile is essentially composed of crystalline titanium dioxide and, in its pure state, would contain close to 100% titanium dioxide. Naturally occurring rutile, however, usually contains minor impurities and therefore, commercial concentrates of this mineral typically contain approximately 94% to 96% titanium dioxide.

Leucoxene - Leucoxene is a natural alteration of ilmenite with a titanium dioxide content ranging from approximately 65% to 90%. The weathering process is responsible for the alteration of ilmenite to leucoxene, which results in the removal of iron, leading to an upgrade in titanium dioxide content.

Titanium Slag - The production of titanium slag involves smelting ilmenite in an electric arc furnace under reducing conditions, normally with anthracite (coal) used as a reducing agent. Slag, containing the bulk of the titanium and impurities other than iron, and a high purity pig iron are both produced in this process. The final quality of the slag is highly dependent on the quality of the original ilmenite and the ash composition of the anthracite used in the furnace. Titanium slag has a titanium dioxide content of approximately 75% to 91%. Our slag typically contains 86% to 89% titanium dioxide.

Titanium Slag Fines - For titanium slag to be suitable for use in the chloride process, it needs to be milled down to a particle size range, which allows it to be processed effectively during the chlorination step of the chloride process. The milling of titanium slag results in the generation of a smaller size than can readily be used by chloride producers, which is separated and sold as a separate product, mostly to pigment producers who operate the sulfate process.

Synthetic Rutile - A number of processes have been developed for the beneficiation of ilmenite into products containing between approximately 90% and 95% titanium dioxide. These products are known as synthetic rutile or upgraded ilmenite. The processes employed vary in terms of the extent to which the ilmenite grain is reduced, and the precise nature of the reducing reaction and the conditions used in the subsequent removal of iron. All of the existing commercial processes are based on the reduction of ilmenite in a rotary kiln, followed by leaching under various conditions to remove the iron from the reduced ilmenite grains. Our synthetic rutile has a titanium dioxide content of approximately 90% to 93%.

Zircon - Zircon is often, but not always, found in the mineral sands deposits containing ilmenite. It is extracted, alongside ilmenite and rutile, as part of the initial mineral sands beneficiation process.

Mining

The mining of mineral sands deposits is conducted either “wet,” by dredging or hydraulic water jets, or “dry,” using earth-moving equipment to excavate and transport the sands. Dredging, as used at the Cooljarloo mine, is generally the favored method of mining mineral sands, provided that the ground conditions are suitable and water is readily available. In situations involving hard ground, discontinuous ore bodies, small tonnage, high slimes contents or very high grades, dry mining techniques are generally preferred.

Dredge Mining - Dredge mining, or wet mining, is best suited to ore reserves located below the water table. A floating dredge removes the ore from the bottom of an artificial pond through a large suction pipe. The bulk sand material is fed as slurry through a primary, or “wet,” concentrator that is typically towed behind the dredge unit. The dredge slowly advances across the pond and deposits clean sand tailings behind the pond for subsequent revegetation and rehabilitation. Because of the high capital cost involved in the manufacturing and location, dredge mining is most suitable for large, long-life deposits. The dredging operations at Cooljarloo use two large floating dredges in a purpose-built pond. The slurry is pumped to a floating concentrator, which recovers heavy minerals from the sand and clay.

Hydraulic Mining - At our Fairbreeze mine in KZN, we employ a hydraulic mining method for mineral sands due to the topography of the ore body and the ore characteristics. A jet of high-pressure water is aimed at the mining face, thereby cutting into and loosening the sand so that it collapses on the floor. The water acts as a carrier medium for the sand, due to the high fines (mineral particles that are too fine to be economically extracted and other materials that remain after the valuable fraction of an ore has been separated from the uneconomic fraction) content contained in the ore body. The slurry generated by the hydraulic monitors flows to a collection sump where oversize material is removed and the slurry is then pumped to the primary concentration plant.

Dry Mining - Dry mining is suitable where mineral deposits are shallow, contain hard bands of rock, or are in a series of unconnected ore bodies. Dry mining is performed at Namakwa Sands, which is located in an arid region on the west coast of South Africa. The ore is mined with front end loaders in a load and carry operation, dumping the mineral bearing sands onto a conveyor belt system that follows behind the mining face. The harder layers are mined using hydraulic excavators in a backhoe configuration or by bulldozer. Namakwa Sands does not use blasting in its operations. The mined material is transported by trucks to the mineral sizers where primary reduction takes place.

Processing and Mineral Separation

Processing - Both wet and dry mining techniques utilize wet concentrator plants to produce a high grade of heavy mineral concentrate (typically approximately 90% to 98% heavy mineral content). Screened ore is first deslimed, a process by which slimes are separated from larger particles of minerals, and then washed through a series of spiral separators that use gravity to separate the heavy mineral sands from lighter materials, such as quartz. Residue from the concentration process is pumped back into either the open pits or slimes dams for rehabilitation and water recovery. Water used in the process is recycled into a clean water dam with any additional water requirements made up from pit dewatering or rainfall.

Mineral Separation - The non-magnetic (zircon and rutile) and magnetic (ilmenite) concentrates are passed through a dry separation process, known as the “dry mill” to separate out the minerals. Electrostatic and dry magnetic methods are used to further separate the ilmenite, rutile and zircon. Electrostatic separation relies on the difference in surface conductivity of the materials to be separated. Conductive minerals (such as ilmenite, rutile

and leucoxene) behave differently from non-conductive minerals (such as zircon) when subjected to electrical forces. Magnetic separation techniques are dependent on the iron content of a mineral. Magnetic minerals (such as ilmenite) will separate from non-magnetic minerals (such as rutile and leucoxene) when subjected to a magnetic field. A combination of gravity and magnetic separation is used to separate zircon from the non-magnetic portion of the heavy mineral concentrate. The heavy mineral concentrate at KZN Sands and Namakwa Sands is passed through wet high-intensity magnetic separation to produce a non-magnetic fraction and a magnetic fraction.

Production of titanium feedstock, pig iron, and zircon

Our TiO₂ operations have a combined annual production capacity of approximately 721,000 metric tons (“MT”) of titanium feedstock, which is comprised of 91,000 MT of rutile and leucoxene, 220,000 MT of synthetic rutile, and 410,000 MT of titanium slag. Our TiO₂ operations also have the capability to produce approximately 220,000 MT of zircon and 221,000 MT of pig iron.

Synthetic Rutile Production - Ilmenite may also be upgraded into synthetic rutile. Synthetic rutile, or upgraded ilmenite, is a chemically modified form of ilmenite that has the majority of the ferrous, non-titanium components removed, and is also suitable for use in the production of titanium metal or TiO₂ using the chloride process. Ilmenite is converted to synthetic rutile in a two-stage pyrometallurgical and chemical process. The first stage involves heating ilmenite in a large rotary kiln. Coal is used as a heat source and, when burned in an oxygen deficient environment, it produces carbon monoxide, which promotes a reducing environment that converts the iron oxide contained in the ilmenite to metallic iron. The intermediate product, called reduced ilmenite, is a highly magnetic sand grain due to the presence of the metallic iron. The second stage involves the conversion of reduced ilmenite to synthetic rutile by removing the metallic iron from the reduced ilmenite grain. This conversion is achieved through aeration (oxidation), accelerated through the use of ammonium chloride as a catalyst, and acid leaching of the iron to dissolve it out of the reduced ilmenite. Activated carbon is also produced as a co-product of the synthetic rutile production process.

Titanium Feedstock - Ilmenite, rutile, leucoxene, titanium slag and synthetic rutile are all used primarily as feedstock for the production of TiO₂. Titanium feedstock can be segmented based on the level of titanium contained within the feedstock, with substantial overlap between each segment. Different grades of titanium feedstock have similar characteristics. As such, TiO₂ producers generally source and supply a variety of feedstock grades, and often blend them into one feedstock. The lower amount of titanium used in the TiO₂ manufacturing process, the more feedstock required and waste material produced. Naturally occurring high-grade titanium minerals required for the production of TiO₂ are limited in supply. Two processes have been developed commercially: one for the production of titanium slag and the other for the production of synthetic rutile. Both processes use ilmenite as a raw material, and involve the removal of iron oxides and other non-titanium material.

Titanium Slag - Ilmenite at KZN Sands and Namakwa Sands is processed further through direct current arc furnaces to produce titanium slag with a titanium content of approximately 86% to 89%. The smelting process comprises the reduction of ilmenite to produce titanium slag and pig iron. Ilmenite and anthracite are fed in a tightly controlled ratio into an operating furnace where the endothermic reduction of ilmenite occurs. The resultant titanium slag has a lower density than the iron, and separation of the two liquid products occurs inside the furnace. The slag and iron are tapped periodically from separate sets of tapholes located around the circumference of the furnace. Slag is tapped into steel pots and cooled for several hours in the pots before the slag blocks are tipped out. The blocks are subsequently transported to the blockyard where they are cooled under water sprays for a number of days. They are then crushed, milled, and separated according to size fractions, as required by the customers. The tapped pig iron is re-carburized, de-sulfurized, and cast into ingots or “pigs”.

High Purity Pig Iron - The process by which ilmenite is converted into titanium slag results in the production of high purity iron containing low levels of manganese. When iron is produced in this manner, the molten iron is tapped from the ilmenite furnace during the smelting process, alloyed by adding carbon and silicon and treated to reduce the sulfur content, and is then cast into pigs. The pig iron produced as a co-product of our titanium slag production is known as low manganese pig iron.

Zircon - Zircon (ZrSiO4) is a co-product of mining mineral sands deposits for titanium feedstock. Zircon is primarily used as an additive in ceramic glazes to add hardness, which makes the ceramic glaze more water, chemical and abrasion resistant. It is also used for the production of zirconium metal and zirconium chemicals, in refractories, as molding sand in foundries, and for TV screen glass, where it is noted for its structural stability at

high temperatures and resistance to abrasive and corrosive conditions. Zircon typically represents a relatively low proportion of the in-situ heavy mineral sands deposits, but has a relatively higher value compared to other heavy mineral products. Refractories containing zircon are expensive and are only used in demanding, high-wear and corrosive applications in the glass, steel and cement industries. Foundry applications use zircon when casting articles of high quality and value where accurate sizing is crucial, such as aerospace, automotive, medical, and other high-end applications.

Competitive Conditions

Globally, there are a small number of large mining companies or groups that are involved in the production of titanium feedstock and these are dominated by close relationships between miners and consumers (predominately pigment producers).

Production and Marketing of TiO₂

We operate three TiO₂ pigment facilities at the following locations: Hamilton, Mississippi; Botlek, the Netherlands; and Kwinana, Western Australia, representing an aggregate annual TiO₂ production capacity of 465,000 MT.

Production

TiO₂ is produced using a combination of processes involving the manufacture of base pigment particles followed by surface treatment, drying and milling (collectively known as finishing). Two commercial production processes are used by manufacturers: the chloride process and the sulphate process. All of our TiO₂ is produced using the chloride process. We are one of a limited number of TiO₂ producers in the world with chloride production technology. We believe that we are one of the largest global producers and marketers of TiO₂ manufactured via chloride technology. TiO₂ produced using the chloride process is preferred for some of the largest end-use applications.

In the chloride process, high quality feedstock (slag, synthetic rutile, natural rutile or, in limited cases, high titanium content ilmenite ores) are reacted with chlorine (the chlorination step) and carbon to form titanium tetrachloride (“TiCl4”) in a continuous fluid bed reactor. Purification of TiCl4 to remove other chlorinated products is accomplished using a distillation process. The purified TiCl4 is then oxidized in a vapor phase form to produce raw pigment particles and chlorine gas. The latter is recycled back to the chlorination step for reuse. Raw pigment is then typically slurried with water and dispersants prior to entering the finishing step. The chloride process currently accounts for substantially all of the industry-wide TiO₂ production capacity in North America, and approximately 46% of industry-wide capacity globally.

Commercial production of TiO₂ results in one of two different crystal forms: rutile, which is manufactured using either the chloride process or the sulphate process, or anatase, which is only produced using the sulfate process. All of our global production capacity utilizes the chloride process to produce rutile TiO₂. Rutile TiO₂ is preferred over anatase TiO₂ for many of the largest end-use applications, such as coatings and plastics, because its higher refractive index imparts better hiding power at lower quantities than the anatase crystal form and it is more suitable for outdoor use because it is more durable. Although rutile TiO₂ can be produced using either the chloride process or the sulphate process, some customers prefer rutile produced using the chloride process because it typically has a bluer undertone and greater durability.

The primary raw materials used in the production of TiO₂ include titanium feedstock, chlorine and coke. Chemicals used in the production of TiO₂ include oxygen and nitrogen. Other chemicals used in the production of TiO₂ are purchased from various companies under long-term supply contracts. In the past, we have been, and we expect that we will continue to be, successful in obtaining short-term and long-term extensions to these and other existing supply contracts prior to their expiration. We expect the raw materials purchased under these contracts, and contracts that we may enter into in the near term, to meet our requirements over the next several years.

Marketing

We supply and market TiO₂ under the brand name TRONOX® to approximately 700 customers in approximately 100 countries, including market leaders in each of the key end-use markets for TiO₂, and we have supplied each of our top ten customers with TiO₂ for more than 10 years. For information regarding 2017 sales volume by geography and end-use market, see section “Segment and Geographic Revenue Information”.

In addition to price and product quality, we compete on the basis of technical support and customer service. Our direct sales and technical service organizations execute our sales and marketing strategy, and work together to provide quality customer service. Our direct sales staff is trained in all of our products and applications. Due to the technical requirements of TiO₂ applications, our technical service organization and direct sales offices are supported by a regional customer service staff located in each of our major geographic markets.

Our three TiO₂ production facilities are strategically positioned in key geographies. The Hamilton facility located in Mississippi USA, is one of the largest TiO₂ production facilities in the world, and has the size and scale to service customers in North America and around the globe. Our Kwinana plant, located in Australia, is well positioned to service the growing demand from Asia. Our Botlek facility, located in the Netherlands, services our European customers and certain specialized applications globally.

Our sales and marketing strategy focuses on effective customer management through the development of strong relationships. We develop customer relationships and manage customer contact through our sales team, technical service organization, research and development team, customer service team, plant operations personnel, supply chain specialists, and senior management visits. We believe that multiple points of customer contact facilitate efficient problem solving, supply chain support, formula optimization and co-development of products.

The global market in which our TiO₂ business operates is highly competitive. Competition is based on a number of factors such as price, product quality, and service. We face competition not only from chloride process pigment producers, but from sulfate process pigment producers as well. Moreover, because transportation costs are minor relative to the cost of our product, there is also competition between products produced in one region versus products produced in another region.

We face competition from competitors with facilities in multiple regions, including Chemours, Cristal Global, Venator and Kronos Worldwide Inc. In addition to the major competitors discussed above, we compete with numerous regional producers, including producers in China such as Lomon Billions, CNNC and Blue Star.

Electrolytic Manganese Dioxide Manufacturing and Marketing

Our electrolytic and other chemical products operations are primarily focused on advanced battery materials and specialty boron products.

Electrolytic manganese dioxide (“EMD”) - EMD is the active cathode material for alkaline batteries used in flashlights, electronic games, and medical and industrial devices. We believe that we are one of the largest producers of EMD for the global alkaline battery industry. EMD quality requirements for alkaline technology are much more demanding than for zinc carbon technology and, as a result, alkaline-grade EMD commands a higher price than zinc carbon-grade EMD. The United States (“U.S.”) primary battery market, predominantly based on alkaline-grade EMD, is the largest in the world followed by China and Japan according to publicly available industry reports. As such, we expect demand for alkaline-grade EMD to be flat as the demand stabilizes for devices using primary batteries.

Boron - Specialty boron product end-use applications include semiconductors, pharmaceuticals, high-performance fibers, specialty ceramics and epoxies, as well as igniter formulations. According to publicly available industry reports, we are one of the leading suppliers of boron trichloride, along with JSC Aviabor, Sigma-Aldrich Corporation, and several Asian manufacturers. We anticipate demand for boron trichloride will remain positive, driven primarily by the growth of the semiconductor industry.

Research and Development

We have research and development facilities that service our products, and focus on applied research and development of both new and existing processes. Our research and development facilities supporting our mineral sands business are located in South Africa, while the majority of scientists supporting our pigment and electrolytic research and development efforts are located in Oklahoma City, Oklahoma, USA.

New process developments are focused on increased throughput, efficiency gains and general processing equipment-related improvements. Ongoing development of process technology contributes to cost reduction, enhanced production flexibility, increased capacity, and improved consistency of product quality. In 2017, our product development and commercialization efforts were focused on several TiO₂ products that deliver added value to customers across all end use segments by way of enhanced properties of the pigment.

Patents, Trademarks, Trade Secrets and Other Intellectual Property Rights

Protection of our proprietary intellectual property is important to our business. At December 31, 2017, we held 38 U.S. patents, 6 patent applications, and approximately 217 in foreign counterparts, including both issued patents and pending patent applications. Our U.S. patents have expiration dates ranging through 2035. Additionally, we have 5 trademark registrations in the U.S., as well as 54 trademark counterpart registrations in foreign jurisdictions.

We rely upon, and have taken steps to secure our unpatented proprietary technology, know-how and other trade secrets. The substantial majority of business patents relate to our chloride products and production technology. Our proprietary chloride production technology is an important part of our overall technology position. However, much of the fundamental intellectual property associated with both chloride and sulfate pigment production is no longer subject to patent protection. At Namakwa Sands, we rely on intellectual property for our smelting technology, which was granted to us in perpetuity by Anglo American South Africa Limited for use on a worldwide basis, pursuant to a non-exclusive license.

We protect the trademarks that we use in connection with the products we manufacture and sell, and have developed value in connection with our long-term use of our trademarks; however, there can be no assurance that the trademark registrations will provide meaningful protection against the use of similar trademarks by competitors, or that the value of our trademarks will not be diluted. The same can be said for our patents and patent applications, which may in the future be the subject of a challenge regarding validity as well as ownership, requiring a defense of the patent/application through legal proceedings, which inherently introduce a degree of business uncertainty and risk. We also use and rely upon unpatented proprietary knowledge, continuing technological innovation and other trade secrets to develop and maintain our competitive position. We conduct research activities and protect the confidentiality of our trade secrets through reasonable measures, including confidentiality agreements and security procedures. While certain patents held for our products and production processes are important to our long-term success, more important is the operational knowledge we possess.

Employees

As of December 31, 2017, Tronox had approximately 3,400 employees worldwide, of which 700 are located in the U.S., 600 in Australia, 1,800 in South Africa, and 300 in the Netherlands and other international locations. Our TiO₂ segment employees in the U.S. are not represented by a union or collective bargaining agreement. In South Africa, approximately 73% of our workforce belongs to a union. In Australia, most employees are not currently represented by a union, but approximately 46% are represented by a collective bargaining agreement. In the Netherlands, approximately 49% of our employees are represented by a collective bargaining agreement and 27% are members of a union. We consider relations with our employees and labor organizations to be good.

Environmental, Health and Safety Authorizations

Mining

Our facilities and operations are subject to extensive general and industry-specific environmental, health and safety regulations in South Africa and Australia. These regulations include those relating to mine rehabilitation, liability provision, water management, the handling and disposal of hazardous and non-hazardous materials, and occupational health and safety. The various legislation and regulations are subject to a number of internal and external audits. We believe our mineral sands operations are in compliance, in all material respects, with existing health, safety and environmental legislation and regulations.

Regulation of the Mining Industry in South Africa

There are numerous mining-related laws and regulatory authorizations that may impact the performance of our business. These include but are not limited to: the Mineral and Petroleum Resources Royalty Act, which imposes a royalty on refined and unrefined minerals payable to the South African government; the Mineral and Petroleum Resources Development ACT (the “MPRDA”), which governs the acquisition, use and disposal of mineral rights; the South African Minerals Act, which requires each new mine to prepare an Environmental Management Program Report for approval by the South African Department of Mineral Reserves (DMR); the Revised South African Mining Charter, effective September 2010, which requires, among other conditions, that mining entities achieve a 26% historically disadvantaged persons ownership of mining assets and the Black

Economic Empowerment (“BEE”) legislation in South Africa. The DMR has proposed changes to the mining charter that would make requirements more stringent. These changes are being challenged by the Chamber of Mines, an industry employers’ organization representing South African mining companies, the outcome of which is uncertain. See Item 1A. Risk Factors.

Regulation of the Mining Industry in Australia

Mining operations in Western Australia are subject to a variety of environmental protection regulations including but not limited to: the Environmental Protection Act (the “EPA”), the primary source of environmental regulation in Western Australia, and, the Environment Protection and Biodiversity Conservation Act 1999 (Cth), which established the federal environment protection regime and prohibits the carrying out of a “controlled action” that may have a significant impact on a “matter of national environmental significance.”

Prescriptive legislation regulates health and safety at mining workplaces in Western Australia. The principal general occupational health and safety legislation and regulations are the Occupational Safety and Health Act 1984 (WA), the Occupational Health and Safety Regulations 1996 (WA) and the guidelines. The Mines Safety and Inspection Act 1994 (WA) and Mines Safety and Inspection Regulations 1995 (WA) and guidelines provide the relevant legislation for mining operations in Western Australia. The Dangerous Goods Act 2004 (WA) applies to the safe storage, handling and transport of dangerous goods.

Each Australian state and territory has its own legislation regulating the exploration for and mining of minerals. Our operations are principally regulated by the Western Australian Mining Act 1978 (WA) and the Mining Regulations 1981 (WA).

State Agreements are contracts between the State of Western Australia and the proponents of major resources projects, and are intended to foster resource development and related infrastructure investments. These agreements are approved and ratified by the Parliament of Western Australia. The State Agreement relevant to our Australian operations and our production of mineral sands is the agreement authorized by the Mineral Sands (Cooljarloo) Mining and Processing Agreement Act 1988 (WA). State Agreements may only be amended by mutual consent, which reduces the sovereign risk and increases the security of tenure, however Parliament may enact legislation that overrules or amends the particular State Agreement.

Regulation of Finished Product Manufacturing

Our business is subject to extensive regulation by federal, state, local and foreign governments. Governmental authorities regulate the generation and treatment of waste and air emissions at our operations and facilities. At many of our operations, we also comply with worldwide, voluntary standards developed by the International Organization for Standardization (“ISO”), a nongovernmental organization that promotes the development of standards and serves as a bridging organization for quality and environmental standards, such as ISO 9002 for quality management and ISO 14001 for environmental management.

Chemical Registration

The European Union (the “EU”) adopted a regulatory framework for chemicals in 2006 known as Registration, Evaluation and Authorization of Chemicals (“REACH”). Manufacturers and importers of chemical substances must register information regarding the properties of their existing chemical substances with the European Chemicals Agency. The timeline for existing chemical substances to be registered is based on volume and toxicity. The first group of chemical substances was required to be registered in 2010, with additional registrations due in 2013 and 2018. We registered those products requiring registration by the 2010 and 2013 deadlines. The REACH regulations also require chemical substances, which are newly imported or manufactured in the EU to be registered before being placed on the market. We are now focused on the authorization phase of the REACH process, and are making efforts to address “Substances of Very High Concern” and evaluating potential business implications. As a chemical manufacturer with global operations, we are also actively monitoring and addressing analogous regulatory regimes being considered or implemented outside of the EU, for example, in Korea and Taiwan.

In May 2016, France’s competent authority under REACH submitted a proposal to the European Chemicals Agency (“ECHA”) that would classify TiO₂ as carcinogenic to humans by inhalation. The Company together with other companies and trade associations representing the TiO₂ industry and industries consuming our products, submitted comments opposing the classification, based on evidence from epidemiological and other scientific studies. On October 12, 2017, ECHA’s Committee for Risk Assessment (“RAC”) released a written opinion dated September 14, 2017 stating that based on the scientific evidence it reviewed, there is sufficient grounds to classify TiO₂ under the EU’s Classification, Labelling and Packaging Regulation (“CLP”) as a Category 2 Carcinogen, but only with a hazard statement describing the risk by inhalation. The European Commission will review the RAC’s formal recommendation to determine what regulatory measures, if any, should be taken. If the European Commission decides to adopt this classification, it could require that products manufactured with TiO₂ be classified as containing carcinogenic materials, which could impact our business by inhibiting the marketing of products containing TiO₂ to consumers, and subject our manufacturing operations to new regulations that could increase costs. Any classification, use restriction or authorized requirement for use imposed by the ECHA could have additional effects under other EU laws (e.g., those affecting medical and pharmaceutical applications, cosmetics, food packaging and food additives) and/or trigger heightened regulatory scrutiny in countries and local jurisdictions outside the EU based on health and safety grounds. It is also possible that heightened regulatory scrutiny would lead to claims by consumers or those involved in the production of such products alleging adverse health impacts. See Item 1A. Risk Factors.

Greenhouse Gas Regulation

Globally, our operations are subject to regulations that seek to reduce emissions of “greenhouse gases” (“GHGs”). We currently report and manage GHG emissions as required by law for sites located in areas requiring such managing and reporting (EU/Australia). While the U.S. has not adopted any federal climate change legislation, the U.S. Environmental Protection Agency (“EPA”) has introduced some GHG programs. For example, under the EPA’s GHG “Tailoring Rule,” expansions or new construction could be subject to the Clean Air Act’s Prevention of Significant Deterioration requirements. Some of our facilities are currently subject to GHG emissions monitoring and reporting. Changes or additional requirements due to GHG regulations could impact our capital and operating costs; however, it is not possible at the present time to estimate any financial impact to these U.S. operating sites. Also, some in the scientific community believe that increasing concentrations of GHGs in the atmosphere may result in climatic changes. Depending on the severity of climatic changes, our operations could be adversely affected. See Item 1A. Risk Factors.

Segment and Geographic Revenue Information

The tables below summarize Tronox Limited 2017 sales volume by geography and end-use market:

Financial information by segment and geographic region is set forth in Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations and Note 22 of Notes to consolidated financial statements.

Available Information

Our public internet site is http://www.tronox.com. The content of our internet site is available for information purposes only. It should not be relied upon for investment purposes, nor is it incorporated by reference into this annual report unless expressly noted. We make available, free of charge, on or through the investor relations section of our internet site, our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on

Form 8-K, proxy statements and Forms 3, 4 and 5 filed on behalf of directors and executive officers, as well as any amendments to those reports filed or furnished pursuant to the Exchange Act as soon as reasonably practicable after we electronically file such material with, or furnish it to, the U.S. Securities and Exchange Commission (the “SEC”).

We file current, annual and quarterly reports, proxy statements and other information required by the Exchange Act with the SEC. You may read and copy any document we file at the SEC’s public reference room located at 100 F Street, N.E., Washington, D.C. 20549, USA, or by calling +1-800-SEC-0330. Our SEC filings are also available to the public from the SEC’s internet site at http://www.sec.gov.

Item 1A.   Risk Factors

You should carefully consider the risk factors set forth below, as well as the other information contained in this Form 10-K, including our consolidated financial statements and related notes. This Form 10-K contains forward-looking statements that involve risks and uncertainties. Any of the following risks could materially and adversely affect our business, financial condition or results of operations. Additional risks and uncertainties not currently known to us or those we currently view to be immaterial may also materially and adversely affect our business, financial condition or results of operations.

Our pending acquisition of the Cristal TiO₂ Business may not be consummated, and failure to complete the Cristal TiO₂ Business acquisition could impact our stock price and financial results.

On February 21, 2017, we entered into a transaction agreement to acquire the titanium dioxide business of The National Titanium Dioxide Co. Limited (“Cristal”) and on March 1, 2018, we amended the Transaction Agreement to provide for revised terms with respect to such acquisition in certain respects (the “Cristal Transaction”). Completion of the Cristal Transaction is subject to certain closing conditions, including certain regulatory approvals.

On December 5, 2017, the U.S. Federal Trade Commission (“FTC”) announced that it would not approve the Cristal Transaction as proposed and filed an administrative action to prevent the parties from consummating the transaction. On December 21, 2017, the European Commission announced that after its initial review, it would pursue a more in-depth investigation (commonly called a “Phase II investigation”) of the Cristal Transaction before reaching a decision to approve it, with or without conditions. The transaction agreement provides for customary representations, warranties and covenants that are subject, in some cases, to specified exceptions and qualifications contained in the transaction agreement. There can be no assurance, however, that all closing conditions for the Cristal Transaction will be satisfied and, if they are satisfied, that they will be satisfied in time for the closing to occur by June 30, 2018 (subject to automatic 3-month extensions to March 31, 2019 if necessary based on the status of outstanding regulatory approvals), at which time either party to the transaction agreement may mutually agree to extend the closing date or terminate the transaction agreement if the Cristal Transaction has not closed by such time.

The Cristal Transaction is conditioned on the Company obtaining financing sufficient to fund the cash consideration, and the transaction agreement provides that the Company must pay to Cristal a termination fee of $100 million if all conditions to closing, other than the financing condition, have been satisfied and the transaction agreement is terminated because closing of the Cristal Transaction has not occurred by June 30, 2018 (subject to automatic 3-month extensions to March 31, 2019 if necessary based on the status of outstanding regulatory approvals). In the event that such termination by Tronox is (i) on or after January 1, 2019, and Tronox elects to terminate the Transaction Agreement if it determines that the outstanding regulatory approvals are not reasonably likely to be obtained; or (ii) if regulatory approval has not been obtained by March 31, 2019 and Tronox or Cristal elects to terminate the Transaction Agreement; then Tronox is required to pay Cristal a $60 million termination fee. Tronox completed its refinancing during the third quarter of 2017. See Note 15 of notes of consolidated financial statements.

The cash portion of the consideration in the Cristal Transaction will be funded through a combination of proceeds from the Alkali Sale, which was completed on September 1, 2017, the refinancing of our debt, including the Blocked Term Loan and cash on hand. See Note 15 of notes to the consolidated financial statements.

If the acquisition of the Cristal TiO₂ business is not completed, our ongoing business and financial results may be adversely affected and we will be subject to a number of risks, including the following:

In addition, if the Cristal Transaction is not completed or is completed subject to conditions or remedies, we may experience negative reactions from the financial markets and from our customers and employees and/or lose the anticipated benefits of owning all or portions of Cristal’s TiO₂ business. If the acquisition is not completed, these risks may materialize and may adversely affect our business, results of operations, cash flows, as well as the price of our Class A Shares.

Concentrated ownership of our ordinary shares by Cristal and Exxaro may prevent minority shareholders from influencing significant corporate decisions and may result in conflicts of interest.

Following the closing of the Cristal Transaction, Cristal Inorganic Chemicals Netherlands Coöperatief W.A. (“Cristal Inorganic”), a wholly-owned subsidiary of Cristal, will own approximately 24% of the outstanding ordinary shares (including both our Class A Shares and Class B Shares) of the Company. Following the closing of the Cristal Transaction and assuming that Exxaro does not engage in additional sales of its Class B Shares, Exxaro will own approximately 18% of the Company’s outstanding ordinary shares (including both our Class A Shares and Class B Shares).

Cristal Inorganic and Exxaro may be able to influence fundamental corporate matters and transactions, including mergers or acquisitions (subject to prior board approval); the sale of all or substantially all of our assets; in certain circumstances, the amendment of our Constitution; and our winding up and dissolution. This concentration of ownership, may delay, deter or prevent acts that would be favored by our other shareholders. The interests of Cristal Inorganic and Exxaro may not always coincide with our interests or the interests of our other shareholders. Also, Cristal Inorganic and Exxaro may seek to cause us to take courses of action that, in its judgment, could enhance its investment in us, but which might involve risks to our other shareholders or adversely affect us or our other shareholders.

In addition, under the shareholders agreement, to be entered into upon the closing of the Cristal Transaction (the “Cristal Shareholders Agreement”), among the Company, on the one hand, and Cristal, Cristal Inorganic and the three shareholders of Cristal, on the other hand (collectively, the “Cristal Shareholders”), as long as the Cristal Shareholders, collectively, beneficially own at least 24,900,000 or more of Class A Shares, they will have the right to designate for nomination two Class A Directors of the Board (defined below) and, as long as they beneficially own at least 12,450,000 Class A Shares but less than 24,900,000 Class A Shares, they will have the right to designate for nomination one Class A director of the Board. The Cristal Shareholders Agreement also will provide that as long as the Cristal Shareholders own at least 11,743,750 Class A Shares, they will be granted certain preemptive rights. Also under the Cristal Shareholders Agreement, the Company has agreed to file promptly after the closing of the acquisition a registration statement covering approximately four percent of the then-outstanding ordinary shares of the Company, which may be sold as soon as such registration statement is effective. Other than with respect to those shares, the Cristal Shareholders Agreement will include restrictions on Cristal Inorganic’s ability to transfer any of its Class A Shares for a period of two years after the closing of the acquisition other than to certain permitted transferees after the later of eighteen months and the resolution of all indemnification claims under the Transaction Agreement subject to certain further limitations. The Cristal Shareholders Agreement will also contain certain demand and piggyback registration rights, which commence after the transfer restriction period expires. Exxaro’s rights under our Constitution and Shareholder’s Deed will remain unchanged following the Cristal Transaction.

As a result of these or other factors, the market price of our Class A Shares could decline. In addition, this concentration of share ownership may adversely affect the trading price of our Class A Shares because investors may perceive disadvantages in owning shares in a company with significant shareholders.

We may not be able to realize anticipated benefits of the Cristal Transaction, including expected synergies, earnings per share accretion or earnings before interest, taxes, depreciation and amortization (“EBITDA”) and free cash flow growth and we will be subject to business uncertainties that could adversely affect our business.

The success of the pending Cristal Transaction will depend, in part, on our ability to realize anticipated cost synergies, earnings per share accretion or EBITDA and free cash flow growth. Our success in realizing these benefits, and the timing of this realization, depends on the successful integration of our business and operations with the acquired business and operations. Even if we are able to integrate the acquired businesses and operations successfully, this integration may not result in the realization of the full benefits of the pending Cristal Transaction that we currently expect within the anticipated time frame or at all.

There is also the possibility that:

Uncertainty about the effect of the Cristal Transaction on employees, customers and suppliers may have an adverse effect on our business. These uncertainties may impair our ability to attract, retain and motivate key personnel until the Cristal Transaction is consummated and for a period of time thereafter, and could cause our customers, suppliers and other business partners to delay or defer certain business decisions or to seek to change existing business relationships with us. The occurrence of any of these events could have a material adverse effect on our operating results, particularly during the period immediately following the closing of the Cristal Transaction.

Market conditions, as well as global and regional economic downturns that adversely affect the demand for our end-use products could adversely affect the profitability of our operations and the prices at which we can sell our products, negatively impacting our financial results.

Our TiO₂ revenue and profitability is dependent on direct sales of TiO₂ to end user customers and sales of TiO₂ feedstock to TiO₂ producers. TiO₂ is a chemical used in many “quality of life” products for which demand historically has been linked to global, regional and local GDP and discretionary spending, which can be negatively impacted by regional and world events or economic and market conditions. Such events can cause a decrease in demand for our products and market prices to fall, which may have an adverse effect on our results of operations and financial condition. A substantial portion of our products and raw materials are commodities that reprice as market supply and demand fundamentals change. Accordingly, product margins and the level of our profitability tend to vary with changes in the business cycle. Our TiO₂ prices may do so in the near term as ore prices and pigment prices are expected to fluctuate in the short term and over the next few years.

A significant portion of the demand for our products comes from manufacturers of paint and plastics, and other industrial customers. Companies that operate in the industries that these industries serve, including the automotive and construction, may experience significant fluctuations in demand for their own end products because of economic conditions, changes in consumer demand, or increases in raw material and energy costs. In addition, many large end users of our products depend upon the availability of credit on favorable terms to make purchases of raw materials such as TiO₂. As interest rates increase or if our customers’ creditworthiness deteriorates, this credit may be expensive or difficult to obtain. If these customers cannot obtain credit on favorable terms, they may be forced to reduce their purchases. These and other factors may lead some customers to seek renegotiation or cancellation of their arrangements with our businesses, which could have a material adverse effect on our results of operations. Additionally, Chinese producers are significant participants in the TiO₂ market and Chinese exports can also affect demand and the price for our products.

TiO₂ pigment and feedstock prices have been and in the future may be volatile. Price declines for our products will negatively affect our financial position and results of operations.

Additionally, historically, the global market and, to a lesser extent, the domestic market for TiO₂ pigment and feedstock have been volatile, and those markets are likely to remain volatile in the future. Prices for TiO₂ pigment and feedstock may fluctuate in response to relatively minor changes in the supply of and demand for these products, market uncertainty and other factors beyond our control.

Factors that affect the price of our products include, among other things:

TiO₂ pigment pricing pressure can make it difficult to predict the cash we may have on hand at any given time, and a prolonged period of price declines may materially and adversely affect our financial position, liquidity, ability to finance planned capital expenditures and results of operations.

The markets for many of our TiO₂ products have seasonally affected sales patterns.

The demand for TiO₂ during a given year is subject to seasonal fluctuations. Because TiO₂ is widely used in paint and other coatings, titanium feedstocks are in higher demand prior to the painting season in the Northern Hemisphere (spring and summer), and pig iron is in lower demand during the European summer holidays, when many steel plants and foundries undergo maintenance. Zircon generally is a non-seasonal product; however, it is negatively impacted by the winter and Chinese New Year celebrations due to reduced zircon demand from China. We may be adversely affected by existing or future cyclical changes, and such conditions may be sustained or further aggravated by anticipated or unanticipated changes in regional weather conditions. For example, poor weather conditions in a region can lead to an abbreviated painting season, which can depress consumer sales of paint products that use TiO₂.

Our results of operations may be adversely affected by fluctuations in currency exchange rates.

The financial condition and results of operations of our operating entities outside the U.S. are reported in various foreign currencies, primarily the South African Rand, Australian Dollars and Euros, and then converted into U.S. dollars at the applicable exchange rate for inclusion in the financial statements. As a result, any volatility of the U.S. dollar against these foreign currencies creates uncertainty for and may have a negative impact on reported sales and operating margin. We have made a U.S. dollar functional currency election for both Australian financial reporting and federal income tax purposes. On this basis, our Australian entities report their results of operations on a U.S. dollar basis. In addition, our operating entities often need to convert currencies they receive for their products into currencies in which they purchase raw materials or pay for services, which could result in a gain or loss depending on fluctuations in exchange rates.

In order to manage this risk, we may, from time to time, enter into forward contracts to buy and sell foreign currencies.

Our operations may be negatively impacted by inflation.

Our profits and financial condition could be adversely affected when cost inflation is not offset by devaluation in operating currencies or an increase in the price of our products. Our operations have been affected by inflation in the countries in which they have operated in recent years. Working costs and wages in South Africa and Australia have increased in recent years, resulting in significant cost pressures for the mining industry.

As an emerging market, South Africa poses a challenging array of long-term political, economic, financial and operational risks.

South Africa has continued undergoing political and economic challenges. Changes to or instability in the economic or political environment in South Africa, especially if such changes create political instability, actual or potential shortages of production materials or labor unrest, could result in production delays and production shortfalls, and materially impact our production and results of operations.

In South Africa, our mining and smelting operations depend on electrical power generated by Eskom, the state-owned sole energy supplier. South African electricity prices have risen during the past few years, and future increases are likely. Additionally, our KZN Sands operations currently use approximately 328,000 gigajoules of Sasol gas, which is available only from Sasol Limited; however, we could replace approximately 30% to 44% of our current Sasol gas usage with furnace off-gas produced by KZN Sands, if necessary.

We use significant amounts of water in our operations, which could impose significant costs. Use of water in South Africa is governed by water-use licenses. Our KZN mining operation in South Africa uses water to transport the slimes or sand from reclaimed areas to the processing plant and to the tailings facilities. Additionally, South Africa is currently experiencing a drought resulting in water restrictions being imposed in certain areas, most notably recently in the Western Cape where our Namakwa Sands operations are located. A prolonged drought in a region of South Africa may lead to continued, or more severe water restrictions, either of which could have a material adverse effect on our business, financial condition or results of operations. Under South African law, our South African mining operations are subject to water-use licenses that govern each operation. These licenses require, among other conditions, that mining operations achieve and maintain certain water quality limits for all water discharges, where applicable. Our South African operations that came into existence after the adoption of the National Water Act, No. 36 of 1998 have applied for and been issued the required water-use licenses. However, changes to water-use licenses could affect our operational results and financial condition. On May 13, 2016, the Department of Water and Sanitation of the Republic of South Africa announced water restrictions affecting users of the fresh water supply to our Namakwa Sands operations. On December 12, 2017 the Department of Water and Sanitation published a notice in terms of the National Water Act (1998) curtailing water usage by 45% for residential and commercial users and 60% for agricultural users. Saldanha Bay Municipality, where our Namakwa Sands Smelter is located, is currently on Level 5 water restrictions and tariffs. While these restrictions have not curtailed our mining or processing operations to date, the reservoirs that store water for the system, which also supplies fresh water to the residents of the City of Cape Town, are at historically low levels and there can be no assurance that further use restrictions or supply curtailments may have a materially adverse impact on our operations at Namakwa Sands and as a result the financial condition and results of operations of our business. Namakwa Sands operations continues to implement freshwater consumption reduction initiatives and finding alternative sources of water to reduce reliance on the city’s water system.

The South African government may intervene in mining through various means including increased taxation, greater control and conditions on the distribution of mineral rights, poverty alleviation, and job creation. Such measures have not yet been defined, and the impact the measures may have on our business remains uncertain.

Changes to the revised MPRDA have been incorporated into the 2013 MPRDA amendment, and are awaiting consideration by the South African Parliament before being promulgated. Some of the proposed changes may have an adverse effect on our business, operating results and financial condition. Although we expect the bulk of the original act to remain intact, there could be substantial changes, based on the current draft. This could have adverse effects on our business, operating results and financial condition.

South Africa’s exchange control regulations require resident companies to obtain the prior approval of the South African Reserve Bank to raise capital in any currency other than the Rand, and restrict the export of capital from South Africa. While the South African government has relaxed exchange controls in recent years, it is difficult to predict whether or how it will further change or abolish exchange control measures in the future. These exchange control restrictions could hinder our financial and strategic flexibility, particularly our ability to use South African capital to fund acquisitions, capital expenditures, and new projects outside of South Africa.

Our operations in South Africa are reliant on services provided by the state agency, Transnet, for limited rail transport services at Namakwa Sands. Furthermore, they provide extensive dockside services at both the ports of Richards Bay and Saldanha Bay. Delays, particularly those caused by industrial actions, could have a negative impact on our business, operating results and financial condition.

South African law governs the payment of compensation and medical costs to a compensation fund against which mining employees and other people at sites where ancillary mining activities are conducted can claim for mining activity-related illnesses or injuries. Should claims against the compensation fund rise significantly due to our mining activity or if claims against us are not covered by the compensation fund, the amount of our contribution or liability to claimants may increase, which could adversely impact our financial condition. In addition, the HIV/AIDS epidemic in South Africa poses risks to our South African operations in terms of potentially reduced productivity, and increased medical and other costs. If there is a significant increase in the incidence of HIV/AIDS infection and related diseases among the South African workforce over the next several years, our operations, projects and financial condition may be adversely affected.

Our flexibility in managing our labor force may be adversely affected by labor and employment laws in the jurisdictions in which we operate, many of which are more onerous than those of the U.S.; and some of our labor force has substantial workers' council or trade union participation, which creates a risk of disruption from labor disputes and new laws affecting employment policies.

Labor costs constituted approximately 29% of our production costs in 2017. The majority of our employees are located outside the U.S. In most of those countries, labor and employment laws are more onerous than in the U.S. and, in many cases, grant significant job protection to employees, including rights on termination of employment.

In South Africa, over 73% of our workforce belongs to a union. In Australia, most employees are not currently represented by a union, but approximately 46% are represented by a collective bargaining agreement. In the Netherlands, approximately 49% of our employees are represented by a collective bargaining agreement and 27% are members of a union.

Our South African operations have entered into various agreements regulating wages and working conditions at our mines. There have been periods when various stakeholders have been unable to agree on dispute resolution processes, leading to threats of disruptive labor disputes, although only two strikes have ever occurred in the history of these operations. Due to the high level of employee union membership, our South African operations are at risk of production stoppages for indefinite periods due to strikes and other labor disputes. Although we believe that we have good labor relations with our South African employees, we may experience labor disputes in the future.

South African employment law, which is based on the minimum standard set by the International Labour Organization, sets out minimum terms and conditions of employment for employees. Although these may be improved by agreements between an employer and the trade unions, prescribed minimum terms and conditions form the benchmark for all employment contracts. Our South African operations are required to submit a report to the South African Department of Labour under South African employment law detailing the progress made towards achieving employment equity in the workplace. Failing to submit this report in a timely manner could result in substantial penalties. In addition, future legislative developments that affect South African employment policies may increase production costs or negatively impact relationships with employees and trade unions, which may have an adverse effect on our business, operating results and financial condition.

We are required to consult with, and seek the consent or advice of, various employee groups or works’ councils that represent our employees for any changes to our activities or employee benefits. This requirement could have a significant impact on our flexibility in managing costs and responding to market changes.

Given the nature of our chemical, mining and smelting operations, we face a material risk of liability, delays and increased cash costs of production from environmental and industrial accidents and operational breakdowns.

Our business involves significant risks and hazards, including environmental hazards, industrial accidents, and breakdowns of equipment and machinery. Our business is exposed to hazards associated with chemical process manufacturing and the related storage, handling and transportation of raw materials, products and wastes, and our furnace operations that are subject to explosions, water ingress and refractory failure, and our open pit and dredge mining operations that are subject to flooding and accidents associated with rock transportation equipment and conveyor belts. Furthermore, during operational breakdowns, the relevant facility may not be fully operational within the anticipated timeframe, which could result in further business losses. The occurrence of any of these or other hazards could delay production, suspend operations, increase repair, maintenance or medical costs and, due to the integration of our facilities, could have an adverse effect on the productivity and profitability of a particular manufacturing facility or on our business as a whole. Over our operating history, we have incurred incidents of this nature. Although insurance policies provide limited coverage for these risks, such policies will not fully cover some of these risks.

There is also a risk that our key raw materials or our products may be found to have currently unrecognized toxicological or health-related impact on the environment or on our customers or employees. Such hazards may cause personal injury and loss of life, damage to property and contamination of the environment, which could lead to government fines or work stoppage injunctions and lawsuits by injured persons. If such actions are required, we may have inadequate insurance to cover such claims, or insufficient cash flow to pay for such claims. Such outcomes could adversely affect our financial condition and results of operations.

Equipment upgrades, equipment failures and deterioration of assets may lead to production curtailments, shutdowns or additional expenditures.

Our operations depend upon critical equipment that require scheduled upgrades and maintenance and, may suffer unanticipated breakdowns or failures. As a result, our mining operations and processing may be interrupted or curtailed, which could have a material adverse effect on our results of operations.

In addition, assets critical to our mining and chemical processing operations may deteriorate due to wear and tear or otherwise sooner than we currently estimate. Such deterioration may result in additional maintenance spending and additional capital expenditures. If these assets do not generate the amount of future cash flows that we expect, and we are not able to refurbish them or procure replacement assets in an economically feasible manner, our future results of operations may be materially and adversely affected.

If any of the equipment on which we depend were severely damaged or were destroyed by fire, abnormal wear and tear, flooding, or otherwise, we may be unable to replace or repair it in a timely manner or at a reasonable cost, which would impact our ability to produce and ship our products, which would have a material adverse effect on our business, financial condition or results of operations.

We are a holding company that is dependent on cash flows from our operating subsidiaries to fund our debt obligations, capital expenditures and ongoing operations.

All of our operations are conducted and all of our assets are owned by our operating companies, which are our subsidiaries. We intend to continue to conduct our operations at the operating companies and any future subsidiaries. Consequently, our cash flow and our ability to meet our obligations or make cash distributions depends upon the cash flow of our operating companies and any future subsidiaries, and the payment of funds by our operating companies and any future subsidiaries in the form of dividends or otherwise. The ability of our operating companies and any future subsidiaries to make any payments to us depends on their earnings, the terms of their indebtedness, including the terms of any credit facilities, or indentures, and legal restrictions regarding the transfer of funds.

Our ability to service our debt and fund our planned capital expenditures and ongoing operations will depend on our ability to generate and increase cash flow, and our access to additional liquidity sources. Our ability to generate and increase cash flow is dependent on many factors, including:

Many of these factors are beyond our control. A general economic downturn can result in reduced spending by customers, which will impact our revenues and cash flows from operating activities. At reduced performance, if we are unable to generate sufficient cash flow or access additional liquidity sources, we may not be able to service and repay our existing debt, operate our business, respond to competitive challenges, or fund our other liquidity and capital needs.

Our industry and the end-use markets in which we compete are highly competitive. This competition may adversely affect our results of operations and operating cash flows.

Each of our markets is highly competitive. Competition in the TiO₂ segment industry is based on a number of factors such as price, product quality, and service. We face significant competition from major international

and smaller regional competitors. Our most significant competitors include major chemical and materials manufacturers and diversified companies, a number of which have substantially larger financial resources, greater personnel, and larger facilities than we do. We also compete with numerous smaller, regional producers as well as Chinese producers that have significantly expanded their sulphate TiO₂ production capacity in recent years and have also commenced the commercial production of TiO₂ via chloride technology.

Zircon producers generally compete on the basis of price, quality, logistics, delivery, and payment terms and consistency of supply. Although we believe we have competitive quality, long-term relationships with customers and product range, our primary competitive disadvantage relative to our major competitors is our distance from our main consumers (i.e., Asia and Europe).

Within the end-use markets in which we compete, competition between products is intense. We face substantial risk that certain events, such as new product development by competitors, changing customer needs, the commercial production of TiO₂ via chloride technology, production advances for competing products, or price changes in raw materials, could cause our customers to switch to our competitors’ products. If we are unable to develop and produce or market our products to compete effectively against our competitors following such events, our results of operations and operating cash flows may suffer.

An increase in the price of energy or other raw materials, or an interruption in our energy or other raw material supply, could have a material adverse effect on our business, financial condition or results of operations.

Our mining and production processes consume significant amounts of energy and raw materials, the costs of which can be subject to worldwide, as well as, local supply and demand, as well as other factors beyond our control. In 2017, raw materials used in the production of TiO₂ constituted approximately 44% of our operating expenses. Fuel and energy linked to commodities, such as diesel, heavy fuel oil and coal, and other consumables, such as chlorine, illuminating paraffin, electrodes, and anthracite, consumed in our TiO₂ manufacturing and mining operations form an important part of our TiO₂ operating costs. We have no control over the costs of these consumables, many of which are linked to some degree to the price of oil and coal, and the costs of many of these raw materials may fluctuate widely for a variety of reasons, including changes in availability, major capacity additions or reductions, or significant facility operating problems. These fluctuations could negatively affect our TiO₂ operating margins, our profitability or planned capital expenditures. As these costs rise, our operating expenses will increase and could adversely affect our business, especially if we are unable to pass price increases in raw materials through to our customers.

The agreements and instruments governing our debt contain restrictions and limitations that could affect our ability to operate our business, as well as impact our liquidity.

As of December 31, 2017, our total principal amount of debt was approximately $3.2 billion. Our credit facilities contain covenants that could adversely affect our ability to operate our business, our liquidity, and our results of operations. These covenants restrict, among other things, our and our subsidiaries’ ability to:

Certain of our facilities, including our $550 million Wells Fargo Revolver and, together with the $2.15 billion New Term Loan Facility, $584 million aggregate principal amount of our Senior Notes due 2022 and our $450 million aggregate principal amount of our Senior Notes due 2025, all defined below, include requirements relating to the ratio of adjusted EBITDA to indebtedness or certain fixed charges. The breach of any covenants or obligations in our credit facilities, not otherwise waived or amended, could result in a default under the applicable debt obligations (and cross-defaults to certain other debt obligations) and could trigger acceleration of those obligations, which in turn could trigger other cross defaults under other future agreements

governing our long-term indebtedness. In addition, the secured lenders under the credit facilities could foreclose on their collateral, which includes equity interests in our subsidiaries, and exercise other rights of secured creditors. Any default under those credit facilities could adversely affect our growth, our financial condition, our results of operations and our ability to make payments on our credit facilities, and could force us to seek the protection of bankruptcy laws.

A large portion of our shares is owned by a single shareholder, Exxaro.

At December 31, 2017, Exxaro held approximately 24% of the voting securities of Tronox Limited, and had two representatives serving as Directors on our nine-member board. On March 8, 2017, Exxaro announced its intention to begin pursuing a path to monetize its ownership stake in Tronox over time. On October 10, 2017, Exxaro sold 22,425,000 Class A ordinary shares in an underwritten registered offering (the “Exxaro Share Transaction”) reducing its ownership percentage of voting securities from 44% at December 31, 2016. Further sales by Exxaro will result in additional Class B Shares converting to Class A Shares and an increase in the number of Class A Shares outstanding could cause the market price of shares to decline.

Due to Exxaro’s significant ownership interest, it is entitled to certain rights under the Constitution and the Shareholder’s Deed of Tronox Limited. For example, the Constitution provides that, for as long as the Class B voting interest is at least 10% of the total voting interest in Tronox Limited, there must be nine directors on our board; of which the holders of Class A Shares will be entitled to vote separately to elect a certain number of directors to our board (which we refer to as Class A Directors), and the holders of Class B Shares will be entitled to vote separately to elect a certain number of directors to our board (which we refer to as Class B Directors). If the Class B voting interest is greater than or equal to 20% but less than 30%, our board of directors will consist of seven Class A Directors and two Class B Directors. If the Class B voting interest is greater than or equal to 10% but less than 20%, our board will consist of eight Class A Directors and one Class B Director.

The Constitution also provides that, subject to certain limitations, for as long as the Class B voting interest is at least 20%, a separate vote by holders of Class A Shares and Class B Shares is required to approve certain types of merger or similar transactions that will result in a change in control or a sale of all or substantially all of our assets or any reorganization or transaction that does not treat Class A and Class B Shares equally.

Under the terms of the Shareholder’s Deed entered into upon completion of the Exxaro Transaction, Exxaro has agreed not to acquire any voting shares of Tronox Limited if, following such acquisition, Exxaro will have a voting interest in Tronox Limited of 50% or more unless Exxaro brings any proposal to make such an acquisition to the board of directors of Tronox Limited on a confidential basis. In the event an agreement regarding the proposal is not reached, Exxaro is permitted to make a takeover offer for all the shares of Tronox Limited not held by affiliates of Exxaro provided that binding acceptances are received from a majority of the shares not held by affiliates of Exxaro. Additionally, Exxaro is not contractually obligated to maintain its 26% share ownership in our South African subsidiaries. Although Exxaro is required to comply with applicable law and our constituent documents (including our Shareholders’ Agreement which sets forth the requirements by which Exxaro is obligated to continue to empower our two South African subsidiaries under BEE legislation), there is no assurance that Exxaro will not reduce its 26% stake in the future through a sale, disposition or other permissible transfer. Moreover, in the future, Exxaro may exchange its 26% interest in the mineral sands business for additional Class B Shares.

As a result of Exxaro’s significant ownership interest and its governance rights, Exxaro may be able to exert substantial influence over our management, operations and potential significant corporate transactions, including a change in control or the sale of all or substantially all of our assets. Exxaro’s influence may have an adverse effect on the trading price of our ordinary shares. See also Risk Factor “Risks of Cristal Transaction” for additional considerations related to ownership by Cristal of a significant minority interest in the Company upon closing of the Cristal Transaction.

Our South African operations may lose the benefit of the BEE status under South African legislation, resulting in the need to implement a remedial solution or introduce a new minority shareholder, which could negatively impact our South African operations.

BEE legislation was introduced into South Africa as a means to seek to redress the inequalities of the previous Apartheid system by requiring the inclusion of historically disadvantaged South Africans in the mainstream economy. Under BEE legislation, South African businesses are required to become “empowered”.

South African mining companies are required to comply with a “sector charter” in order to be deemed “empowered”. The South African Mining Charter specifies certain requirements that all mining companies must satisfy, including a requirement that at least 26% of the shares in such companies are held by BEE “empowered” entities. Exxaro takes the position that it is a BEE “empowered” company under the so-called “once empowered always empowered” principle that emerges from the joint reading of the original Mining Charter (promulgated in 2004) and the amendment thereto promulgated in 2010.

Exxaro retains a 26% direct ownership interest in each of Tronox KZN Sands (Pty) Ltd and Tronox Mineral Sands (Pty) Ltd in order for these two entities to comply with the requirements of the Mineral and Petroleum Resources Development Act (“MPRDA”) and the South African Mining Charter ownership requirements.

Pursuant to our Shareholders’ Agreement with Exxaro, Exxaro has agreed to maintain its direct ownership for a period of the shorter of the date on which the requirement to maintain a direct ownership stake in each of Tronox KZN Sands (Pty) Ltd and Tronox Mineral Sands (Pty) Ltd no longer applies or June 2022 (unless it transfers the direct ownership interests to another qualified buyer under the MPRDA and the Mining Charter). If either Tronox KZN Sands (Pty) Ltd or Tronox Mineral Sands (Pty) Ltd ceases to qualify under the Mining Charter, Tronox Limited and Exxaro have agreed to jointly seek a remedial solution. If Tronox Limited and Exxaro cannot successfully implement a solution and the reason for this failure is due to anything other than a change in law, then we may dispose of Exxaro’s shares in the non-qualifying company to another BEE compliant, qualifying purchaser. During any period of any non-qualification, our South African operations may be in violation of their mining or prospecting rights, as well as the requirements of the MPRDA and the South African Mining Charter, which could result in a suspension or revocation of the non-qualifying company’s mining and prospecting rights (after providing the non-compliant company with an opportunity to remedy the defect complained of) and could expose us to operating restrictions, lost business opportunities and delays in receiving further regulatory approvals for our South African operations and expansion activities. In addition, if Exxaro’s direct ownership in Tronox KZN Sands (Pty) Ltd and Tronox Mineral Sands (Pty) Ltd is sold to another purchaser, we could be required to share control of our South African operations with a minority shareholder, which may impact our operational and financial flexibility and could impact profitability, expansion opportunities and our results of operations.

There are two concurrent legal challenges in South Africa that could be material to us. First, the question of whether the “once empowered always empowered” principle applies in the mining industry in South Africa is subject to current litigation between the South Africa Chamber of Mines (an industry body that represents approximately 90% of the South African Mining Industry) and the South African Department of Mineral Resources. The “once empowered always empowered” principle asserts that a South African company that has had the requisite shareholding base consisting of historically disadvantaged South Africans for a minimum period of ten years will always qualify as an “empowered” entity. In the mining sector, the requisite shareholding base is 26%. An adverse outcome in connection with such litigation could adversely affect our business, financial condition and results of operations.

Second, on June 15, 2017, the Department of Mineral Resources issued a substantially revised South African Mining Charter. The revised charter sets forth new requirements with regard to continuing ownership of mining rights by BEE entities, the form and percentage of that ownership by BEE entities, procurement from BEE compliant entities, race and gender ownership and employment quotas, and workers’ housing and living conditions. The new charter was immediately challenged by the Chamber of Mines. As a result of such legal challenge, the application of the new charter has been consensually suspended pending the conclusion of the legal process. We are uncertain as to whether the new charter will be ultimately implemented in its current form, but a new mining charter with stricter requirements similar to those described above could adversely affect our business, financial condition or results of operations.

Our ore resources and reserve estimates are based on a number of assumptions, including mining and recovery factors, future cash costs of production and ore demand and pricing. As a result, ore resources and reserve quantities actually produced may differ from current estimates.

The mineral resource and reserve estimates are estimates of the quantity and ore grades in our mines based on the interpretation of geological data obtained from drill holes and other sampling techniques, as well as from feasibility studies. The accuracy of these estimates is dependent on the assumptions and judgments made in interpreting the geological data. The assessment of geographical characteristics, such as location, quantity, quality, continuity of geology and grade, is made with varying degrees of confidence in accordance with

established guidelines and standards. We use various exploration techniques, including geophysical surveys and sampling through drilling and trenching, to investigate resources and implement applicable quality assurance and quality control criteria to ensure that data is representative. Our mineral reserves represent the amount of ore that we believe can be economically mined and processed, and are estimated based on a number of factors, which have been stated in accordance with SEC Industry Guide 7 (“Industry Guide 7”), the South African Code for Reporting of Exploration Results, Mineral Resources and Mineral Reserves 2007 version, as amended 2009 (SAMREC) and the Australian code for Reporting of Exploration Results, Mineral Resources the Joint Ore Reserves Committee Code (2012) (JORC).

There is significant uncertainty in any mineral reserve or mineral resource estimate. Factors that are beyond our control, such as the ability to secure mineral rights, the sufficiency of mineralization to support mining and beneficiation practices and the suitability of the market may significantly impact mineral resource and reserve estimates. The actual deposits encountered and the economic viability of mining a deposit may differ materially from our estimates. Since these mineral resources and reserves are estimates based on assumptions related to factors discussed above, we may revise these estimates in the future as we become aware of new developments. To maintain TiO₂ feedstock production beyond the expected lives of our existing mines or to increase production materially above projected levels, we will need to access additional reserves through exploration or discovery.

If we are unable to innovate and successfully introduce new products, or new technologies or processes reduce the demand for our products or the price at which we can sell products, our profitability could be adversely affected.

Our industries and the end-use markets into which we sell our products experience periodic technological change and product improvement. Our future growth will depend on our ability to gauge the direction of commercial and technological progress in key end-use markets and on our ability to fund and successfully develop, manufacture and market products in such changing end-use markets. We must continue to identify, develop and market innovative products or enhance existing products on a timely basis to maintain our profit margins and our competitive position. We may be unable to develop new products or technology, either alone or with third parties, or license intellectual property rights from third parties on a commercially competitive basis. If we fail to keep pace with the evolving technological innovations in our end-use markets on a competitive basis, our financial condition and results of operations could be adversely affected.

In addition, new technologies or processes have the potential to replace or provide lower-cost alternatives to our products, such as new processes that reduce TiO₂ in consumer products or the use of chloride slag in the production of TiO₂, which could result in TiO₂ producers using less chloride slag, or to reduce the need for TiO₂ in consumer products, which could depress the demand and pricing for TiO₂. We cannot predict whether technological innovations will, in the future, result in a lower demand for our products or affect the competitiveness of our business. We may be required to invest significant resources to adapt to changing technologies, markets and competitive environments.

We are subject to many environmental, health and safety regulations that may result in unanticipated costs or liabilities, which could reduce our profitability.

Our operations and production facilities are subject to extensive environmental and health and safety laws and regulations at national, international and local levels in numerous jurisdictions relating to use of natural resources, pollution, protection of the environment, mine site remediation, transporting and storing raw materials and finished products, and storing and disposing of hazardous wastes among other materials. Such laws include, in the U.S., the Clean Air Act and the Clean Water Act, protecting of air and water resources, the Toxic Substances Control Act (TSCA), and in the EU, the Registration, Evaluation, Authorization and Restrictions of Chemicals (“REACH”), REACH regulation, requiring registration of chemicals in commerce and reporting of potential known adverse effects, and numerous other local, state and federal laws and regulations governing materials transport and packaging. Analogous regimes exist in other parts of the world, including Australia and China and there are rules to conform chemical labeling in accordance with the globally harmonized system. Additional new laws and regulations may be enacted or adopted by various regulatory agencies globally. For example, TSCA reform was enacted in June 2016, and the U.S. EPA is in the process of developing new chemical control regulations.

The costs of compliance with the extensive environmental, health and safety laws and regulations or the inability to obtain, update or renew permits required for operation or expansion of our business could reduce our

profitability or otherwise adversely affect our business. If we fail to comply with the conditions of our permits governing the production and management of regulated materials, mineral sands mining licenses or leases or the provisions of the applicable U.S., South African or Australian law, these permits, mining licenses or leases and mining rights could be canceled or suspended, and we could be prevented from obtaining new mining and prospecting rights, which could materially and adversely affect our business, operating results and financial condition. Additionally, we could incur substantial costs, including fines, damages, criminal or civil sanctions and remediation costs, or experience interruptions in our operations, for violations arising under these laws and regulations. In the event of a catastrophic incident involving any of the raw materials we use, or chemicals or mineral products we produce, we could incur material costs as a result of addressing the consequences of such event.

Changes to existing laws governing operations, especially changes in laws relating to transportation of mineral resources, the treatment of land and infrastructure, contaminated land, the remediation of mines, tax royalties, exchange control restrictions, environmental remediation, mineral rights, ownership of mining assets, or the rights to prospect and mine may have a material adverse effect on our future business operations and financial performance. There is risk that onerous conditions may be attached to authorizations in the form of mining rights, water-use licenses, miscellaneous licenses and environmental approvals, or that the grant of these approvals may be delayed or not granted.

Our current operations involve the production and management of regulated materials that are subject to various environmental laws and regulations and are dependent on obtaining and the periodic renewal of permits from various governmental agencies. The inability to obtain, update or renew permits related to the operation of our businesses, or the costs required in order to comply with permit standards, could have a material adverse effect on us.

Moreover, certain environmental laws impose joint and several and/or strict liability for costs to clean up and restore sites where pollutants have been disposed or otherwise spilled or released. We are currently addressing certain areas of known contamination on our own properties, none of which we presently anticipate will result in any material costs or adverse impacts on our business or operations. However, we cannot be certain that we will not incur significant costs and liabilities for remediation or damage to property, natural resources or persons as a result of spills or releases from our operations or those of a third party.

The classification of TiO2 as a Category 2 Carcinogen in the European Union could result in more stringent regulatory control with respect to TiO2.

In May 2016, France’s competent authority under the EU’s REACH regulation submitted a proposal to the European Chemicals Agency (“ECHA”) that would classify TiO₂ as carcinogenic in humans by inhalation. The Company together with other companies and trade associations representing the TiO₂ industry and industries consuming our products, submitted comments opposing the classification, based on evidence from epidemiological and other scientific studies. On October 12, 2017, ECHA’s Committee for Risk Assessment (“RAC”) released a written opinion dated September 14, 2017 stating that based on the scientific evidence it reviewed, there is sufficient grounds to classify TiO₂ under the EU’s Classification, Labelling and Packaging Regulation (“CLP”) as a Category 2 Carcinogen, but only with a hazard statement describing the risk by inhalation. The European Commission will review the RAC’s formal recommendation to determine what regulatory measures, if any, should be taken. If the European Commission decides to adopt this classification, it could require that products manufactured with TiO₂ be classified as containing carcinogenic materials, which could impact our business by inhibiting the marketing of products containing TiO₂ to consumers, and subject our manufacturing operations to new regulations that could increase costs. Any classification, use restriction or authorized requirement for use imposed by the ECHA could have additional effects under other EU laws (e.g., those affecting medical and pharmaceutical applications, cosmetics, food packaging and food additives) and/or trigger heightened regulatory scrutiny in countries and local jurisdictions outside the EU based on health and safety grounds. It is also possible that heightened regulatory scrutiny would lead to claims by consumers or those involved in the production of such products alleging adverse health impacts.

Our dependence on burning natural gas to generate electrical energy and steam and our manufacturing practices that release CO₂ to the atmosphere could mean that governmental initiatives to limit the emission of GHG could have an adverse effect in the future on our costs and therefore our results of operations.

Our U.S.-based operations are also subject to EPA’s regulations regarding GHG emissions and, depending upon the nature and scope of any future regulations, could become subject to additional costs or limitations. Current requirements include an obligation to monitor and report the GHG emissions from our facilities and to comply with the Clean Air Act’s Prevention of Significant Deterioration requirements in connection with any new or modified major sources of GHG emissions. Although we believe our operations are currently in compliance with these obligations, EPA has continued to pursue additional GHG regulations, including the currently proposed Clean Power Plan for existing sources of GHGs in the power generating sector. In addition, several states have taken legal measures to reduce emissions of GHGs, including through the planned development of GHG emission inventories and/or regional GHG “cap and trade” programs. Although our facilities are not currently subject to any such program, the expansion or further adoption of such programs in jurisdictions where we operate could impose additional compliance obligations on our facilities. As a result, such programs could result in an increase in fuel or energy costs for our businesses or, if we are directly regulated, an additional cost to acquire necessary allowances. Future costs of compliance with either the existing or future federal or State regulations could materially and adversely affect our business, operating results and financial condition.

We may be subject to litigation, the disposition of which could have a material adverse effect on our results of operations.

The nature of our operations exposes us to possible litigation claims, including disputes with competitors, customers, equipment vendors, environmental groups and other non-governmental organizations or NGOs, and providers of shipping services. Some of the lawsuits may seek fines or penalties and damages in large amounts, or seek to restrict our business activities. Because of the uncertain nature of litigation and coverage decisions, we cannot predict the outcome of these matters or whether insurance claims may mitigate any damages to us. Litigation is very costly, and the costs associated with prosecuting and defending litigation matters could have a material adverse effect on our results of operations and financial condition.

Expansion or improvement of our existing facilities may not result in revenue increases and will be subject to regulatory, environmental, political, legal and economic risks, which could adversely affect our results of operations and financial condition.

One of the ways we may grow our business is through the expansion or improvement of our existing facilities. The construction of additions or modifications to our existing facilities involve numerous regulatory, environmental, political, legal and economic uncertainties that are beyond our control. Such expansion or improvement projects may also require the expenditure of significant amounts of capital, and financing may not be available on economically acceptable terms or at all. If we undertake these projects, they may not be completed on schedule, at the budgeted cost, or at all. Moreover, our revenue may not increase immediately upon the expenditure of funds on a particular project. As a result, we may not be able to realize our expected investment return, which could adversely affect our results of operations and financial condition.

We compete with other mining and chemical businesses for key human resources in the countries in which we operate, and our business will suffer if we are unable to hire highly skilled employees or if our key officers or employees discontinue employment with us.

We compete with other chemical and mining companies, and other companies generally, in the countries in which we operate to attract and retain key human resources at all levels with the appropriate technical skills and operating and managerial experience necessary to continue operating and expanding our businesses. These operations use modern techniques and equipment and accordingly require various types of skilled workers. The success of our business will be materially dependent upon the skills, experience and efforts of our key officers and skilled employees. Competition for skilled employees is particularly severe in Western Australia and at Namakwa Sands, which may cost us in terms of higher labor costs or reduced productivity. As a result, we may not be able to attract and retain skilled and experienced employees. Should we lose any of our key personnel or fail to attract and retain key qualified personnel or other skilled employees, our business may be harmed and our operational results and financial condition could be affected.

There may be difficulty in effecting service of legal process and enforcing judgments against us and our directors and management.

We are registered under the laws of Western Australia, Australia, and substantial portions of our assets are located outside of the U.S. In addition, certain members of our board of directors reside outside the U.S. As a result, it may be difficult for investors to effect service of process within the U.S. upon Tronox Limited or such other persons residing outside the U.S., or to enforce judgments outside the U.S. obtained against such persons in U.S. courts in any action, including actions predicated upon the civil liability provisions of the U.S. federal securities laws. In addition, it may be difficult for investors to enforce rights predicated upon the U.S. federal securities laws in original actions brought in courts in jurisdictions located outside the United States.

Third parties may develop new intellectual property rights for processes and/or products that we would want to use, but would be unable to do so; or, third parties may claim that the products we make or the processes that we use infringe their intellectual property rights, which may cause us to pay unexpected litigation costs or damages or prevent us from making, using or selling products we make or require alteration of the processes we use.

Results of our operations may also be negatively impacted if a competitor develops or has the right to use intellectual property rights for new processes or products and we cannot obtain similar rights on favorable terms or are unable to independently develop non-infringing competitive alternatives.

Although there are currently no known pending or threatened proceedings or claims that are material relating to alleged infringement, misappropriation or violation of the intellectual property rights of others, we may be subject to legal proceedings and claims in the future in which third parties allege that their patents or other intellectual property rights are infringed, misappropriated or otherwise violated by us or our products or processes. In the event that any such infringement, misappropriation or violation of the intellectual property rights of others is found, we may need to obtain licenses from those parties or substantially re-engineer our products or processes to avoid such infringement, misappropriation or violation. We might not be able to obtain the necessary licenses on acceptable terms or be able to re-engineer our products or processes successfully. Moreover, if we are found by a court of law to infringe, misappropriate or otherwise violate the intellectual property rights of others, we could be required to pay substantial damages or be enjoined from making, using or selling the infringing products or technology. We also could be enjoined from making, using or selling the allegedly infringing products or technology pending the final outcome of the suit. Any of the foregoing could adversely affect our financial condition and results of operations.

If our intellectual property were compromised or copied by competitors, or if competitors were to develop similar intellectual property independently, our results of operations could be negatively affected.

Our success depends to a significant degree upon our ability to protect and preserve our intellectual property rights. Although we own and have applied for numerous patents and trademarks throughout the world, we may have to rely on judicial enforcement of our patents and other proprietary rights. Our patents and other intellectual property rights may be challenged, invalidated, circumvented, and rendered unenforceable or otherwise compromised. A failure to protect, defend or enforce our intellectual property could have an adverse effect on our financial condition and results of operations.

We also rely upon unpatented proprietary technology, expertise and other trade secrets to maintain our competitive position. While we maintain policies to enter into confidentiality agreements with our employees and third parties to protect our proprietary expertise and other trade secrets, these agreements may not be enforceable or, even if legally enforceable, we may not have adequate remedies for breaches of such agreements. We also may not be able to readily detect breaches of such agreements. The failure of our patents or confidentiality agreements to protect our proprietary technology, expertise or trade secrets could result in significantly lower revenues, reduced profit margins or loss of market share.

In addition, we may be unable to determine when third parties are using our intellectual property rights without our authorization. We also have licensed certain of our intellectual property rights to third parties, and we cannot be certain that our licensees are using our intellectual property only as authorized by the applicable license agreement. The undetected or unremedied unauthorized use of our intellectual property rights or the legitimate development or acquisition of intellectual property related to our industry by third parties could reduce or eliminate any competitive advantage we have as a result of our intellectual property, adversely affecting our

financial condition and results of operations. If we must take legal action to protect, defend or enforce our intellectual property rights, any suits or proceedings could result in significant costs and diversion of our resources and our management’s attention, and we may not prevail in any such suits or proceedings. A failure to protect, defend or enforce our intellectual property rights could have an adverse effect on our financial condition and results of operations.

If our intangible assets or other long-lived assets become impaired, we may be required to record a significant noncash charge to earnings.

We have a significant amount of intangible assets and other long-lived assets on our consolidated balance sheets. Under generally accepted accounting principles in the United States (“U.S. GAAP”), we review our intangible assets and other long-lived assets for impairment when events or changes in circumstances indicate the carrying value may not be recoverable. Factors that may be considered a change in circumstances, indicating that the carrying value of our intangible assets and other long-lived assets may not be recoverable, include, but are not limited to, a significant decline in share price and market capitalization, changes in the industries in which we operate, particularly the impact of a downturn in the global economy, as well as competition or other factors leading to reduction in expected long-term sales or profitability. We may be required to record a significant noncash charge in our financial statements during the period in which any impairment of our intangible assets and other long-lived assets is determined, negatively impacting our results of operations.

Our ability to use NOLs to offset future income may be limited.

Our ability to use any net operating losses (“NOLs”) and section 163(j) interest expense carryforwards (which are now subject to Section 382 limitations per the new recently enacted U.S. major tax reform legislation) generated by it could be substantially limited if we were to experience an “ownership change” as defined under Section 382 of the Code. In general, an “ownership change” would occur if our “5-percent shareholders,” as defined under Section 382 of the Code, including certain groups of persons treated as “5-percent shareholders,” collectively increased their ownership in us by more than 50 percentage points over a rolling three-year period. The Exxaro Share Transaction and the issuance of the Class A ordinary shares to Cristal Netherlands in connection with the Cristal Transaction may result in an “ownership change” for U.S. federal and applicable state income tax purposes. Should Exxaro decide to sell a significant portion of their remaining ownership in the future, an “ownership change” will most likely occur. A corporation that experiences an ownership change will generally be subject to an annual limitation on the use of its pre-ownership change NOLs (and certain other losses and/or credits) equal to the equity value of the corporation immediately before the ownership change, multiplied by the long-term tax-exempt rate for the month in which the ownership change occurs. Although our NOLs continue to have full valuation allowances, such a limitation could, for any given year, have the effect of increasing the amount of our U.S. federal income tax liability, which would negatively impact our financial condition and the amount of after-tax cash available for distribution to holders of our ordinary shares.

We could be subject to changes in tax rates, adoption of new tax laws or additional tax liabilities.

We are subject to taxation in the United States, Australia and various other foreign jurisdictions. Our future effective tax rate could be affected by changes in statutory rates and other legislative changes, or changes in determinations regarding the jurisdictions in which we are subject to tax. From time to time, the U.S. federal, state and local and foreign governments make substantive changes to tax rules and their application, which could result in higher corporate taxes than would be incurred under existing tax law and could have an adverse effect on our results of operations or financial condition. From time to time, we are also subject to tax audits by various taxing authorities, including the Internal Revenue Service in the United States and the Australian Tax Office in Australia. Although we believe our tax positions are appropriate, the final determination of any tax audits could be materially different from our income tax provisions, accruals and reserves and any such unfavorable outcome from a tax audit could have a material adverse effect on our results of operations or financial condition.

Our results of operations and financial condition could be seriously impacted by security breaches, including cybersecurity incidents.

Failure to effectively prevent, detect and recover from security breaches, including attacks on information technology and infrastructure by hackers; viruses; breaches due to employee error or actions; or other disruptions could result in misuse of our assets, business disruptions, loss of property including trade secrets and confidential

business information, legal claims or proceedings, reporting errors, processing inefficiencies, negative media attention, loss of sales and interference with regulatory compliance. We have determined that such attacks could result in unauthorized parties gaining access to at least certain confidential business information. However, to date, we have not experienced any material financial impact, changes in the competitive environment or business operations that we attribute to these attacks. Although management does not believe that we have experienced any material losses to date related to security breaches, including cybersecurity incidents, there can be no assurance that we will not suffer such losses in the future. We actively manage the risks within our control that could lead to business disruptions and security breaches. As these threats continue to evolve, particularly around cybersecurity, we may be required to expend significant resources to enhance our control environment, processes, practices and other protective measures. Despite these efforts, such events could materially adversely affect our business, financial condition or results of operations.

We may need additional capital in the future and may not be able to obtain it on favorable terms.

Our businesses are capital intensive, and our success depends to a significant degree on our ability to develop and market innovative products and to update our facilities and process technology. We may require additional capital in the future to finance our growth and development, implement further marketing and sales activities, fund ongoing research and development activities and meet general working capital needs. Our capital requirements will depend on many factors, including acceptance of, and demand for our products, the extent to which we invest in new technology and research and development projects, and the status and timing of these developments, as well as general availability of capital from debt and/or equity markets. Additional financing may not be available when needed on terms favorable to us, or at all. Further, the terms of our debt may limit our ability to incur additional indebtedness or issue additional equity. If we are unable to obtain adequate funds on acceptable terms, we may be unable to develop or enhance our products, take advantage of future opportunities or respond to competitive pressures, which could harm our results of operations, financial condition and business prospects.

There are no unresolved comments that were received from the SEC staff.

Below are our primary offices and facilities at December 31, 2017. We believe our properties are in good operating condition, and are well maintained. Pursuant to separate financing agreements, substantially all of our U.S. properties are pledged or encumbered to support or otherwise provide security for our indebtedness.

Corporate

Our corporate offices consisted of the following:

TiO₂ Segment

Mining Operations

Our KZN Sands operations consist of the Fairbreeze mine, a concentration plant, a mineral separation plant and a smelter complex with two furnaces.

Our Namakwa Sands operations include the Namakwa Sands mine, a primary concentration plant, a secondary concentration plant, a separation plant, and a smelter complex with two furnaces.

Our Western Australia operations consist of the Cooljarloo dredge mine and floating heavy mineral concentration plant and the Chandala metallurgical complex, which includes a mineral separation plant and a synthetic rutile plant.

Pigment Operations

Our owned office at 3301 NW 150th Street in Oklahoma City, Oklahoma is used for our pigment management operations and research and development.

Our pigment facilities consist of the physical assets necessary and appropriate to produce, distribute and supply our TiO₂, and consist mainly of manufacturing and distribution facilities. The following table summarizes our TiO₂ production facilities and production facilities and capacity (in gross MT per year), by location:

Electrolytic Operations

We have an electrolytic manufacturing and distribution facility as follows:

Mineral Properties

As of December 31, 2017, we owned mining rights to ore reserves described herein at our three mineral sands operations in South Africa and Western Australia, where we mine heavy mineral sands to supply titanium mineral feedstock to our TiO₂ manufacturing business and co- products for external sale.

Each mining operation maintains a Life-of-Mine Plan (“LOMP”), which is a strategic business plan for short and long-term mine planning and decision-making. A LOMP is based, in part, on estimated mineral reserves and can serve as a road map for mine development and planning, resource development, production targets, marketing, and financial management.

Reporting of Ore Reserve and Mineral Resources

U.S. registrants are required to report ore reserves under Industry Guide 7, “Description of Property by Issuers Engaged or To Be Engaged in Significant Mining Operations”. Industry Guide 7 requires that sufficient technical and economic studies have been completed to reasonably assure economic extraction of the declared reserves, based on the parameters and assumptions current to the end of the reporting period.

The mineral reserve estimates are based on detailed geological, geotechnical, mine engineering and mineral processing inputs, into financial models developed and reviewed by Tronox employees and management in South Africa, Australia and the U.S., including senior personnel who have been involved with each of our active mining and mineral processing operations since the operations commenced.

Our heavy minerals reserves estimates have evolved from years of in-house reserve estimates, reconciliations and revised economic analyses and are routinely reviewed by third party consultants to comply with Industry Guide 7. Mineral reserve estimates are developed using conventional methods used in the mining industry, guided by the mineral resource reporting standards of the South African Code for the Reporting of Exploration Results, Mineral Resources and Mineral Reserves, also known as the SAMREC code (“SAMREC”), or the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves, also known as the JORC code (“JORC”). Definitions and determination of Proven and Probable Reserve estimates under Industry Guide 7 are equivalent in all material respects to the ore reserve classifications under SAMREC and JORC, both internationally recognized guidelines for disclosures of mineral resources and reserves designed to ensure transparency, data validity and standardized methodologies for estimating the size and grades of mineral deposits. Both SAMREC and JORC require technical resource reports, written or supervised by a professional certified as a Competent Person by one or more of the organizations responsible for development and maintenance of their respective reporting standards. Annual Mineral Resource and Ore Reserve Statements are prepared by experienced Tronox resource professionals for each of our three heavy mineral sand operating units, and reviewed by qualified experts who are certified by the professional organizations sanctioned under their respective country codes for disclosures of mineral resources and reserves.

Our heavy mineral reserve estimates under SAMREC and JORC follow similar prescribed methodologies to classify portions of a mineral deposit as measured, indicated or inferred resources according to the level of geological confidence. Portions of those categories determined to be economic by more rigorous modeling at the time of the evaluation may be upgraded to “proved” or “probable” ore reserves.

Despite differences between Industry Guide 7 and SAMREC or JORC the methodologies for determination of mineral reserves, or “ore reserves,” and definitions of reserve classifications are essentially equivalent. The Proven and Probable heavy mineral (“HM”) reserves stated in the tables in this report are unmodified from the Proved and Probable HM reserves declared in the Mineral Resources and Reserves Statements submitted by our South African and Australian operations. Under Industry Guide 7, SAMREC and JORC, Proven (or “Proved”) reserves have a higher confidence level than Probable reserves.

Mining and Mineral Tenure

Industry Guide 7 requires us to describe our rights to access and mine the minerals we report as ore reserves and to disclose any change in mineral tenure of material significance. Our heavy mineral exploration and mining activities in South Africa and Australia are regulated by the South African Department of Mineral Resources and the Western Australia Department of Mines, Industry Regulation and Safety, respectively. All of our exploration and mining operations are subject to multiple levels of environmental regulatory review, that include approvals of environmental programs and public comment periods as pre-conditions to granting of

mineral tenure. The rights and regulatory framework for minerals of relevance to Tronox are generally described below, followed by additional details of our three major mineral extraction and processing operations.

Mineral Tenure - South Africa

The South African Department of Mineral Resources (“DMR”) is the regulatory administrator of mineral rights in South Africa, subject to the provisions of the Mineral and Petroleum Resources Development Act (“MPRDA”), of 2004, amended 2009. The MPRDA vests all mineral rights in South Africa in the national government and establishes conditions for the acquisition and maintenance of prospecting and mining rights. Prospecting rights are initially granted for a maximum period of five years and can be renewed once for an extension of up to three years. Mining rights are granted by the DMR, subject to approvals by the Department of Environmental Affairs (“DEA”) of an Environmental Management Program (“EMP”) and an Integrated Water and Waste Use License.

Mining rights are valid for up to 30 years and may be extended by 30-year renewals. They may be revoked if the conditions of the EMP are breached or for other contraventions of the MPRDA. Environmental permitting and compliance are co-administered by the Western Cape DEA and Development Planning (Namakwa Sands) and the KZN DEA (KZN Sands). All rights, licenses and permits for Namakwa Sands and KZN Sands are in good standing.

Through Tronox Mineral Sands (Pty) Ltd, Namakwa Sands holds mining and prospecting rights, mostly at the active mining site near Brand-se-Baai.

Tronox also controls mining and prospecting rights in KwaZulu-Natal Province, on South Africa’s Indian Ocean coast, through our majority ownership of KZN Sands. Much of the surface access rights at the Fairbreeze mine are secured through an agreement with Mondi Ltd.

Mineral Tenure - Australia

Mining tenements in Western Australia include Prospecting Licenses, Exploration Licenses, Retention Licenses, Mining Leases, and other instruments set forth by the Western Australia Mining Act of 1978. Mining activities are governed by various laws and regulations administered by State and National agencies, particularly the Western Australia Department of Mines, Industry Regulation and Safety (DMIRS) and the Western Australia Department of Water and Environmental Regulation.

In Western Australia, Tronox controls mining leases, exploration and other licenses and rights. Mining and Public Environmental Review plans are approved for the Cooljarloo mine and the planned Dongara mine. Environmental Protection Agency approval of Cooljarloo West is anticipated during 2018.

Mining of the main Cooljarloo deposits are authorized by the Mineral Sands (Cooljarloo) Mining and Processing Agreement Act 1988 (WA), under Mineral Sands Agreement 268 (MSA 268), covering 9,745 hectares (24,080 acres). The remainder of our heavy mineral ore reserves are held by mining leases granted by the DMIRS. We hold 15 mining and attendant environmental approvals at the Dongara project. Three older mining leases are held at our Jurien property, the site of a former heavy mineral open pit mine operated by WMC in the 1970’s.

Mineral Sands - South Africa and Western Australia

HM sands are naturally concentrated granular minerals of high densities (conventionally above about 2.9 gm/cm3), formed by erosion, transport and concentration. Not all of the HM has commercial value, and a distinction is made between the Total Heavy Minerals (“THM”) and the portion of the THM composed of Valuable Heavy Minerals (“VHM”). VHM can be recovered at relatively low cost by gravity, magnetic and electrostatic separation techniques. In our disclosures, we express grade in terms of percentage of THM by weight in the ore, and express individual VHM as percentages of the total heavy minerals unless otherwise stated.

Our TiO₂ business explores, acquires, mines and processes HMs to produce, commercial grades of VHM co-products, and upgrades the titanium mineral, ilmenite, into high-grade feedstock for our TiO₂ manufacturing facilities. A diagram of our heavy mineral sand mining and processing — TiO₂ pigment value chain is as follows:

All of our HM mining operations extract ilmenite, a titanium-iron oxide mineral, rutile, a premium TiO₂ mineral feedstock and zircon, a zirconium silicate (ZrSiO4) mineral valuable for its application in a diverse range of industrial and construction end-uses. Leucoxene is a naturally upgraded form of ilmenite. Other heavy minerals present in our heavy mineral assemblages may have commercial value, subject to their recovery from heavy mineral concentrate (“HMC”) feed to our mineral separation plants. We recover and market staurolite, an aluminum silicate mineral used in sandblasting and other applications, at our Chandala mineral separation plant from the HMC feed from our Cooljarloo mine HMC. Other mineral constituents of potential value include garnet and monazite. Our reserve estimates are based solely upon the value of extractable and recoverable zircon, rutile, ilmenite and leucoxene.

In 2017, we mined VHM, including ilmenite, rutile, leucoxene, and zircon at three integrated operations: Namakwa Sands, Western Cape, South Africa, KZN and Tronox Northern Operations in, Western Australia. Our three TiO₂ feedstock operating centers integrate ilmenite with metallurgical beneficiation. Ilmenite is converted to synthetic rutile (SR) in our Northern Operations in Western Australia, to provide SR feedstock to our Southern Operations TiO₂ pigment manufacturing. Ilmenite is converted to titanium slag and pig iron in our integrated Namakwa and KZN smelter facilities in South Africa.

TRONOX MINERAL SAND PRODUCT CAPACITIES

Namakwa Sands, Western Cape and KZN, South Africa

Our heavy mineral sand operations in South Africa include similar material flows from integrated mine-mineral separation-smelter value chains on the west and east coasts of South Africa. Both Namakwa and KZN Sands produce smelter products of titanium slag and pig iron, plus commercial grades of zircon and high-grade titanium mineral concentrates. In the Western Cape Province, we mine the large Namakwa heavy mineral deposit at Brand-se-Baai from two open-cut shovel-and-truck dry mines, each with a dedicated primary wet concentration plant. Primary concentrate is separated into magnetic and non-magnetic fractions at a secondary concentration plant at the mine, and the secondary concentrates are further processed at a mineral separation plant (“dry mill”) 52 km south of the mine at Koekenaap. Ilmenite, rutile and zircon are transported by rail to Saldanha Bay, where ilmenite is smelted in a two-furnace complex into titanium slag and pig iron. Chloride-grade slag, slag fines, pig iron, rutile and zircon are exported from our proprietary facilities at the Saldanha Bay deep-water port, about 150 km north of Cape Town.

Reserve estimates as of December 31, 2017, in accordance with SAMREC (2009) reporting standards, are: 43.8 million tonnes in-place HM, containing about 19.6 million metric tonnes ilmenite, 4.5 million tonnes zircon, and 4.0 million tonnes rutile and leucoxene from 687 million tonnes of ore. These reserves are sufficient to sustain the current rate of mining for over 25 years without any new reserve additions.

The Namakwa heavy mineral assemblage is diverse and heterogeneous, creating challenges to efficient recovery of valuable heavy minerals. Significant amounts of low-value heavy minerals in the Namakwa HM assemblage include: garnet, pyroxene, hematite, magnetite, and kyanite. Most of the ore reserves are hosted by a complex dune sand sequence over 40 meters thick, known as the Orange Feldspathic Sand, or “OFS.”. The OFS is significantly affected by the formation of hard duricrust layers and lenses, interpreted to be a chemical precipitate of variable amounts of silicon (Si), calcium (Ca), magnesium (Mg), iron (Fe), aluminum (Al) and other constituents from alkaline groundwater. The duricrust is superposed upon HM-bearing strata and adversely affects VHM recoveries. Additional reserves are hosted at the surface by a sheet-like layer of iron oxide-stained, wind-blown sand known as the red aeolian sand (RAS). No overburden is present.

Adjustments to our geotechnical-economic modelling and a comprehensive metallurgical program have enabled division of the West and East deposits into blocks of discrete geological domains with distinctive mineralogical and processing characteristics. Our improved understanding of Namakwa ore has led to improvements in liberation and recoveries of VHM.

The KZN Sands integrated mining-processing operation consists of the Fairbreeze mine, south of the coastal town of Mtunzini, 45 kilometers SSW of Richards Bay, a Central Processing Complex (“CPC”) at Empangeni, where ilmenite is fed to a dual electric arc furnace smelter for conversion into slag and pig iron, and storage and export facilities at the port of Richards Bay. Smelter products, rutile and zircon are exported from Richards Bay. The Fairbreeze deposit is hosted by deeply weathered “Berea-type” sands which are mined using a hydraulic mining technique that was pioneered at the now-depleted Hillendale mine from 2001-2013. High-pressure water jets disaggregate the fine-grained ore sand into a slurry that is pumped to a semi-mobile primary wet plant for the production of heavy mineral concentrate. HMC is hauled by truck 40 km to the Empangeni CPC, 18 km west of Richards Bay, for separation into rutile, zircon and ilmenite. Ilmenite is fed to an adjoining two-furnace smelter for production of titanium slag and pig iron. All products are exported from Richards Bay.

The Fairbreeze deposit is hosted by a complex of strandline/paleo-dune couplets, about two kilometers inland from the modern coastline, forming an elongate ridge extending about 12 km south-southwesterly from the town of Mtunzini with a maximum width of about two kilometers. No overburden is present. Modern erosion has dissected the deposit into five discrete ore bodies, named Fairbreeze A, B, C, C-Extension and D. The Fairbreeze dune complex is part of a regional, coast-parallel corridor of terraces and dunes collectively known as the Berea Red Sand that formed along the southeastern coast of Africa from Durban to Mombasa, in response to static sea levels of the Pliocene-Pleistocene. As with all heavy mineral sand deposits, iron-titanium oxides, rutile, zircon and other minerals in the HM assemblage at Fairbreeze are inherited from their source rock provenance and modified by selective sorting during deposition. Probable source rocks for the HM are the Natal Metamorphic Province and younger rift-related basalts.

Reserve estimates for KZN as of December 31, 2017, in accordance with SAMREC (2009) reporting standards, are: 177 million tonnes ore averaging 6.2% total heavy minerals. According to the Fairbreeze LOMP, our reserves are sufficient to sustain production for over 12 years.

Tronox Western Australia

Our Cooljarloo mine and Chandala metallurgical complex are the key components of our Northern Operations in Western Australia. Since the commencement of mining in December 1989, when ore reserves were manually calculated at a 2% THM cut-off grade, to December 31, 2017, cumulative production during 28 years of continuous mining at Cooljarloo totals over 18 million tonnes HMC. At the Cooljarloo mine, approximately 170 km north of Perth, two dredges in a single pond feed an ore slurry to a floating concentrator. HMC is hauled 110 km south by truck to our Chandala metallurgical complex near Muchea, 60 km north of Perth, for the recovery of ilmenite, rutile, leucoxene and zircon. Ilmenite is upgraded at Chandala to synthetic rutile (SR), a high-TiO2 feedstock for our integrated TiO₂ pigment plant at Kwinana, south of Perth. The Kwinana pigment plant and other components of our Southern Operations in Western Australia are described in Part 1, Item 1.

Our Western Australia ore reserves of over 11.1 million tonnes of in-place total heavy minerals, including 5.8 million tonnes from Cooljarloo, 2.1 million tonnes from Cooljarloo West, and 3.2 million tonnes from Dongara, are sufficient to sustain our current value chain of HMC, multiple commercial grades of rutile, leucoxene and zircon, and SR feed to the Kwinana pigment plant for over 20 years.

Ore reserves from three-ore bodies at Cooljarloo West (Kestrel, Harrier and Woolka) will be dredge-mined as an extension to the life of our Cooljarloo mining operations. Since our 2006 acquisition of the Dongara project, 370 kilometers north of Perth, we have completed several feasibility studies and obtained all long lead-time approvals for mining of the Dongara deposits, including environmental licenses and permits.

The economic disadvantage of mining low-grade ore at Cooljarloo is offset by economies of scale, low-cost dredging, a high-quality VHM suite that constitutes nearly 80% of THM, and good processing characteristics of the ilmenite in its conversion to SR. Over our nearly three decades of operations, our professional staff in Western Australia has exploited opportunities to extract value from the integrated mine-to-pigment chain, allowing us to create one of the most efficient operations in the global mineral sands industry.

Heavy minerals at Cooljarloo and Cooljarloo West occur in multiple, NNW-trending strands and elongate tabular bodies parallel to the modern coastline. A swarm of HM bodies in the Cooljarloo district span an area 40 km NNW by a width of over 5 km, bounded on the east by the “Gingin” scarp. Shoreline and shallow off-shore HM placers accumulated on the Swan Coastal Plain during static sea levels of the Pleistocene, or “Ice Age”. Heavy minerals were derived from the granitic and gneissic “basement” of the Yilgarn craton east of the scarp and recycled from underlying Mesozoic sediments of the northern Perth Basin. Most of the economically extractible HM deposits in the Cooljarloo district are overlain by younger overburden. Shoreline HM placers of slightly younger ages than Cooljarloo are also overlain by variable overburden at Jurien and Dongara.

In 2017, 23 million tonnes of ore were mined from Cooljarloo ore reserves. New drilling, reevaluation of certain reserves and resources, and optimizations of the mine model resulted in a net decrease of our reserve base by 10 million tonnes. Further reviews of ore exploitation options are planned during 2018.

Our total heavy mineral reserves at December 31, 2017 in Western Australia, including Cooljarloo, Cooljarloo West and Dongara are 481 million tonnes of ore containing 11.1 million tonnes of heavy minerals, representing a 4.3% decrease in THM from our year-end 2016 estimate. Included in the in-ground heavy mineral reserves are approximately 6.5 million tonnes ilmenite, 1.2 million tonnes zircon, and 900,000 combined tonnes of rutile and leucoxene.

Our 2017 combined production from the three HM mining-processing centers are shown in the table below.

Tronox 2017 Production of TiO₂, Feedstock and Co-Products

Our South African and Australian mineral sands resource development strategy is guided by an in-house a resource development group comprised of key personnel with complementary expertise and experience. Our primary goal is to assure a long-term supply of titanium feedstocks to our vertically-integrated TiO₂ value chain.

We believe our combined integrated titanium mining-to-titanium dioxide operations constitute the largest fully-integrated TiO₂ value chain in the world, and the TiO₂ business of Tronox is the world’s only mining-mineral processing chain with production of both titanium slag and synthetic rutile. Our captive slag from South Africa, synthetic rutile from Western Australia, and natural rutile from our three operations satisfy over 100% of our TiO₂ feedstock requirements. Excess TiO₂ feedstock can be marketed externally or stockpiled for future internal consumption.

Natural rutile, synthetic rutile, and titanium slag are to a certain extent fungible as titanium feedstocks for chloride pigment production. However, each titanium mineral and beneficiated mineral product has a discreet commercial market, and the commercial value of titanium feedstock is a function not only of TiO₂ content and supply and demand balances, but also particle size, trace element geochemistry, logistics and other factors. The global TiO₂ industry is a valued-added supply chain, with final product prices for TiO₂ pigment, typically higher than that of ilmenite, the base load titanium mineral the industry. The revenue assumptions for titanium feedstocks applied in the determination of heavy mineral ore reserve estimates are based on our sales contracts, pricing assumptions in our integrated TiO₂ value chain, and market intelligence.

Our LOMP and reserve estimates are derived from detailed techno-economic models created from extensive geological, mining and analytical databases, and optimized with respect to anticipated revenues, and costs. Cost assumptions are developed from our extensive experience and include mining parameters, processing recoveries, foreign exchange, and rehabilitation. Each of our operations reconcile predicted mining and processing metrics with actual production and recovery data on a monthly basis. Our models are updated as necessary and used to determine the ultimate ore boundaries, rather than a simple grade cut-off. To satisfy the disclosure rules in Industry Guide 7, our nominal cut-off grades are: 0.2% zircon at Namakwa Sands; 1.5% ilmenite at KZN Sands; and 1.3% THM (approximately 1% VHM) at Tronox Northern Operations, Western Australia.

Heavy Mineral Reserves

Ore reserves are those portions of mineral deposits that are economically and legally exploitable at December 31, 2017. All of our heavy mineral reserves are reported on the basis of in-place, economically extractable ore determined from comprehensive geological, mining and economic models and include dilution and mining losses. Ore is classified as either Proven or Probable, based on the level of confidence in the reserve estimates and cost/revenue assumptions.

The following table summarizes our heavy mineral ore reserves and their contained in situ THM and heavy mineral assemblages as of December 31, 2017. Increases or decreases in our reserves estimates from December 31, 2016 to December 31, 2017 are indicated as a percent of in-place THM reserves.

Abbreviations and definitions:

MT —metric tonnes (1 metric ton = 1.10231 short tons)

Ore Reserves —the portions of our inventories of mineralized material inclusive of dilution, determined to be economically and legally exploitable as of December 31, 2017, classified as either Probable Reserves or Proven Reserves, based on level of confidence.

THM — total heavy minerals, with densities >2.9 g/cm3 regardless of commercial value

VHM — valuable heavy minerals, including Ilmenite, Rutile, Leucoxene & Zircon reported as percentage of THM.

Change from 2016 — Increase or decrease of estimated in-place THM in reserves, expressed as + or – percent change from 2016.

Key Assumptions — economic viability is determined by techno-economic modeling constructed from geological, analytical and geotechnical databases, mining parameters, metallurgical recovery assumptions, pit optimizations, and economic assumptions based on current operating costs, foreign exchange rates, and projected product sales prices at time of production. Historical sales prices by themselves are unreliable predictors of future prices, and our revenue forecasts are based on multiple factors, including market research, existing private contracts, and external consultant opinions. Nominal cut-off grades are 0.2% zircon at Namakwa Sands, 1.5% ilmenite at KZN Sands, and 1.3% THM (1% VHM) at Cooljarloo and Cooljarloo West.

Our forecast production of commercial-quality titanium mineral and zircon concentrates from reserves is based on mining rates, the heavy mineral assemblage and grade distributions, our experience in valuable mineral recoveries, and other inputs to our techno-economic models. Mining recoveries are typically 99-100%. Metallurgical recoveries vary widely as a function of mineral characteristics. Processing efficiencies are affected by many factors, including mineralogical diversity, grain size, morphology and surface coatings of the heavy minerals. To a practical extent, mineral separation technology is customized for the physical characteristics of each mining operation. Cumulative recovery factors for VHM in our mine concentrates, inclusive of HM concentration at the mine and production of mineral concentrates at the separation plant, are generally in the range of 70% to 95%. Actual recoveries are applied in our techno-economic models to determine economic viability. Unrecovered VHM in certain dry mill tailings streams are stockpiled, but their hypothetical value is not considered in our revenue assumptions.

Mineral reserve estimates, life-of mine projections, and revenue assumptions are inherently forward-looking and subject to market conditions, uncertainties and unanticipated events beyond our control. Our revenue assumptions are anchored by in-house and external forecasts of the prevailing sales prices for our mineral concentrates and beneficiated mineral products at the time of their anticipated sale, or consumption in our vertically-integrated TiO₂ supply chain. In our experience, historical prices for commercial mineral concentrates and titanium feedstocks are not by themselves a reliable guide to future prices.

The following table compares the heavy mineral reserves reported for the three years ending December 31, 2017, 2016 and 2015:

3-Year Reserves (Mt In-Place THM)

The above three -year total heavy mineral reserves for the Tronox Mineral Sands Division are expressed as millions of MT in-place THM for the years ended 2015 through 2017. LOMPs for each operation may include some non-reserve mineralized material not currently classified as reserves under SAMREC and JORC the guidelines, and the mine lives in the LOMPs may be longer than what can be supported by the reserves. Our LOMP’s and ore reserves support operational lives of over 25 years at Namakwa Sands, over 12 years at KZN Sands, and over 20 years at our Western Australia Northern Operations.

Information required by this item is incorporated herein by reference to the section captioned “Notes to Consolidated Financial Statements, Note 17- Commitments and Contingencies” of this Form 10-K.

Information regarding mine safety and other regulatory actions at our mine in Green River, Wyoming, operated in conjunction with the Alkali business (which was sold on September 1, 2017), is included in Exhibit 95 of this Form 10-K.

PART II

Market for our Class A ordinary shares

Our Class A Shares began trading on the New York Stock Exchange on June 18, 2012 under the symbol “TROX.” There is no public trading market for our Class B Shares, which are held by Exxaro.

The following table sets forth, for the fiscal quarters indicated, the high and low sales prices per share of our Class A Shares, and the dividends declared during 2017 and 2016.

Holders of Record

As of January 26, 2018, there were approximately 426 holders of record of Class A Shares. This does not include the shareholders that held shares of our Class A Shares in a nominee or “street-name” accounts through banks or broker-dealers. See Item 12, Security Ownership of Certain Beneficial Owners and Management and Related Shareholder Matters.

The following table sets forth selected historical financial data for the periods indicated. In connection with the Alkali Sale, we recognized a loss of $233 million, net of tax, during the year ended December 31, 2017. As a result of the Alkali Sale, Alkali’s results of operations have been reported as discontinued operations (see Note 3 of notes to consolidated financial statements for additional information). This information should be read in conjunction with our Consolidated Financial Statements (including the notes thereto) and our “Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

The following discussion should be read in conjunction with Tronox Limited’s consolidated financial statements and the related notes included elsewhere in this Annual Report on Form 10-K. This discussion and other sections in this Annual Report on Form 10-K contain forward-looking statements, within the meaning of the Private Securities Litigation Reform Act of 1995, that involve risks and uncertainties, and actual results could differ materially from those discussed in the forward-looking statements as a result of numerous factors. Forward-looking statements provide current expectations of future events based on certain assumptions and include any statement that does not directly relate to any historical or current fact. Forward-looking statements also can be identified by words such as “future,” “anticipates,” “believes,” “estimates,” “expects,” “intends,” “plans,” “predicts,” “will,” “would,” “could,” “can,” “may,” and similar terms. There are important factors that could cause our actual results, level of activity, performance or achievements to differ materially from the results, level of activity, performance or achievements expressed or implied by the forward-looking statements. In particular, you should consider the numerous risks and uncertainties outlined in Item 1A. “Risk Factors.”

This Management’s Discussion and Analysis of Financial Condition and Results of Operations contains certain financial measures, in particular the presentation of earnings before interest, taxes, depreciation and amortization (“EBITDA”) and Adjusted EBITDA, which are not presented in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”). We are presenting these non-U.S. GAAP financial measures because we believe they provide us and readers of this Form 10-K with additional insight into our operational performance relative to earlier periods and relative to our competitors. We do not intend for these non-U.S. GAAP financial measures to be a substitute for any U.S. GAAP financial information. Readers of these statements should use these non-U.S. GAAP financial measures only in conjunction with the comparable U.S. GAAP financial measures. A reconciliation of net income (loss) to EBITDA and Adjusted EBITDA is also provided herein.

Executive Overview

We are a global leader in the production and marketing of titanium bearing mineral sands and titanium dioxide (“TiO₂”) pigment.

We operate three TiO₂ pigment facilities at the following locations: Hamilton, Mississippi; Botlek, the Netherlands; and Kwinana, Western Australia, representing an aggregate annual TiO₂ production capacity of approximately 465,000 metric tons (“MT”). TiO₂ is used extensively in the manufacture of paint and other coatings, plastics and paper, and in a wide range of other applications, including inks, fibers, rubber, food, cosmetics, and pharmaceuticals. Moreover, it is a critical component of everyday consumer applications due to its superior ability to cover or mask other materials effectively and efficiently relative to alternative white pigments and extenders. TiO₂ is considered a quality of life product, and some research indicates that consumption generally increases as disposable income increases. At present, it is our belief that there is no effective mineral substitute for TiO₂ because no other white pigment has the physical properties for achieving comparable opacity and brightness, or can be incorporated as cost effectively. We also operate three separate mining operations: KwaZulu-Natal (“KZN”) Sands located in South Africa, Namakwa Sands located in South Africa and Cooljarloo located in Western Australia.

Our TiO₂ business includes the following:

Recent Developments

On February 21, 2017, Tronox Limited, The National Titanium Dioxide Company Ltd., a limited company organized under the laws of the Kingdom of Saudi Arabia (“Cristal”), and Cristal Inorganic Chemicals Netherlands Coöperatief W.A., a cooperative organized under the laws of the Netherlands and a wholly owned

subsidiary of Cristal (“Seller”), entered into a Transaction Agreement (the “Transaction Agreement”), pursuant to which we agreed to acquire Cristal’s titanium dioxide business for $1.673 billion in cash, subject to a working capital adjustment at closing (the “Cash Consideration”), plus 37,580,000 Class A ordinary shares (“Class A Shares”), par value $0.01 per share, of Tronox Limited (the “Cristal Transaction”). Following the closing of the Cristal Transaction, the Seller will own approximately 24% of the outstanding ordinary shares (including both Class A and Class B) of Tronox Limited. On March 1, 2018, Tronox, Cristal and Seller entered into an Amendment to the Transaction Agreement (the “Amendment”) that extends the termination date under the Transaction Agreement to June 30, 2018, with automatic 3-month extensions to March 31, 2019, if necessary based on the status of outstanding regulatory approvals. The Amendment also provides that Tronox has the right to terminate the Transaction Agreement if it determines that the outstanding regulatory approvals are not reasonably likely to be obtained. In the event that such termination by Tronox is (i) on or after January 1, 2019, and Tronox elects to terminate the Transaction Agreement if it determines that the outstanding regulatory approvals are not reasonably likely to be obtained; or (ii) if regulatory approval has not been obtained by March 31, 2019 and Tronox or Cristal elects to terminate the Transaction Agreement; then Tronox is required to pay Cristal a $60 million termination fee. The Transaction Agreement also provides that we must pay to Cristal a termination fee of $100 million if all conditions to closing, other than the financing condition, have been satisfied and the Transaction Agreement is terminated because closing of the Cristal Transaction has not occurred by June 30, 2018 (subject to automatic 3-month extensions to March 31, 2019 if necessary based on the status of outstanding regulatory approvals).

The Cristal Transaction is conditioned upon the receipt of various regulatory approvals, including antitrust clearance in numerous jurisdictions. On April 13, 2017, the FTC issued a request for additional information (“Second Request”) to the Company and Cristal in connection with its filing under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, and Tronox believes it has fully complied with the Second Request. On December 5, 2017, the FTC announced that it would not approve the Cristal Transaction as proposed and filed an administrative action to prevent the parties from consummating the transaction. On January 23, 2018, Tronox filed suit against the FTC in the U.S. District Court for the Northern District of Mississippi seeking a declaration that the Cristal Transaction is lawful under applicable law, among other things. On December 21, 2017, the European Commission announced that after its initial review, it would pursue Phase II investigation of the Cristal Transaction before reaching a decision to approve it, with or without conditions. The transaction agreement provides for customary representations, warranties and covenants that are subject, in some cases, to specified exceptions and qualifications contained in the transaction agreement. There can be no assurance, however, that all closing conditions for the Cristal Transaction will be satisfied and, if they are satisfied, that they will be satisfied in time for the closing to occur by June 30, 2018 (subject to automatic 3-month extensions to March 31, 2019 if necessary based on the status of outstanding regulatory approvals), at which time either party to the transaction agreement may mutually agree to extend the closing date or terminate the transaction agreement if the Cristal Transaction has not closed by such time. We have received approval for the Cristal Transaction from seven of the nine regulatory jurisdictions whose approvals are required to close Cristal Transaction.

On October 2, 2017, at a special meeting of shareholders of the Company held pursuant to the Transaction Agreement, the Company’s shareholders approved a resolution to issue 37,580,000 Class A Shares to the Seller in connection with the acquisition of Cristal’s TiO₂ business, and the resulting acquisition of interests in such Class A Shares by the Seller and certain other persons and entities, at the closing of such acquisition.

On September 1, 2017, we completed the Alkali Sale and in connection therewith, we recognized a loss of $233 million, net of tax, during the year ended December 31, 2017. See Note 3 of notes to consolidated financial statements for additional information. As a result of the Alkali Sale, Alkali’s results of operations have been reported as discontinued operations (see Note 3). Both Tronox Holdings and Genesis Energy, L.P. have agreed, following the closing, to indemnify the other party for losses arising from certain breaches of the Purchase Agreement and for certain other liabilities, subject to certain limitations. As a result of the Alkali Sale, we now operate under one operating and reportable segment, TiO_2.

On March 8, 2017, Exxaro announced its intention to begin pursuing a path to monetize its ownership stake in Tronox over time. On October 10, 2017, Exxaro sold 22,425,000 Class A Shares in an underwritten registered offering (the “Exxaro Share Transaction”). At December 31, 2017 and December 31, 2016, Exxaro held approximately 24% and 44%, respectively, of the voting securities of Tronox Limited. See Notes 1 and 21 of

notes to consolidated financial statements for additional information regarding Exxaro transactions. Presently, Exxaro intends to sell the remainder of its Tronox shares in a staged process over time pursuant to the existing registration statement, subject to market conditions. Exxaro’s sale of Class A Shares does not impact its 26% ownership interest in each of our Tronox KZN Sands (Pty) Ltd. and Tronox Mineral Sands (Pty) Ltd subsidiaries.

Beginning in the fourth quarter of 2016, we implemented various steps of an internal corporate reorganization plan to simplify our corporate structure and thereby improve operational, administrative, and commercial synergies within each of our operating segments (the “Corporate Reorganization”). As a result of the Corporate Reorganization, we reduced our cross-jurisdictional financing arrangements, eliminated administrative activities and reversed the deferred tax assets related to intercompany interest deductions. The related withholding tax accrual amounts were also reversed as a result of the Corporate Reorganization. Additionally, we reduced our deferred tax assets related to loss carryforwards, which will no longer be available to utilize. In connection with the Corporate Reorganization during the first quarter of 2017, Tronox Limited became managed and controlled in the U.K., with no additional impacts to the consolidated provision for income taxes due to the valuation allowances in various jurisdictions. See Note 6 of notes to our consolidated financial statements for additional information.

Business Environment

The following discussion includes trends and factors that may affect future operating results:

Our pigment business benefited from a global industry recovery that began in the first quarter of 2016. To meet healthy demand, we operated our pigment plants at high utilization rates while matching pigment production volumes to sales volumes and keeping inventory at or below normal levels. Global pigment pricing has rebounded with successive gains in each quarter since the first quarter of 2016. We believe pigment inventories, in the aggregate, are at or below normal levels at both customer and producer locations globally resulting in a continued tight supply-demand balance. We continue to use a significant majority of our high-grade titanium feedstock for our pigment production. We expect moderate cost increases related to other raw material inputs such as electrodes, coke, and electricity as commodity markets strengthen. The zircon market has stabilized but remains in a tight supply-demand balance and we expect modest price gains to continue in 2018.

We continue to be uniquely tax-advantaged by favorable tax loss carry forwards and other favorable tax positions. While we believe these tax-advantaged factors will continue to offer benefits for years to come, if Exxaro sells their remaining shareholdings in 2018, these favorable tax positions may no longer be available. See Note 6 of notes to our consolidated financial statements for additional information.

Consolidated Results of Operations from Continuing Operations

Year Ended December 31, 2017 Compared to the Year Ended December 31, 2016

Net sales in 2017 increased by 30% compared to 2016 primarily due to the impact of higher selling prices for Pigment of $200 million, Zircon of $28 million, Pig iron of $16 million, Slag Fines of $5 million and Natural Rutile of $2 million. Higher volume and product mix for Pigment of $38 million, CP Slag of $35 million, Zircon of $18 million, Pig Iron of $13 million, Ilmenite of $13 million, Synthetic Rutile of $8 million, Slag Fines of $3 million and Natural Rutile of $2 million also contributed to the increase in net sales for the year ended 2017. The impact from foreign currency translation versus 2016 was $7 million favorable.

Our gross profit margin in 2017 was 23% of net sales compared to 10% in the prior year. The increase of $254 million in our gross margin was primarily due to higher selling prices of $254 million, higher volumes and product mix of $28 million, the impact of lower production costs of $16 million due primarily to a higher facility utilization, partially offset by unfavorable changes in foreign currency translation of $44 million primarily from the South African Rand and Australian dollar.

Selling, general and administrative expenses increased by 33% in 2017 compared to 2016. Included in SG&A are $124 million and $63 million of corporate expenses for 2017 and 2016, respectively. The $61 million increase in corporate expenses was due to higher professional fees of $46 million related to the Cristal Transaction, higher employee share-based and other compensation costs of $11 million and higher other general and administrative costs of $4 million. SG&A costs associated with our TiO₂ activities increased $1 million from the prior year period primarily due to higher employee stock-based and other compensation costs and unfavorable changes in foreign currency translation.

Restructuring costs were $2 million lower than 2016. TiO₂ and corporate restructuring costs were each $1 million lower in 2017 compared to 2016. See Note 4 of notes to consolidated financial statements.

Income from operations for 2017 was $138 million, $261 million from our TiO₂ activities offset by $123 million of corporate expenses, which includes $124 million of SG&A and a $1 million reversal of restructuring expense. Loss from operations for 2016 was $56 million, $6 million income from operations from our TiO₂ activities and $62 million of corporate expenses. Income from operations for our TiO₂ activities increased by $255 million compared to 2016 primarily due to an increase in gross profit of $254 million, $2 million decrease in restructuring costs, offset by a $1 million increase in selling, general and administrative expenses. Corporate general and administrative expenses for 2017 increased for the reasons noted above in the discussion of the SG&A expenses.

Interest and debt expense, net - See Note 15 of notes to consolidated financial statements.

Gain (loss) on debt extinguishment in 2017 was a loss of $28 million compared to a gain $4 million in 2016 due to the refinancing of our term loan and notes in the third quarter of 2017. See Note 15 of notes to consolidated financial statements.

Other expense, net in 2017 primarily consisted of a net realized and unrealized foreign currency loss of $20 million, offset by interest income of $10 million. Other expense, net in 2016 primarily consisted of a net realized and unrealized foreign currency loss of $31 million, offset by interest income of $3 million. The change in the net realized and unrealized foreign currency is primarily driven by the strengthening of the South African Rand as of December 31, 2017 used in the remeasurement of our U.S. dollar denominated open trade and notes receivable positions.

The effective tax rates in 2017 and 2016 differ from the United Kingdom statutory rate of 19% and the Australian statutory rate of 30% primarily due to valuation allowances and income in foreign jurisdictions taxed at rates different than the statutory rates. Additionally, the net income impact of the Corporate Reorganization was a benefit of $137 million in the fourth quarter of 2016, reflecting the reversal of $139 million of withholding tax accruals, offset by a foreign currency loss of $2 million. For the year ended December 31, 2016, the net income impact was $107 million, reflecting a net reduction in withholding tax accruals of $110 million, offset by a foreign currency loss of $3 million.

Year Ended December 31, 2016 Compared to the Year Ended December 31, 2015

Net sales in 2016 decreased by 13% compared to 2015 primarily due to the impact of lower selling prices and product mix of $117 million, lower volumes of $83 million and unfavorable foreign currency translation of $1 million. The lower selling prices and selling mix impacted both feedstock and pigment products to a relatively equal extent. The impact of lower volumes primarily reflects $52 million related to the closure of our sodium chlorate plant in Hamilton, Mississippi in 2015, $83 million lower demand during 2016 for feedstock, partially offset by $52 million higher demand for pigment products.

Gross profit margin in 2016 was 10% of net sales compared to 1% in the prior year. The gross profit improvement highlights the cost reduction benefits from our operational excellence program and our operating strategy that focuses on matching TiO₂ pigment production to market demand while keeping finished pigment inventories at or below normal levels. For the majority of 2016, our average pigment capacity utilization rate was in excess of 90% with all lines at all pigment plants in operations.

Selling, general and administrative expenses in 2016 decreased by 5% compared to 2015. Included in SG&A are $63 million and $73 million of corporate expenses for the years ended December 31, 2016 and 2015, respectively. The decrease in corporate expenses compared to 2015 is primarily due to $29 million of additional professional fees related to the 2015 Alkali Transaction, partially offset by an $11 million transfer tax benefit from 2015 that did not recur, higher bad debt expense and employee related costs in 2016.

Restructuring income (expense) - See Note 4 of notes to consolidated financial statements.

Loss from continuing operations for the year ended December 31, 2016 was $56 million, $62 million of Corporate expenses offset by income of $6 million from our TiO₂ activities. Loss from continuing operations for the year ended December 31, 2015 was $201 million, $127 million of losses from our TiO₂ activities and $74 million of Corporate expenses including $1 million in restructuring costs. The improvement in results for our TiO₂ activities was primarily due to the gross profit improvement noted above. Corporate expenses for the year ended December 31, 2016 decreased for the reasons noted above in the discussion of the SG&A expenses.

Interest and debt expense, net - See Note 15 of notes to consolidated financial statements.

Gain (loss) on debt extinguishment - See Note 15 of notes to consolidated financial statements.

Other expense, net in 2016 primarily consisted of a net realized and unrealized foreign currency loss of $31 million, offset by interest income of $3 million. Other income, net during 2015, primarily consisted of a net realized and unrealized foreign currency gain of $21 million and interest income of $7 million. The change in the net realized and unrealized foreign currency is primarily driven by the strengthening of the South African Rand as of December 31, 2016 used in the remeasurement of our U.S. dollar denominated open trade and notes receivable positions.

The effective tax rate in 2016 and 2015 differs from the Australian statutory rate of 30% primarily due to valuation allowances, income in foreign jurisdictions taxed at rates lower than 30%, and withholding tax accruals

on interest income. The net income impact of the Corporate Reorganization was a benefit of $137 million in the fourth quarter of 2016, reflecting the reversal of $139 million of withholding tax accruals, offset by a foreign currency loss of $2 million. For the year ended December 31, 2016, the net income impact was $107 million, reflecting a net reduction in withholding tax accruals of $110 million, offset by a foreign currency loss of $3 million.

Liquidity and Capital Resources

During 2017, our liquidity improved by $876 million to $1.4 billion.

The table below presents our liquidity as of the following dates:

Our New Term Loan Facility, defined below, consists of (i) a U.S. dollar term facility in an aggregate principal amount of $1.5 billion (the “New Term Loans”) and (ii) a U.S. dollar term facility in an aggregate principal amount of $650 million (the “Blocked Term Loan”) which was included in restricted cash as of December 31, 2017. In connection with the Cristal Transaction, we refinanced and increased our credit facilities lowering our cost of debt and extended the portfolio’s weighted average years to maturity. Additionally, we improved our mix of secured and unsecured debt and achieved more favorable covenants. See Note 15 of notes to consolidated financial statements. Historically, we have funded our operations and met our commitments through cash generated by operations. During 2012, 2015 and 2017, we issued a $900 million aggregate principal, 6.375% senior notes due 2020 at par value (the “Senior Notes due 2020”) which were redeemed during the third quarter of 2017, a $600 million aggregate principal, 7.50% senior notes due 2022 (the “Senior Notes due 2022”) and a $450 million aggregate principal, 5.75% senior notes due 2025 (the “Senior Notes due 2025”), respectively. Also, during 2013 and 2017 we obtained a $1.5 billion senior secured term loan (the “ Prior Term Loan”) which was repaid during the third quarter of 2017 and a $2.15 billion new senior secured first lien term loan facility (the “New Term Loan Facility”), respectively.

As of and for the year ended December 31, 2017, the non-guarantor subsidiaries of our Senior Notes due 2025 represented approximately 24% of our total consolidated liabilities, approximately 40% of our total consolidated assets, approximately 21% of our total consolidated net sales and approximately 36% of our Consolidated EBITDA (as such term is defined in the 2025 Indenture). In addition, as of December 31, 2017, our non-guarantor subsidiaries had $935 million of total consolidated liabilities (including trade payables but excluding intercompany liabilities), all of which would have been structurally senior to the 2025 Notes. See Note 15 of notes to consolidated financial statements for additional information.

At December 31, 2017, we had outstanding letters of credit, bank guarantees, and performance bonds, see Note 15 of notes to consolidated financial statements.

In the next twelve months, we expect that our operations and available borrowings under our debt refinancing and revolving credit agreements (see Note 15 of notes to consolidated financial statements) will provide sufficient cash to fund the Cristal Transaction, our operating expenses, capital expenditures, interest payments, debt repayments, and dividends. Working capital (calculated as current assets from continuing operations less current liabilities from continuing operations) was $2.3 billion at December 31, 2017, compared to $614 million at December 31, 2016, an increase of $1.7 billion, which is primarily due to proceeds from the sale of the Alkali business, debt refinancing and cash provided by continuing operations of $166 million, partially offset by dividends paid of $23 million and capital expenditures of $91 million.

Principal factors that could affect our ability to obtain cash from external sources include (i) debt covenants that limit our total borrowing capacity; (ii) increasing interest rates applicable to our floating rate debt;

(iii) increasing demands from third parties for financial assurance or credit enhancement; (iv) credit rating downgrades, which could limit our access to additional debt; (v) a decrease in the market price of our common stock and debt obligations; or (vi) volatility in public debt and equity markets.

As of December 31, 2017, our credit rating with Moody’s and Standard & Poor’s was B1 stable outlook and B stable outlook, respectively. On August 24, 2017, Standard & Poor’s upgraded our outlook to B stable outlook from B negative outlook. On September 7, 2017, Moody’s upgraded our corporate credit rating to B1 stable outlook from B2 negative outlook. At December 31, 2017, we have sufficient borrowings available and have no significant principal payments on debt due until 2022.

Cash and Cash Equivalents

We consider all investments with original maturities of three months or less to be cash equivalents. As of December 31, 2017, our cash and cash equivalents were primarily invested in money market funds. We maintain cash and cash equivalents in bank deposit and money market accounts that may exceed federally insured limits. The financial institutions where our cash and cash equivalents are held are generally highly rated and geographically dispersed, and we have a policy to limit the amount of credit exposure with any one institution. We have not experienced any losses in such accounts and believe we are not exposed to significant credit risk.

The use of our cash includes servicing our interest and debt repayment obligations, making pension contributions and making quarterly dividend payments.

Repatriation of Cash

At December 31, 2017, we held $1.8 billion in cash and cash equivalents and restricted cash in these respective jurisdictions: $42 million in Europe, $117 million in Australia, $110 million in South Africa, and $1.5 billion in the United States. Our credit facilities contain restrictions that limit our ability to move assets between guarantors and non-guarantors.

Tronox Limited has foreign subsidiaries with positive undistributed earnings at December 31, 2017. We have made no provision for deferred taxes related to these undistributed earnings because they are considered to be indefinitely reinvested in the foreign jurisdictions.

Cash Dividends on Class A and Class B Shares

During 2017, we declared and paid quarterly dividends to holders of our Class A ordinary shares (“Class A Shares”) and Class B ordinary shares (“Class B Shares”) as follows:

On February 20, 2018, the Board of Directors declared a quarterly dividend of $0.045 per share to holders of our Class A Shares and Class B Shares at the close of business on March 12, 2018, totaling $5 million, which will be paid on or before March 26, 2018.

Debt Obligations

At December 31, 2017 and 2016, our net debt (the excess of our debt over cash and cash equivalents) was $2.0 billion and $2.8 billion, respectively, excluding the $650 million of cash related to the Blocked Term Loan at December 31, 2017.

Our short-term debt at December 31, 2016 consisted of the UBS Revolver with an outstanding balance of $150 million. We repaid the $150 million outstanding balance of the UBS Revolver during the third quarter of 2017 (See Note 15 of notes to consolidated financial statements for additional information). The average effective interest rate of our UBS Revolver was 4.7% and 4.2% during 2017 and 2016, respectively. Our short-term debt at December 31, 2017 consisted of the Wells Fargo Revolver and the New ABSA Revolver with no outstanding balance.

Long-term debt, net of an unamortized discount and debt issuance costs, consisted of the following:

At December 31, 2017, we had no financial covenants in the Wells Fargo Revolver, the New ABSA Revolver and the New Term Loan Facility, however, only the New ABSA Revolver had a financial maintenance covenant that applies to local operations and only when the New ABSA Revolver is drawn upon. We were in compliance with all of our reporting covenants as of and for the year ended December 31, 2017. See Note 15 of notes to financial statements.

Cash Flows

Years Ended December 31, 2017 and 2016

The following table presents cash flow from continuing operations for the periods indicated:

Cash Flows provided by Operating Activities - Net cash provided by operating activities during 2017 of $166 million increased by $80 million compared to 2016. This increase was primarily due to higher cash earnings in 2017, partially offset by higher working capital reductions in 2016.

Cash Flows provided by (used in) Investing Activities - Net cash flows provided by investing activities in 2017 was $583 million compared to cash used in investing activities of $84 million in 2016. The increase was primarily due to proceeds of $1.325 billion from the Alkali Sale, offset by the $650 million proceeds from the Blocked Term Loan, and related interest of $1 million, under the New Term Loan Facility, which is included in “Restricted cash” in the Consolidated Balance Sheets at December 31, 2017. Capital expenditures were $5 million higher in 2017 compared to 2016.

Cash Flows provided by (used in) Financing Activities - Net cash provided by financing activities during 2017 was primarily attributable to proceeds from long-term debt of $2.6 billion, partially offset by repayments of

short-term and long-term debt of $2.5 billion, debt issuance costs of $37 million and call premium of $14 million. In addition, in 2017, dividends paid were $23 million, restricted stock and performance-based shares settled in cash for taxes were $12 million and proceeds received from the exercise of warrants and options were $13 million. These compare to net cash used in financing activities during 2016 of $78 million, which was primarily attributable to dividends paid of $46 million and principal repayments on long-term debt of $31 million.

Years Ended December 31, 2016 and 2015

The following table presents cash flow from continuing operations for the periods indicated:

Cash Flows provided by Operating Activities - Net cash provided by operating activities during 2016 of $86 million increased by $19 million compared to 2015. The increase was primarily due to higher cash earnings in 2016, partially offset by higher working capital reductions in 2015.

Cash Flows used in Investing Activities - Net cash used in investing activities in 2016 was $84 million compared to $1.814 billion in 2015. The decrease was primarily due to the acquisition of Alkali for $1.65 billion in 2015. Capital expenditures were $86 million and $165 million in 2016 and 2015, respectively. The reduction in capital spending was due to the completion of the new Fairbreeze mine in South Africa.

Cash Flows provided by (used in) Financing Activities - Net cash used in financing activities during 2016 was primarily attributable to dividends paid of $46 million and principal repayments on long-term debt of $31 million. This compares to net cash provided by financing activities during 2015 which was primarily attributable to cash received from the issuance of the Senior Notes due 2022 of $600 million and cash received on the drawdown of the UBS Revolver of $150 million, partially offset by dividends paid of $117 million, debt issuance costs paid of $15 million and principal repayments on long-term debt of $18 million.

Contractual Obligations

The following table sets forth information relating to our contractual obligations as of December 31, 2017:

Non-U.S. GAAP Financial Measures

EBITDA and Adjusted EBITDA, which are used by management to measure performance, are not presented in accordance with U.S. GAAP. Management believes that EBITDA is useful to investors, as it is commonly used in the industry as a means of evaluating operating performance. We do not intend for these non-U.S GAAP financial measures to be a substitute for any U.S. GAAP financial information. Readers of these statements should use these non-U.S. GAAP financial measures only in conjunction with the comparable U.S. GAAP financial measures. Since other companies may calculate EBITDA and Adjusted EBITDA differently than we do, EBITDA and Adjusted EBITDA, as presented herein, may not be comparable to similarly titled measures reported by other companies.

Management believes these non-U.S. GAAP financial measures:

Adjusted EBITDA is one of the primary measures management uses for planning and budgeting processes, and to monitor and evaluate financial and operating results. In addition, Adjusted EBITDA is a factor in evaluating management’s performance when determining incentive compensation.

The following table reconciles net income (loss) to EBITDA and Adjusted EBITDA for the periods presented:

The following table reconciles net income (loss) from continuing operations, our comparable measure for segment reporting under U.S. GAAP, to Adjusted EBITDA by segment for the periods presented: