Exhibit 99.1

FOR IMMEDIATE RELEASE

LSB INDUSTRIES, INC. REPORTS RESULTS FOR THE 2014 FOURTH QUARTER

Provides Chemical Business Product Volume Guidance for 2015 First Quarter and

Financial Targets for 2017

OKLAHOMA CITY, Oklahoma…March 2, 2015… LSB Industries, Inc. (“LSB”) (NYSE: LXU) today announced results for the fourth quarter and full year ended December 31, 2014.

Financial Highlights of Fourth Quarter 2014 Compared to Fourth Quarter 2013

Financial Highlights of Full Year 2014 Compared to Full Year 2013

Barry Golsen, LSB’s President and CEO stated, “Our fourth quarter and 2014 results showed solid year-over-year improvement, excluding the benefit of insurance recoveries in 2013 and 2014. Our Chemical Business delivered growth in sales and adjusted operating income for the full year, reflecting the progress we have made in achieving higher on-stream rates at our Pryor, Cherokee and El Dorado Facilities, and the resulting improved overhead absorption. With that said, our Chemical Business did experience various headwinds throughout the year. In addition to lower selling prices for our agricultural products and higher

overall feedstock costs, we experienced some unplanned downtime at our Pryor and Cherokee Facilities. These maintenance issues have been resolved and both plants have been producing at targeted ammonia rates. Furthermore, we expect the cost disadvantage that results from the use of purchased ammonia at El Dorado to be eliminated once the in-process construction of the ammonia plant at the facility – expected to reduce costs, increase capacity and enhance product balance – is completed. This project, along with the enhancement of the El Dorado’s nitric acid capacity, remains on budget and on schedule and we expect significant incremental operating profit beginning in 2016 as a result of these investments.

“With respect to the macro picture for our Chemical Business, despite two seasons of record bumper corn crops, historically high stock-to-use ratios, and the expectation that corn acres planted in 2015 will be reduced, we believe that agricultural market fundamentals remain favorable and that the industrial markets should continue to benefit from the improving economy and low natural gas prices. As a result, we anticipate sufficient demand in 2015 to absorb the higher production levels we expect to achieve as a result of continued improvement in the on-stream rates of our chemical facilities.

Mr. Golsen continued, “Full year 2014 sales for our Climate Control Business were essentially flat with 2013, excluding the reduction in sales related to the previously disclosed termination of our agreement with Carrier for heat pumps. Bookings for the full year reached their highest level since 2008, despite lower order intake at the end of 2013 and early 2014 as a result of severe winter weather throughout the U.S., which negatively impacted sales in the first half of 2014. These strong bookings reflect a significant increase in demand in the second half of 2014, primarily for large custom air handlers and hydronic fan coils for the commercial market. We also recently changed leadership at ClimateMaster, which comprises nearly two-thirds of our Climate Control sales, and are focused on upgrading and expanding our product offerings across the entire Climate Control portfolio. In addition, we expect the continued benefit from our LEAN operational initiatives and the positive outlook for growth in both the commercial/institutional and residential markets that we serve will position the Climate Control business to generate increased sales and profits in 2015 and future years.”

Chemical Business Fourth Quarter 2014 Compared to Fourth Quarter 2013:

Comparison of 2014 to 2013 periods:

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The following tables provide key operating metrics for the Agricultural products of our Chemical Business.

With respect to sales of Industrial, Mining and Other Chemical Products, the following table indicates the volumes sold of our major products.

Climate Control Business Fourth Quarter 2014 Compared to Fourth Quarter 2013:

Comparison of 2014 to 2013 periods:

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Financial Position and Capital Additions

As of December 31, 2014, our total cash and investments were $272.6 million, including short-term investments as well as noncurrent restricted cash and investments designated for capital projects.

Total long-term debt was $457.3 million at December 31, 2014 compared to $463.0 million at December 31, 2013 and our $100 million Working Capital Revolver Loan remains undrawn (borrowing availability of $71.1 million). Interest expense, net of capitalized interest, for the fourth quarter of 2014 was $4.1 million compared to $7.3 million for the same period in 2013.

Capital additions were $70.3 million in the fourth quarter of 2014, including $54.6 million relating to the expansion projects at our El Dorado Facility, which include a 1,150 ton per day anhydrous ammonia production plant; a new 1,100 ton per day 65% strength nitric acid plant and concentrator; and other support infrastructure. Planned capital additions for 2015, in the aggregate, are estimated to range from $283 million to $346 million, including $225 million to $260 million remaining for the El Dorado expansion projects.

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The Company’s outlook for sales volume for the first quarter of 2015 in its Chemical Business is as follows:

Mr. Golsen concluded, “Overall, we are confident in our prospects for continued performance improvement in 2015 and a material expansion of profitability in 2016, when our new capacity at El Dorado is up and running, and into 2017. We believe that the strategic improvements we are making to bolster returns in both our Chemical and Climate Control businesses will allow us to capitalize on improving market conditions and drive enhanced value for all shareholders.

“Given this, we believe that we are well positioned to achieve a compounded annual revenue growth rate through 2017 of approximately 12% and operating margin of approximately 20% in our Chemical Business. In our Climate Control business, we anticipate a compounded annual revenue growth rate through 2017 of approximately 10% and operating margin of approximately 14%. This could translate into an EBITDA margin of approximately 30% in the Chemical Business and 15% in the Climate Control Business.”

The Company noted that the presentation accompanying today’s fourth quarter conference call includes additional details regarding its 2017 financial and operating targets.

Conference Call

LSB’s management will host a conference call covering the fourth quarter results on Monday, March 2, 2015 at 10:00 am ET/9:00 am CT to discuss these results and recent corporate developments. Participating in the call will be Executive Chairman, Jack E. Golsen; President and CEO, Barry H. Golsen; and Executive Vice President and CFO, Tony M. Shelby. Interested parties may participate in the call by dialing 201 493-6739. Please call in 10 minutes before the conference is scheduled to begin and ask for the LSB conference call. To coincide with the conference call, LSB will post a slide presentation at www.lsbindustries.com on the webcast section of Investor Info tab.

To listen to a webcast of the call, please go to the Company’s website at www.lsbindustries.com at least 15 minutes before the conference call to download and install any necessary audio software. If you are unable to listen live, the conference call webcast will be archived on the Company’s website. We suggest listeners use Microsoft Explorer as their web browser.

LSB Industries, Inc.

LSB is a manufacturing and marketing company. LSB’s principal business activities consist of the manufacture and sale of chemical products for the agricultural, mining and industrial markets; and, the manufacture and sale of commercial and residential climate control products, such as water source and geothermal heat pumps, hydronic fan coils, modular geothermal and other chillers and large custom air handlers.

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This press release contains certain forward-looking statements within the meaning of the Private Securities Litigation Act of 1995. These forward-looking statements generally are identifiable by use of the words “believe,” “expects,” “intends,” “plans to,” “estimates,” “projects” or similar expressions, including but not limited to, any references to future natural gas and ammonia costs, and the outlook for the chemical or climate control businesses, improvements to certain of our chemical plants that we expect to ultimately translate into stronger operating profit and cash flow; certain cost disadvantages to be eliminated with the installation of a new ammonia plant at El Dorado; improvement to our chemical industrial markets; demand in 2015 to absorb production levels at our chemical facilities; increase sales by our Climate Control Business in 2015; planned capital expenditures for 2015; and outlook for sales volume for the first quarter of 2015 in our Chemical Business.

Investors are cautioned that such forward-looking statements are not guarantees of future performance and involve risk and uncertainties, and that actual results may differ materially from the forward-looking statements as a result of various factors, including, but not limited to, general economic conditions; weather conditions; lack of growth in the commercial and residential construction industry; acceptance by the market of our geothermal heat pump products, acceptance of our technology; increase competitive pressures, domestically and foreign; price increases for raw materials; loss of significant customer; changes to federal legislation or adverse regulations; available working capital; ability to install necessary equipment and renovations at the El Dorado Facility and the Pryor Facility in a timely manner; receipt in a timely manner of production equipment; problems with production equipment; and other factors set forth under “Risk Factors” and “A Special Note Regarding Forward-Looking Statements” in the Form 10-K for year ended December 31, 2014, which contain a discussion of a variety of factors which could cause the future outcome to differ materially from the forward-looking statements contained in this release.

See Accompanying Tables

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LSB Industries, Inc.

Financial Highlights

Three Months and Twelve Months Ended December 31,

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LSB Industries, Inc.

Financial Highlights

Three Months and Twelve Months Ended December 31,

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LSB Industries, Inc.

Financial Highlights

Three Months and Twelve Months Ended December 31, 2014 and 2013

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LSB Industries, Inc.

Consolidated Balance Sheets

(Continued on following page)

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LSB Industries, Inc.

Consolidated Balance Sheets (continued)

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LSB Industries, Inc.

Non-GAAP Reconciliation

This news release includes certain “non-GAAP financial measures” under the rules of the Securities and Exchange Commission, including Regulation G. These non-GAAP measures are calculated using GAAP amounts in our consolidated financial statements.

EBITDA Reconciliations

EBITDA is defined as net income plus interest expense, depreciation, depletion and amortization of property plant and equipment, amortization of other assets, less interest included in amortization, plus provision for income taxes plus loss from discontinued operations. We believe that certain investors consider EBITDA a useful means of measuring our ability to meet our debt service obligations and evaluating our financial performance. EBITDA has limitations and should not be considered in isolation or as a substitute for net income, operating income, cash flow from operations or other consolidated income or cash flow data prepared in accordance with GAAP. Because not all companies use identical calculations, this presentation of EBITDA may not be comparable to a similarly titled measure of other companies. The following table provides a reconciliation of net income to EBITDA for the periods indicated.

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LSB Industries, Inc.

Non-GAAP Reconciliation (continued)

Adjusted Operating Income (Loss), EBITDA, Net Income (Loss) Applicable to Common Stock and Diluted Earnings per Share

Adjusted operating income (loss), adjusted EBITDA, adjusted net income (loss) applicable to common stock and adjusted income (loss) per diluted share are reported to show the impact of the insurance recoveries and unrealized loss on forward natural gas purchase commitments. We believe that the inclusion of supplementary adjustments to operating income, EBITDA, net income applicable to common stock and diluted income per common share, are appropriate to provide additional information to investors about certain unusual items. The following tables provide reconciliations of operating income, EBITDA, net income applicable to common stock and diluted income per common share excluding the impact of the insurance recoveries and unrealized loss on forward natural gas purchase commitments.

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LSB Industries, Inc.

Non-GAAP Reconciliation (continued)

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