Exhibit 99.1

DuPont Delivers 3Q 2013 Operating Earnings of $.45 per Share

Sales Increase on Higher Volume

WILMINGTON, Del., October 22, 2013 — DuPont today announced third quarter 2013 operating earnings of $.45 per share compared to $.43 per share in the prior year.  GAAP1 earnings from continuing operations were $.28 per share versus a loss of $.05 per share for the third quarter 2012.  Third quarter results principally reflect overall top-line growth and earnings improvements for Performance Materials, Electronics & Communications and Safety & Protection, and a lower effective tax rate.  This was offset by expected lower earnings for Performance Chemicals.

Highlights

·                  Third quarter net sales of $7.7 billion increased 5 percent, with volume up 9 percent versus a weak prior year.  Sales also reflect 3 percent lower local prices and a 1 percent negative currency impact.

·                  Excluding Performance Chemicals, all operating segments posted increased operating earnings versus last year.  Performance Materials, Electronics & Communications, Safety & Protection and Industrial Biosciences had double-digit earnings growth reflecting higher volumes and improved margins.

·                  Agriculture sales grew 15 percent driven by increased insecticide volumes and higher seed prices in Latin America. The sales growth and the benefit of increased ownership in Pannar Seed (Pty) Ltd.  reduced the segment’s third quarter seasonal loss to $62 million.

·                  Cost productivity gains and restructuring savings are on track to meet or exceed full-year targets.

·                  The company continues to expect full-year operating earnings of about $3.85 per share.

“We executed well against our plans.  Third quarter sales volumes and operating earnings were stronger across most businesses compared to a soft quarter last year,” said DuPont Chair and CEO Ellen Kullman.  “While we expect overall sequential growth in industrial market demand will remain subdued, fourth quarter operating earnings will be up substantially from last year.  For the full year we are on track to deliver modest earnings growth, despite the significant decline in Performance Chemicals’ results.”

1Generally Accepted Accounting Principles (GAAP)

Global Consolidated Net Sales — 3rd Quarter

Third quarter 2013 net sales were $7.7 billion, up 5 percent versus last year, reflecting 9 percent higher volume, partly offset by 3 percent lower local selling prices and 1 percent negative currency impact.   The table below shows third quarter regional sales and variances versus third quarter 2012.

* Europe, Middle East & Africa

Segment Sales — 3rd Quarter

The table below shows third quarter 2013 segment sales with related variances versus the prior year.

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Operating Earnings — 3rd Quarter

(1)  See Schedules B and C for listing of significant items and their impact by segment.

(2)  See Schedule D for additional information on exchange gains and losses.

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The following is a summary of business results for each of the company’s reportable segments in the third quarter comparing the current quarter with the prior year.  References to selling price are on a U.S. dollar basis, including the impact of currency.

Agriculture — A seasonal operating loss of $62 million improved $8 million. The improvement was driven by strong insecticide demand as growers anticipate heavy insect pressure in Latin America, price improvement in seeds, and a $26 million gain resulting from the acquisition of a controlling interest in Pannar.  These increases were offset by higher seed costs reflecting finalization of the northern hemisphere season, continued investment to drive future growth and a negative currency impact.

Electronics & Communications — Operating earnings of $97 million increased $39 million driven by higher sales volume, mainly in photovoltaic markets reflecting demand improvement and share gains. Higher volume was offset in part by reduced selling prices, mainly from pass-through of lower metals prices.

Industrial Biosciences — Operating earnings of $45 million were up 13 percent on higher sales of Sorona® polymer for carpeting and apparel and lower costs, partially offset by higher raw material costs.

Nutrition & Health — Operating earnings of $81 million increased 5 percent reflecting productivity improvements, partially offset by higher cost guar inventory and negative currency.

Performance Chemicals — Operating earnings of $254 million were $159 million lower as price declines for titanium dioxide, refrigerants and fluoropolymers, along with higher raw material inventory costs, principally ore costs, more than offset volume increases. Titanium dioxide volume was up 25 percent from third quarter 2012 and essentially flat on a sequential basis.

Performance Materials — Operating earnings of $374 million increased $43 million including a $30 million benefit from a joint venture.  Earnings improvement from higher volume reflecting increased demand in packaging, automotive, and electronics markets was partially offset by lower selling prices.

Safety & Protection — Operating earnings of $171 million increased $24 million due primarily to higher volume and productivity improvements, partially offset by weaker sales mix. Higher volume reflects increased demand for U.S. ballistics military protection, protective garments, and construction products that offset softness in global public sector spending.

Additional information is available on the DuPont Investor Center website at http://www.investors.dupont.com.

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Outlook

The company continues to expect full-year operating earnings of about $3.85 per share, with some changes in underlying assumptions.  The company now anticipates slightly lower full-year growth rates for global GDP and industrial production, a larger negative currency impact and a lower base tax rate of about 22 percent.

Use of Non-GAAP Measures

Management believes that certain non-GAAP measurements are meaningful to investors because they provide insight with respect to ongoing operating results of the company.  Such measurements are not recognized in accordance with GAAP and should not be viewed as an alternative to GAAP measures of performance.  Reconciliations of non-GAAP measures to GAAP are provided in schedules A, C and D.

DuPont (NYSE: DD) has been bringing world-class science and engineering to the global marketplace in the form of innovative products, materials, and services since 1802.  The company believes that by collaborating with customers, governments, NGOs, and thought leaders we can help find solutions to such global challenges as providing enough healthy food for people everywhere, decreasing dependence on fossil fuels, and protecting life and the environment.  For additional information about DuPont and its commitment to inclusive innovation, please visit http://www.dupont.com.

Forward-Looking Statements:  This news release contains forward-looking statements which may be identified by their use of words like “plans,” “expects,” “will,” “believes,” “intends,” “estimates,” “anticipates” or other words of similar meaning.  All statements that address expectations or projections about the future, including statements about the company’s growth strategy, product development, regulatory approval, market position, anticipated benefits of acquisitions, outcome of contingencies, such as litigation and environmental matters, expenditures and financial results, are forward-looking statements.  Forward-looking statements are not guarantees of future performance and are based on certain assumptions and expectations of future events which may not be realized.  Forward-looking statements also involve risks and uncertainties, many of which are beyond the company’s control.  Some of the important factors that could cause the company’s actual results to differ materially from those projected in any such forward-looking statements are: fluctuations in energy and raw material prices; failure to develop and market new products and optimally manage product life cycles; significant litigation and environmental matters; failure to appropriately manage process safety and product stewardship issues; changes in laws and regulations or political conditions; global economic and capital markets conditions, such as inflation, interest and currency exchange rates; business or supply disruptions; security threats, such as acts of sabotage, terrorism or war, weather events and natural disasters; ability to protect and enforce the company’s intellectual property rights; and successful integration of acquired businesses and separation of underperforming or non-strategic assets or businesses.  The company undertakes no duty to update any forward-looking statements as a result of future developments or new information.

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10/22/13

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E. I. du Pont de Nemours and Company

Consolidated Income Statements

(Dollars in millions, except per share amounts)

SCHEDULE A

(a) See Schedule B for detail of significant items.

(b) The sum of the individual earnings per share amounts may not equal the total due to rounding.

Reconciliation of Non-GAAP Measures

Summary of Earnings Comparison

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E. I. du Pont de Nemours and Company

Condensed Consolidated Balance Sheets

(Dollars in millions, except per share amounts)

SCHEDULE A (continued)

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E. I. du Pont de Nemours and Company

Condensed Consolidated Statement of Cash Flows

(Dollars in millions)

SCHEDULE A (continued)

Reconciliation of Non-GAAP Measure

Calculation of Free Cash Flow - Total Company

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E. I. du Pont de Nemours and Company

Schedule of Significant Items from Continuing Operations

(Dollars in millions, except per share amounts)

SCHEDULE B

SIGNIFICANT ITEMS FROM CONTINUING OPERATIONS

(a)    Third quarter 2013 includes a net charge of $(40) consisting of a $(65) charge associated with the company’s process to fairly resolve claims related to the use of Imprelis® herbicide offset by $25 of insurance recoveries.  At September 30, 2013, the company has recorded charges of $(930) to resolve these claims. The company will continue to evaluate reported claim damage as additional information becomes available. It is reasonably possible that additional charges could result related to this matter and the company currently estimates that total charges could be about $1,200. The company has an applicable insurance program with a deductible equal to the first $100 of costs and expenses. The insurance program limits are $725 for costs and expenses in excess of the $100. The company has submitted and will continue to submit requests for payment to its insurance carriers for costs associated with this matter. The company has begun to receive payment from its insurance carriers and continues to seek recovery although the timing and outcome remain uncertain. These charges are recorded in Other operating charges and relate to the Agriculture segment.

(b)    First quarter 2013 included a net tax benefit of $42 consisting of a $68 benefit for the 2013 extension of certain U.S business tax provisions offset by a ($26) charge related to the global distribution of Performance Coatings cash proceeds.

(c)     Second quarter 2013 included a charge of ($11) in Other income, net related to interest on a prior year tax position.  Second quarter 2013 also included a charge of ($49) associated with a change in accrual for a prior year tax position (inclusive of a benefit associated with interest on a prior year tax position) offset by a $33 benefit for an enacted tax law change.

(d)    Second quarter 2012 included a charge of ($137) recorded in Other operating charges primarily related to the company’s settlement of litigation with Invista.  This matter relates to Other.

(e)     Second quarter 2012 included a pre-tax gain of $122 recorded in Other income, net associated with the sale of an equity method investment in the Electronics & Communications segment.

(f)      Third quarter 2013 includes a charge of $(72) recorded in Other operating charges related to the company’s settlement of titanium dioxide antitrust litigation.  This matter relates to the Performance Chemicals segment.

(g)     Third quarter 2012 included a $152 restructuring charge recorded in Employee separation/asset related charges, net consisting of $133 of severance and related benefit costs and $19 of asset related charges as a result of the company’s plan to eliminate corporate costs previously allocated to Performance Coatings and cost-cutting actions to improve competitiveness.  Pre-tax charges by segment were: Agriculture - $(3), Nutrition & Health - $(13), Electronics & Communications - $(7), Performance Chemicals - $(3), Performance Materials - $(9), Safety & Protection - $(55), Industrial Biosciences - $(3), and Corporate expenses - $(59).

(h)    Third quarter 2012 included a $242 impairment charge recorded in Employee separation/asset related charges, net related to asset groupings within the Electronics & Communications and Performance Materials segments. The charge of $150 within Electronics & Communications was a result of conditions within the thin film photovoltaic market. The charge of $92 within Performance Materials was the result of deteriorating conditions in an industrial polymer market.

(i)        Earnings per share for the year may not equal the sum of quarterly earnings per share due to changes in average share calculations.

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E. I. du Pont de Nemours and Company

Consolidated Segment Information

(Dollars in millions)

SCHEDULE C

(1)   Sales for the reporting segments include transfers.

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E. I. du Pont de Nemours and Company

Consolidated Segment Information

(Dollars in millions)

SCHEDULE C (continued)