Jim Collins, Executive Vice President

Industrial Biosciences & Performance Materials

December 2, 2014

CITI BASIC MATERIALS CONFERENCE

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Regulation G The attached charts include company information that does not conform to generally accepted accounting principles (GAAP). Management believes that an analysis of this data is meaningful to investors because it provides insight with respect to ongoing operating results of the company. These measures should not be viewed as an alternative to GAAP measures of performance. Furthermore, these measures may not be consistent with similar measures provided by other companies. This data should be read in conjunction with previously published company reports on Forms 10-K, 10-Q, and 8-K. These reports, along with reconciliations of non-GAAP measures to GAAP are available on the Investor Center of www.dupont.com under Filings and Reports – Reconciliations and Other Data. Reconciliations of non-GAAP measures to GAAP are also included with this presentation.

Forward-Looking Statements

This document 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 strategy for growth, product development, regulatory approval, market position, anticipated benefits of recent acquisitions, timing of anticipated benefits from restructuring actions, 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; successful integration of acquired businesses and separation of underperforming or non-strategic assets or businesses and successful completion of the proposed spinoff of the Performance Chemicals segment including ability to fully realize the expected benefits of the proposed spinoff. The company undertakes no duty to update any forward-looking statements as a result of future developments or new information.

Developing Markets

Total developing markets is comprised of Developing Asia, Developing Europe, Middle East & Africa, and Latin America. A detailed list of all developing countries is available on the Earnings News Release link on the Investor Center website at www.dupont.com.

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Advancing Our Transformation 2014 Progress

• Executed 6 strategic portfolio changes in 2014

• Separation plan for Performance Chemicals on track

• Implemented a redesign of business support functions

• Repurchased $2 billion of DuPont common stock

• Increased dividend in July, three dividend increases in 31 months

Source: Datastream as of 9/30/2014, Bloomberg, Capital IQ, FactSet Note: S&P Indices are USD market cap-weighted and assume dividends are re-invested at the closing price applicable on the ex-dividend date 1) Total Capital Returned to Shareholders calculated as dividends and share repurchases as a % of average market capitalization; S&P 500 metrics calculated as the average of the median value for all companies in the index

in each of the five years (2009 – 2013)

Total Capital Returned to Shareholders (2009 – 2013)(1)

$71.76

$55.24

$0

$10

$20

$30

$40

$50

$60

$70

$80

DuPont Share Price S&P 500 (Indexed to DD as of 12/31/2008)

Total Shareholder Return

DuPont 253%

S&P 500 147%

$1B$3B

$5B$7B

$10B

$13B

860

880

900

920

940

2009 2010 2011 2012 2013 2014 YTD

Nu

mb

er of Sh

ares (MM

)

Cumulative Dividends Cumulative Buybacks

Basic Shares Outstanding

5.0%

4.2%

DuPont

S&P 500

As of 9/30/14, cumulative dividends

exceeded $9B;

$5B share repurchase program

announced on 1/28/2014

Management Has A Track Record Of Delivering

Shareholder Value…

…And is Focused on Rewarding Shareholders

Share Price Performance

12/31/2008 – 9/30/2014

Capital Returned to

Shareholders

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DuPont Industrial Biosciences

Core Markets: Industrial Enzymes | BioBased Materials

DuPont Performance Materials Performance Polymers | Packaging &

Industrial Polymers

Core Markets: Transportation | Industrial | Packaging | Electrical/Electronics

Industrial Biosciences & Performance Materials

Performance Materials Key Markets

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MARKETS MARKET CAGR

2013-2017 TRENDS

% OF 2013 SALES*

Packaging

4-5%

• Convenience, affordability, enhanced performance, sustainability and down-gauging

11%

Transportation

3-5% • Durability, cost-efficiency, and

light-weighting for improved fuel efficiency in autos

36%

Industrial/ Construction

3-5% • Improved performance,

durability, lower cost, reduced maintenance

24%

Electronics and Consumer

3-5% • Advanced aesthetic solutions,

added functionality, lightweight, impact resistance

20%

* Segment sales include transfers

Performance Materials –

Delivering Strong Financial Results

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Operating Margins Up

• Increased operating margin* by 550 basis points from 2011-2013

$986 $966

20.5% 21%

2013 2014

Operating Margins Above our Long Term 16-18% Target

Operating Earnings

Consistency

• Steady 2014 operating earnings and margins despite ~2 month ethylene cracker shutdown, portfolio divestitures

Operating Earnings* and Operating

Margin* Performance

$984 $1,177 $1,280

15% 19% 20.5%

2011 2012 2013

2014 vs. 2013 Through 3Q

• Excludes non-operating pension/OPEB costs and significant items. See appendix for a reconciliation of non-GAAP measures * Prior periods reflect reclassifcation of Viton® fluoroelastomers from Performance Materials to Performance Chemicals

Performance Materials Strategic Priorities –

Summary

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Maintain differentiated position, best in class margins

• Global Application Development

• Targeted Investments

• Asset Cost Competitiveness

• Productivity

• Renewable Polymers

Performance Polymers

Packaging & Industrial Polymers

Biobased Industrials

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DuPont Vision for Biobased Industrials

Delivering superior biobased products and bio-advantaged technologies to our customers and partners that enable business and environmental success, and advance an economy based on renewable natural resources to ensure prosperity for generations to come.

Shape the Future of Industry by Transforming

Value Chains, Products and Processes with Better,

More Sustainable Solutions

Industrial Biosciences –

Delivering Strong Financial Results

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$129 $162

14% 17%

2013 2014

2014 YTD Operating

Earnings and Margins Up

• Earnings up 26%, operating margins up 300 basis points fueled by strong performance in core enzymes, biomaterials and bio refineries

Operating Earnings and

Margins Up

• Increased operating margin* by 200 basis points from 2011-2013

Operating Earnings* and Operating

Margin* Performance

$81

$162 $169

12% 14% 14%

2011 2012 2013

2014 vs. 2013 through 3Q

• Excludes non-operating pension/OPEB costs and significant items. See appendix for a reconciliation of non-GAAP measures • 2014 earnings based on YTD results through September 30, 2014 .

Nevada Site Cellulosic Ethanol Facility 9-2014

Commercial Demonstration Facility: Capacity: 30 million gallons per year

Location: Nevada, Iowa

Products: Cellulosic ethanol, lignin co-product

Feedstock: Corn stover

Status: Operational in 2015

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Industrial Biosciences Strategic Priorities -

Summary

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• Increase Investments in Core Enzyme Technology and Markets

• Expand Rapidly in Emerging Markets

• Invest for Growth and Productivity

• Demonstrate Commercial Capabilities

• License Technology

• Invest in Enzyme Manufacturing

• Drive Sorona® scale

• Develop Renewable Routes for Existing Markets

• Capture Transformative New Materials Opportunities

Bioactives Biomaterials Advanced Biofuels

Performance Materials and Industrial Biosciences

What We Expect to Deliver in 2015

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Maintain momentum in Performance Materials

Grow the value of Industrial Biosciences

Accelerate the integration of IB across DuPont

Selectively invest in renewable polymers

Start up our Cellulosic Ethanol Plant in 2015

RECONCILIATION OF SEGMENT PRE-TAX OPERATING INCOME (PTOI) TO OPERATING EARNINGS

Nine months Ended Year Nine months Ended Year Year

September 30, 2014 2013 September 30, 2013 2012 2011

Performance Materials (a)

Segment PTOI (GAAP) (b) 1,328 1,264 986 1,073 1,031 Add: Significant Items (Benefit)/Charge included in Segment PTOI (362) 16 - 104 (47)

Segment Operating Earnings (Non-GAAP) 966 1,280 986 1,177 984

Segment Sales (c) 4,668 6,239 4,718 6,185 6,554 20.7% 20.5% 20.9% 19.0% 15.0%

Three months Ended Nine months Ended Year Nine months Ended Year

September 30, 2014 September 30, 2014 2013 September 30, 2013 2012

Industrial Biosciences

Segment PTOI (GAAP) (b) 47 160 170 129 159 Add: Significant Items Charge/(Benefit) included in Segment PTOI - 2 (1) - 3

Segment Operating Earnings (Non-GAAP) 47 162 169 129 162

Segment Sales (c) 318 936 1,224 898 1,180 14.8% 17.3% 13.8% 14.4% 13.7%

(a) Prior periods reflect the reclassifications of Viton®

fluoroelastomers from Performance Materials to Performance Chemicals.

(c) Segment sales includes transfers.

(b) Segment PTOI is defined as income (loss) from continuing operations before income taxes excluding non-operating pension and other postretirement employee benefit costs, exchange gains

(losses), corporate expenses and interest.

E. I. DU PONT DE NEMOURS AND COMPANY AND CONSOLIDATED SUBSIDIARIES

RECONCILIATION OF NON-GAAP MEASURES (UNAUDITED)

Sement Operating Earnings Margin (Non-GAAP)

Sement Operating Earnings Margin (Non-GAAP)

(dollars in millions)

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