1

Ellen Kullman Chair of the Board & Chief Executive Officer

E. I. du Pont de Nemours & Company

Credit Suisse Chemical and Ag Science Conference

September 19, 2013 New York City

2

2

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 and allows investors to better evaluate the financial 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 on non-GAAP measures to GAAP are available on the Investor Center of www.dupont.com under Key Financials & Filings.

Forward Looking Statements During the course of this presentation we may make forward-looking statements or provide forward-looking information. All statements that address expectations or projections about the future are forward-looking statements. Some of these statements include words such as “plans,” “expects,” “will,” “anticipates,” "believes," “intends,” and “estimates.” Although they reflect our current expectations, these statements are not guarantees of future performance, but involve a number of risks, uncertainties, and assumptions. Some of those risk factors include: fluctuations in energy and raw material prices; failure to develop and market new products and optimally manage product life cycles; global economic and capital markets conditions; litigation and environmental matters; changes in laws and regulations or political conditions; business or supply disruptions; inability to protect and enforce the company’s intellectual property rights and successful integration of acquired business and divestitures of underperforming or non-strategic assets. The company does not undertake 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.

3

Clear Strategy, Stronger Company… … Superior Return to Shareholders

4

Three Strategic Priorities To Increase The Value Of DuPont…

Increasing The Value Of DuPont

Ag & Nutrition 1. Extend our

leadership across the high-value, science- driven segments of the Ag and Food value chain

Bio-based Industrials

2. Develop world-

leading industrial biotechnology capabilities to create transformational new bio-based businesses

Advanced Materials

3. Strengthen and

grow our leading position in differentiated high-value materials and leverage new sciences

Higher Growth, Higher Value Company By Building And Leveraging Three World-Leading Positions

5

…In Conjunction With Three Operational Priorities

Our efforts to accelerate growth, improve margins and increase return to shareholders are ongoing and we are committed to

delivering superior value creation to shareholders

Increasing Return on R&D Driving Penetration In Fast-Growing, Developing Markets

• Delivering Ongoing Productivity

• Optimizing resource allocation

• Returning cash to shareholders

Innovation Global Reach Execution

6

Stronger Positions in Secular Growth Markets

Agriculture Food Biosciences

Automotive Mobile Devices, Displays

Solar/Energy Protection

Well Positioned in Growth Markets

203

21

48

155

187

89

255

159

0

31

73

125

128

100

162

219

219

219

242

242

242

Template Theme

Colors

Secondary + Chart

Colors

203

21

48

65

152

175

113

88

143

192

192

192

31

73

125

255

255

153

226

140

0

137

165

78

7

Increased CapEx And R&D For Higher Growth Businesses

73%

84%

20%

13%

7%

3%

$0.0

$0.5

$1.0

$1.5

$2.0

$2.5

$3.0

$3.5

$4.0

2007 2012

Cap

Ex A

nd

R&

D S

pe

nd

Pro

file

($

B)*

Core Segments Performance Chemicals Performance Coatings

* Excludes corporate CapEx and restated to include allocation of corporate R&D spend to segments

(1) Core Segments include Agriculture, Electronics & Communications, Industrial Biosciences, Nutrition & Health, Performance Materials, and Safety & Protection

(1)

Positioning DuPont For Greater Growth Through Increased Investment And Differential Capital Deployment

+33% Total

Increase

203

21

48

155

187

89

255

159

0

31

73

125

128

100

162

219

219

219

242

242

242

Template Theme

Colors

Secondary + Chart

Colors

203

21

48

65

152

175

113

88

143

192

192

192

31

73

125

255

255

153

226

140

0

137

165

78

8

Ongoing Portfolio Enhancement Through Major M&A…

2012 Segment Sales Performance

Coatings

Agriculture

Industrial Biosciences

Safety & Protection

Performance Materials

Performance Chemicals

Nutrition & Health

Electronics & Communications

Positioning DuPont For Future Growth – Higher Growth And Margins With Reduced Cyclicality And Commoditization

* Consolidated net sales from continuing operations.

$34.8B*

203

21

48

155

187

89

255

159

0

31

73

125

128

100

162

219

219

219

242

242

242

Template Theme

Colors

Secondary + Chart

Colors

203

21

48

65

152

175

113

88

143

192

192

192

31

73

125

255

255

153

226

140

0

137

165

78

9

DuPont Has Implemented Aggressive Cost Cutting And Working Capital Improvements

Cost Reductions Working Capital Savings

Since 12/31/08:

Announced Cost Reductions

Cost Reductions Achieved

$0.0

$0.5

$1.0

$1.5

$2.0

$2.5

$3.0

2009 2010 2011 2012

>$2.6B Cumulative Working Capital Savings (2009 - 2012)

11.8%

10.5%10.0% 10.2%

9.7%

0.0%

2.0%

4.0%

6.0%

8.0%

10.0%

12.0%

14.0%

2009 2010 2011 2012 1H 2013

SG&

A %

of

Re

ven

ue

$2.0B

>$2.2B

Savings Actions Funded Growth Investments And Offset Inflation

• Days Payable Outstanding (DPO) increased by 11%

• Days Sales Outstanding (DSO) decreased by 12%

• Inventory Days Supply (IDS) remained flat: Performance Chemicals ; Remaining Businesses

203

21

48

155

187

89

255

159

0

31

73

125

128

100

162

219

219

219

242

242

242

Template Theme

Colors

Secondary + Chart

Colors

203

21

48

65

152

175

113

88

143

192

192

192

31

73

125

255

255

153

226

140

0

137

165

78

10 * Excludes non-operating pension/OPEB costs and significant items

Significant Improvement in Segment Operating Margins

Operating Margin* 2008 – 2012 Improvement (BPS) Segments 2008 2012

Agriculture 15.4% 20.5% 507

Electronics & Communications 11.3% 9.6% (171)

Industrial Biosciences - 13.7% -

Nutrition & Health 2.5% 9.3% 683

Performance Chemicals 10.9% 25.2% 1,430

Performance Materials 6.3% 19.0% 1,271

Safety & Protection 18.7% 16.2% (249)

Total 10.9% 17.6% 664

203

21

48

155

187

89

255

159

0

31

73

125

128

100

162

219

219

219

242

242

242

Template Theme

Colors

Secondary + Chart

Colors

203

21

48

65

152

175

113

88

143

192

192

192

31

73

125

255

255

153

226

140

0

137

165

78

11

$1.5

$3.5 $0.7

$0.1

$2.2

$3.6

$0.0

$0.5

$1.0

$1.5

$2.0

$2.5

$3.0

$3.5

$4.0

1/1/2008 1/1/2009 1/1/2010 1/1/2011 1/1/2012

Net

Inco

me

($

B)

Net Income (less Pharma) Pharma Net Income

Strong Performance Despite Pharma License Expiration

(1) Income from continuing operations after income taxes, excluding significant items and non-operating pension/OPEB costs (2) Pharma Net Income assumes a tax rate of 35%

2008 2012

DuPont Has Greatly Exceeded Pharma’s Contribution In Less Than Four Years

(2) (1)

203

21

48

155

187

89

255

159

0

31

73

125

128

100

162

219

219

219

242

242

242

Template Theme

Colors

Secondary + Chart

Colors

203

21

48

65

152

175

113

88

143

192

192

192

31

73

125

255

255

153

226

140

0

137

165

78

12

DuPont TSR & CAPITAL RETURNED Significantly Outperformed Peers And The Broader Market

Total Shareholder Return (12/31/08 – 9/13/13)(1)

Source: Datastream as of 8/19/2013, Bloomberg, Capital IQ, FactSet (1) Proxy Peers and S&P Indices are USD market cap-weighted and assume dividends are re-invested at the closing price applicable on the ex-dividend date (2) Proxy Peers consists of 3M, Air Products, Baxter Intl, Boeing, Caterpillar, Dow, Emerson, Honeywell, Ingersoll Rand, Johnson Controls, Johnson and Johnson, Kimberly Clark, Merck,

Monsanto, Proctor and Gamble, Syngenta AG, and United Technologies (3) S&P Chemicals in 2012 consists of Airgas, Air Products, CF Industries, Dow, DuPont, Eastman Chemical, Ecolab, FMC, IFF, LyondellBasell, Monsanto, Mosaic, PPG, Praxair, Sherwin-

Williams, and Sigma-Aldrich (4) Calculated as the average of annual dividends + common stock repurchases / average daily market cap in each of the four years (2009 – 2012)

4.9%

4.5%

3.7%

4.2%

DuPont

Proxy Peers

S&PChemicals

S&P 500

Total Capital Returned to Shareholders (2009 – 2012)(4)

182%

95%

156%

107%

DuPont

Proxy Peers

S&PChemicals

S&P 500

(2)

(3)

13

Building A Higher Growth, Higher Value Company

14

DuPont’s Broad Science And Innovation Capabilities Create A Large And Accelerating Growth Opportunity

Materials Science

Chemistry

Biological Sciences

World Class Integrated Science Coupled With…

Engineering

Catalysis

Precision Patterning

Fiber Science &

Engineering

Fluoro Chemical &

Polymer Synthesis

Polymer Synthesis

Surface & Colloidal Science

Film Fabrication

Inorganic / Organic

Synthesis

Rheology Control

Inorganic- Organic

Composites

Polymer Processing

Biochemistry

Fermentation Engineering

Formulation Science

Nanoscience

Metabolic Engineering

Nutrition Science

Molecular Biology

Chemical Engineering

Agronomy

Plant Physiology/

Disease

Microbiology

Conventional Breeding

Gene Recombination

& Regulation

Cell / Tissue Culture

Protein Engineering

Molecular Breeding

Genomics

Bio- informatics

Entomology

Plant Genetics

Particle & Dispersion

Science

…Compelling Market Insights To Solve World Scale Challenges

DuPont Is On The Forefront Of Another Transformational Wave Of Innovation

Integration of emerging

biological sciences

Energy

Protection

Food

15

DuPont Leverages Capabilities Across Its Technology Platform To Drive Innovation And Growth

Product: Plenish®

Function: Healthier, high-oleic soybeans

Status: In Launch

Product: Rynaxypyr®

Function: Breakthrough insect control, excellent environmental profile

Status: 2012 Sales: ~$750MM

Product: Solamet®

Function: Boosts solar panel output

Status: 2012 Sales: >$800MM

Product: Zytel® RS / Hytrel® RS

Function: Renewably sourced lightweight materials for automobiles and electronics

Status: Launched

Product: Cellulosic Ethanol

Function: Non-food sourced biofuels technology

Status: Scale-up

Product: Bio-PDO™ Enterprise

Function: Renewably sourced polymer

Status: 2012 Sales: ~$300MM

Current Product Examples of DuPont “Integrated Science” At Work

16

DuPont Has A Strong and Balanced Pipeline

*Circle size indicates estimated peak year revenue

Discovery Development Launch

Corn:

Intrasect®

Plenish® Canola

Cyazypyr®

Seed

Treatment

Cellulosic

Ethanol Food

Protection

Probiotics

Corn: New

MOA

Insect Control

Bio-THF

Bio-Isoprene

Biobutanol

AcreMax® PV:

Front side

silver paste

Opteon®

YF

Next Gen

Fluoropolymers

PV:

Ionomer

Encapsulant

OLED

Silicon

Ink

Zytel®

Next Gen

Nylons

Kevlar®

Tire

Innovation

Kevlar®

AP

Automotive

TPC

Agriculture and Nutrition

Bio-based Industrials

Advanced Materials

Personal

Care

Enzymes

Cold H2O

Enzymes

$100MM- 500MM $0-

100MM

$500MM+

203

21

48

155

187

89

255

159

0

31

73

125

128

100

162

219

219

219

242

242

242

Template Theme

Colors

Secondary + Chart

Colors

203

21

48

65

152

175

113

88

143

192

192

192

31

73

125

255

255

153

226

140

0

137

165

78

17

$6.6

$11.1

$0.0

$3.0

$6.0

$9.0

$12.0

2008 2012

Sale

s ($

B)

Developing Market Sales as % of Total DuPont

25%

32%

Rapidly Growing Developing Markets Sales Danisco Case Study

DuPont’s Global Infrastructure Broadens Sales Reach And Improves Margins

• Prior to its acquisition by DuPont, Danisco accessed developing markets via distributors with a negative impact on margins

• Today, Danisco leverages DuPont’s extensive global direct channel sales infrastructure, leading to:

• Broader geographic distribution

• Significantly enhanced margins

• Danisco’s sales growth trend** over last two years:

• Developing markets: +14%

• China: +22%

Drive Greater Penetration Into Fast-Growing Developing Markets

*

* Net sales from continuing operations ** Growth trend based upon monthly sales since June 2011

203

21

48

155

187

89

255

159

0

31

73

125

128

100

162

219

219

219

242

242

242

Template Theme

Colors

Secondary + Chart

Colors

203

21

48

65

152

175

113

88

143

192

192

192

31

73

125

255

255

153

226

140

0

137

165

78

18

Dividends Will Continue To Be A Priority…

$1.64 $1.64 $1.64

$1.70

$1.78

2009 2010 2011 2012 2013E

* 2013 estimate is based on the assumption that the board of directors will declare dividends for the fourth quarter in the same amount that will be paid in the third quarter

• Continuous dividend since 1904

• No reduction in dividend during recession or post Pharma license expiration

• Dividend growth restarted

• Dividend yield and payout ratio are above peers

*

Dividends per Share Stability and Growth Focus

Grow Future Dividends In Line With Earnings

203

21

48

155

187

89

255

159

0

31

73

125

128

100

162

219

219

219

242

242

242

Template Theme

Colors

Secondary + Chart

Colors

203

21

48

65

152

175

113

88

143

192

192

192

31

73

125

255

255

153

226

140

0

137

165

78

19

…To Be Complemented With Share Buybacks

We Will Continue To Repurchase Shares In Line With Our Balance Sheet Objectives And Strategic Opportunities

(1)

(1) Common dividends paid to shareholders

$1B

$3B

$5B

$7B

$9B

$0B

$2B

$4B

$6B

$8B

$10B

2009 2010 2011 2012 1H2013

Cu

mu

lati

ve C

apit

al R

etu

rned

To

Sh

areh

old

ers

($B

)

Cumulative Dividends Cumulative Buybacks

• Capital returned to shareholders has accelerated:

• Two recent dividend increases

• $1B share repurchase with Performance Coatings proceeds

Comments Capital Returned To Shareholders

20

Sales CAGR 7% Operating EPS CAGR 12%

Operational Priorities Strategic Priorities

What You Can Expect

Extend Ag & Nutrition Leadership

Strengthen Advanced Materials

Build Bio-based Businesses

Innovation

Execution

Global Reach

Long Term Growth Targets

21

Copyright © 2013 DuPont. All rights reserved. The DuPont Oval Logo, DuPontTM The miracles of scienceTM, and all products denoted with ® or TM are trademarks or registered trademarks of E. I. du Pont de Nemours and Company.