DuPont and Sumitomo Chemical Company Announce Global Seed-Applied Technology Agreement

Dec. 5, 2017

Global Collaboration Accelerates the Advancement of Seed-applied Technology to Bring New Innovation to Growers.

DES MOINES, Iowa, and WALNUT CREEK, Calif., Dec. 4, 2017 – DuPont and Sumitomo Chemical Company, Limited announced today a global agreement to collaborate on the development, registration and commercialization of seed-applied technologies for use in key crops around the world.

DuPont and Sumitomo Chemical formed this collaboration out of a shared objective to accelerate development and commercialization of novel seed-applied technologies to improve early plant growth and yields. The global agreement leverages the strengths of both companies, combining the conventional chemical and biological pipeline from Sumitomo Chemical, with the advanced seed technology and development and commercialization capability of DuPont Crop Protection, a business unit of Dow DuPont Agriculture Division.

By combining the pipeline from Sumitomo Chemical with DuPont's technology and capability, there is an opportunity to evaluate these technologies together, at much earlier stages, to understand the complementary characteristics of various product combinations. This early-stage collaboration will enhance current and future commercial products for seed-applied technologies.

"Sumitomo Chemical has made significant investments in rhizosphere technology research to enhance seed protection and maximize early plant development through chemical and biological agrosolutions," said Kimitoshi Umeda, associate officer and general manager, Agro Solutions Division-International at Sumitomo Chemical Company. "Partnering with DuPont affords the access to their advanced seed technology, and when evaluated in combination with our seed protection and enhancement solutions, will generate new opportunities to develop complementary and novel seed-applied technologies for growers around the world."

"We are excited about this collaboration with Sumitomo Chemical. The Sumitomo Chemical portfolio and pipeline will complement the investments DuPont has made in discovery, development and commercialization of seed-applied products. Partnering with Sumitomo Chemical early in the development process enables us to create higher performing seed-applied products for our customers," said Mick Messman, director, DuPont Seed Applied Technologies.

Collaborations between DuPont and Sumitomo Chemical's regional affiliate, Valent U.S.A. LLC., will focus on the North American region with potential expansion opportunities to multiple crop markets globally.

"This agreement exemplifies the power of collaboration by companies in the agriculture industry to bring growers the latest technology to improve their productivity," added Umeda. "We look forward to future collaborations with DuPont, and pursue them in the spirit of creativity and innovation on behalf of our customers."

For more information on both parties, visit www.dupont.com or www.sumitomo-chem.co.jp/english/.

About Sumitomo Chemical Company, Limited

Headquartered in Tokyo, Japan, Sumitomo Chemical is one of Japan's leading chemical companies, offering a diverse range of products globally in the fields of petrochemicals, energy and functional materials, IT-related chemicals and materials, health and crop science products, and pharmaceuticals. The company's consolidated net sales for fiscal year 2016 were JPY 2 trillion. For additional information, visit the company's website at
www.sumitomo-chem.co.jp/english/.

About Valent U.S.A. LLC

Valent U.S.A. LLC, headquartered in Walnut Creek, Calif., develops and markets products in the United States, Canada and Mexico that protect agricultural crops, enhance crop yields, improve food quality, beautify the environment and safeguard public health. Valent products include a well-known line of quality herbicide, insecticide, fungicide and crop enhancement products for agricultural, seed protection and professional use. Valent is a leader in marketing and sales of both traditional chemical products and also biorational products developed by its affiliate, Valent BioSciences LLC. For more information about Valent or our full product line, please call 800-6-VALENT (682-5368) or visit valent.com.

About DowDuPont Agriculture Division

DowDuPont Agriculture, a business division of DowDuPont (NYSE: DWDP), combines the strengths of DuPont Pioneer, DuPont Crop Protection and Dow AgroSciences. Together, the Agriculture Division provides growers around the world with the most complete portfolio in the industry, developed through a robust research pipeline across germplasm, biotech traits and crop protection. DowDuPont Agriculture is committed to delivering innovation, helping growers increase productivity and ensuring food security for a growing global population. DowDuPont intends to separate the Agriculture Division into an independent, publicly traded company. More information can be found at www.dow-dupont.com.

Cautionary Statement About Forward-Looking Statements

This communication contains "forward-looking statements" within the meaning of the federal securities laws, including Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. In this context, forward-looking statements often address expected future business and financial performance and financial condition, and often contain words such as "expect," "anticipate," "intend," "plan," "believe," "seek," "see," "will," "would," "target," similar expressions, and variations or negatives of these words.

On December 11, 2015, The Dow Chemical Company ("Dow") and E. I. du Pont de Nemours and Company ("DuPont") announced entry into an Agreement and Plan of Merger, as amended on March 31, 2017, (the "Merger Agreement") under which the companies would combine in an all-stock merger of equals transaction (the "Merger Transaction"). Effective August 31, 2017, the Merger Transaction was completed and each of Dow and DuPont became subsidiaries of DowDuPont Inc. ("DowDuPont"). For more information, please see each of DowDuPont's, Dow's and DuPont's latest annual, quarterly and current reports on Forms 10-K, 10-Q and 8-K, as the case may be, and the joint proxy statement/prospectus included in the registration statement on Form S-4 filed by DowDuPont with the SEC on March 1, 2016 (File No. 333- 209869), as last amended on June 7, 2016, and declared effective by the SEC on June 9, 2016 (the "Registration Statement") in connection with the Merger Transaction.

Forward-looking statements by their nature address matters that are, to different degrees, uncertain, including the intended separation of DowDuPont's agriculture, materials science and specialty products businesses in one or more tax efficient transactions on anticipated terms (the "Intended Business Separations"). 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 DowDuPont's, Dow's or DuPont's actual results to differ materially from those projected in any such forward-looking statements include, but are not limited to; (i) successful integration of the respective agriculture, materials science and specialty products businesses of Dow and DuPont, including anticipated tax treatment,

unforeseen liabilities, future capital expenditures, revenues, expenses, earnings, productivity actions, economic performance, indebtedness, financial condition, losses, future prospects, business and management strategies for the management, expansion and growth of the combined operations; (ii) impact of the divestitures required as a condition to consummation of the Merger Transaction as well as other conditional commitments; (iii) achievement of the anticipated synergies by DowDuPont's agriculture, materials science and specialty products businesses; (iv) risks associated with the Intended Business Separations, including those that may result from the comprehensive portfolio review undertaken by the DowDuPont board, changes and timing, including a number of conditions which could delay, prevent or otherwise adversely affect the proposed transactions, including possible issues or delays in obtaining required regulatory approvals or clearances related to the Intended Business Separations, disruptions in the financial markets or other potential barriers; (v) the risk that disruptions from the Intended Business Separations will harm DowDuPont's business (either directly or as conducted by and through Dow or DuPont), including current plans and operations; (vi) the ability to retain and hire key personnel; (vii) potential adverse reactions or changes to business relationships resulting from the completion of the merger or the Intended Business Separations; (viii) uncertainty as to the long-term value of DowDuPont common stock; (ix) continued availability of capital and financing and rating agency actions; (x) legislative, regulatory and economic developments; (xi) potential business uncertainty, including changes to existing business relationships, during the pendency of the Intended Business Separations that could affect the company's financial performance and (xii) unpredictability and severity of catastrophic events, including, but not limited to, acts of terrorism or outbreak of war or hostilities, as well as management's response to any of the aforementioned factors. These risks, as well as other risks associated with the merger and the Intended Business Separations, are more fully discussed in (1) the Registration Statement and (2) the current, quarterly and annual reports filed with the SEC by DowDuPont and to the extent incorporated by reference into the Registration Statement, by Dow and DuPont. While the list of factors presented here is, and the list of
factors presented in the Registration Statement are, considered representative, no such list should be considered to be a complete statement of all potential risks and uncertainties. Unlisted factors may present significant additional obstacles to the realization of forward-looking statements. Consequences of material differences in results as compared with those anticipated in the forward-looking statements could include, among other things, business disruption, operational problems, financial loss, legal liability to third parties and similar risks, any of which could have a material adverse effect on DowDuPont's, Dow's or DuPont's consolidated financial condition, results of operations, credit rating or liquidity. None of DowDuPont, Dow or DuPont assumes any obligation to publicly provide revisions or updates to any forward-looking statements whether as a result of new information, future developments or otherwise, should circumstances change, except as otherwise
required by securities and other applicable laws.

Sumitomo Chemical's Cautionary Statement about Forward-Looking Statements

Statements made in this release with respect to Sumitomo Chemical's current plans, estimates, strategies and beliefs that are not historical facts are forward-looking statements about the future performance of Sumitomo Chemical. These statements are based on Sumitomo Chemical's assumptions and beliefs in light of the information currently available to it, and involve risks and uncertainties. The important factors that could cause actual results to differ materially from those discussed in the forward-looking statements include, but are not limited to, general economic conditions in Sumitomo Chemical's markets; demand for, and competitive pricing pressure on, Sumitomo Chemical's products in the marketplace; Sumitomo Chemical's ability to continue to win acceptance for its products in these highly competitive markets; the success of Sumitomo Chemical's research or development activities; and movements of currency exchange rates. Undue reliance should not be placed on the forward-looking statements contained in this release, which are current only as of the date of this release. Sumitomo Chemical disclaims any current intention or obligation to update any forward-looking statements or any of the factors that may affect actual results.

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