Qnity and SK hynix Sign Long-Term CMP Pad Supply Agreement

Strategic Collaboration to Support Advanced Semiconductor Manufacturing with High-Performance Materials

Sanjay Kotha, Global Business Director, CMP Technologies, Qnity™, DuPont Electronics (left) and SeongHan Kim, EVP, Head of Procurement, SK hynix, participated in the signing ceremony on Oct. 7, 2025, during SEMICON West in Phoenix, Ariz.

WILMINGTON, Del., Oct. 16, 2025 – Qnity, DuPont’s Electronics business, a premier technology solutions leader across the semiconductor value chain, today announced the signing of a Memorandum of Understanding (MOU) with SK hynix, establishing a strategic long-term agreement for the supply of polishing pads for chemical mechanical planarization (CMP) in semiconductor fabrication.

The agreement supports SK hynix’s ongoing needs for advanced CMP pads, used for their next-generation semiconductor manufacturing and mass production processes. It reflects the continuation of a longstanding collaboration in enabling CMP materials for SK hynix’s growing memory business.

“This agreement reflects our shared commitment to enabling advancements in the semiconductor and electronics industries through collaboration,” said Sanjay Kotha, Global Business Director, CMP Technologies, Qnity™, DuPont Electronics. “We’re proud to have a key role in supporting SK hynix’s innovation roadmap through our CMP solutions.”

The signing ceremony on Tuesday, Oct. 7, was held during SEMICON West in Phoenix, Ariz., and attended by SeongHan Kim, EVP, Head of Procurement, SK hynix; MoonHwan Lee, SVP, Head of Component Procurement & Technology, SK hynix; and Sanjay Kotha, Global Business Director, CMP Technologies, Qnity™, DuPont Electronics.

Qnity is intended to be separated from DuPont on November 1, 2025.* Qnity is a leader in CMP technology, with solutions including leading CMP pad brands like Ikonic™ and IC1000™, CMP slurries, and post-CMP cleans. Qnity recently announced the launch of the Emblem™ CMP pad platform, a next-generation product family designed for the demanding needs of chips for AI and advanced computing, including high-bandwidth memory. Emblem™ pads offer step-out CMP performance and enhanced customization options for emerging CMP process needs. 

About Qnity    
Qnity, DuPont's Electronics business, is a premier technology solutions provider across the semiconductor value chain, empowering AI, high performance computing, and advanced connectivity. From groundbreaking solutions for semiconductor chip manufacturing, to enabling high-speed transmission within complex electronic systems, our high-performance materials and integration expertise make tomorrow’s technologies possible. More information about the company, its businesses and solutions can be found at www.qnityelectronics.com. Investors can access the initial Form 10 filing and amendments for Qnity on its investor website.

Qnity™, the Qnity Node Logo, and all products, unless otherwise noted, denoted with ™ or ^® are trademarks, trade names or registered trademarks of affiliates of Qnity Electronics, Inc.

About DuPont
DuPont (NYSE: DD) is a global innovation leader with technology-based materials and solutions that help transform industries and everyday life. Our employees apply diverse science and expertise to help customers advance their best ideas and deliver essential innovations in key markets, including electronics, transportation, construction, water, healthcare, and worker safety. More information about the company, its businesses, and solutions can be found at www.dupont.com. Investors can access information included on the Investor Relations section of the website at investors.dupont.com.

DuPont™, the DuPont Oval Logo, and all trademarks and service marks denoted with ™, ℠ or ^® are owned by affiliates of DuPont de Nemours, Inc. unless otherwise noted.

* On January 15, 2025, DuPont de Nemours, Inc. (“DuPont”) announced it is targeting November 1, 2025 to complete the intended separation of its Electronics business (the “Intended Electronics Separation”) by way of a spin-off transaction, thereby creating Qnity Electronics, Inc., a new independent, publicly traded electronics company. The Intended Electronics Separation will not require a shareholder vote and is subject to satisfaction of customary conditions, including final approval by DuPont’s Board of Directors, receipt of tax opinion from counsel, the completion and effectiveness of a Form 10 registration statement with the U.S. Securities and Exchange Commission, applicable regulatory approvals and satisfactory completion of financing. 

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This release contains forward-looking statements. Forward-looking statements use words such as "plans", "expects", "will", "would", "anticipates", "believes", "intends", "seeks", "projects", "efforts", "estimates", "potential", "continue", "intend", "may", "could", "should" and similar expressions, among others, as well as other words or expressions referencing future events, conditions or circumstances. Statements that describe or relate to DuPont's or Qnity's plans, goals, intentions, strategies, DuPont's or Qnity's expectations regarding the Spin-Off, and statements that do not relate to historical or current fact, are examples of forward-looking statements. Forward-looking statements are based on our current beliefs, expectations and assumptions, which may not prove to be accurate, and involve a number of known and unknown risks and uncertainties, many of which are out of DuPont's and Qnity's control. Forward-looking statements are not guarantees of future performance, and there are a number of important factors that could cause actual outcomes and results to differ materially from the results contemplated by such forward-looking statements. Additional information concerning these and other factors can be found in DuPont's and Qnity's filings with the U.S. Securities and Exchange Commission, including DuPont's most recent annual report on Form 10-K, most recent quarterly report on Form 10-Q and current reports on Form 8-K and Qnity's registration statement on Form 10. Any forward-looking statement speaks only as of the date on which it is made. Neither DuPont nor Qnity undertake any obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by applicable law.