<h1><p style="color:white">DuPont Building Technologies Publishes 2026 Sustainability Progress Update</h1>

Business advances decarbonization, circularity, and sustainable innovation while helping customers prepare for evolving built environment requirements.

WILMINGTON, Del., Sept. 23, 2026 — DuPont Building Technologies today released its 2026 Sustainability Progress Update, highlighting progress towards DuPont’s 2035 sustainability goals and continued innovation to help customers address evolving sustainability challenges.

“Building owners, architects, builders and contractors face increasing expectations around energy efficiency, resilience and sustainability," said Cindy Boiter, Global Vice President and General Manager, DuPont Building Technologies. "By combining science, innovation and partnership, we're helping customers address those challenges while creating long-term value."

Key highlights include:

• Supporting DuPont’s 76% reduction in Scope 1 and 2 emissions versus the 2019 baseline
• Advancing low embodied carbon innovations, including a 94% reduction for Styrofoam™ Brand XPS Insulation
• Expanding product transparency, circularity initiatives, and life cycle assessment capabilities
• Helping customers address evolving resilience, regulatory, and sustainability requirements across the built environment

By combining science, innovation, and collaboration, DuPont Building Technologies is helping customers build what’s next.  For a copy of the full 2026 Sustainability Progress Update, click here. 

About DuPont Building Technologies

DuPont Building Technologies is a global leader in the building and construction industry, providing products and materials for both the exterior envelope and interior spaces. Architect, contractor, builder or developer, DuPont delivers a portfolio of Performance Building Solutions and Corian® Design products and services that enhance the way we live, work and play. Through science and technology, we help customers create energy-efficient, resilient, and durable buildings. Backed by unmatched industry insight, building knowledge, and technical support, including trusted brands such as Styrofoam™ Brand, Tyvek®, Great Stuff™, DuPont delivers innovative solutions that help customers build with confidence.

About DuPont

DuPont (NYSE: DD) is a global innovation leader, providing advanced solutions that help transform industries and improve everyday life across our key markets of healthcare, water, construction, and industrial. 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.

09/23/26

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.

For further information, contact:

Heather Litle

Heather.litle@dupont.com