<h2><p style="color:white">DuPont announces two updated fire listings for DuPont™ ArmorWall™ Systems through ICC-ES</h2>

Enables designers to confidently design a wall assembly with ArmorWall™
Systems since it has been evaluated by International Code Council Evaluation Services for fire endurance ratings

The ESL-1302 is for ASTM E119: Standard Test Methods for Fire Tests of Building Construction and Materials, which tests the building enclosure assembly to withstand fire burning through the wall for stated endurances. ArmorWall™ Systems also received ESL-1442 for NFPA 285: Standard Fire Test Method for Evaluation of Fire Propagation Characteristics of Exterior Wall Assemblies Containing Combustible Components, which regulates combustible components and the flammability of exterior, non-load bearing wall assemblies.

“An ESL provides project teams with third-party verified performance of fire resistance, which helps keep occupants safe in the event of a fire, said Jarrett Davis, Principal Building Scientist at DuPont Performance Building Solutions, “The ESL details how, when, where, by whom, and for how long the test was performed. It replaces the need to obtain a UL Number for each wall assembly, as it is already recognized by the ICC.”

The ICC-ES Listing Program is the most recognized in the industry. DuPont has a long history of partnering with industry leading organizations to advance both building science and quality assurance on the job. ArmorWall™ Systems already have the ICC-ESL 1306 for ASTM E330, Standard Test Method for Structural Performance of Exterior Windows, Doors, Skylights and Curtain Walls by Uniform Static Air Pressure Difference, available for use by architects and engineers.

DuPont™ ArmorWall™ Systems are premium five-in-one systems incorporating five traditional building enclosure elements into a single panel product: structural sheathing, fire-resistance, air- and water-resistive barriers, and a high-performance continuous insulation layer. ArmorWall™ Systems have undergone rigorous testing and allow projects to meet continuous insulation building codes and the tight timelines of construction schedules faster and more cost-effectively. The system can be installed in as little as one revolution by a single labor crew, saving project schedules weeks, not just days.

For complete details, visit ArmorWall.DuPont.com

About DuPont Performance Building Solutions and Corian® Design
Grounded in science, DuPont Performance Building Solutions and Corian^® Design are working alongside those who also seek a sustainable tomorrow to help people thrive at home and in their communities for years to come. By developing solutions for managing the air, water and thermal performance of buildings and residences, we help our customers build energy-efficient, resilient, and durable shelters in a rapidly changing world. Backed by unmatched industry insight, building knowledge, and technical support, as well as world-class brands such as Styrofoam^™ Brand, Tyvek^®, and Great Stuff^™, our products and services portfolio enables customers to focus on what they do best, no matter where and how they choose to build.

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.