Certificate of Incorporation AVIENT NEW ZEALAND LIMITED 64590 NZBN: 9429040671338 This is to certify that HOECHST (NEW ZEALAND) LIMITED was incorporated under the Companies Act 1955 on the 3rd day of May 1963 and changed its name to HOECHST NEW ZEALAND LIMITED on the 30th day of January 1974 and was reregistered to become a company under the Companies Act 1993 on the 3rd day of April 1995 and changed its name to CLARIANT (NEW ZEALAND) LIMITED on the 27th day of June 1997 and changed its name to AVIENT NEW ZEALAND LIMITED on the 17th day of May 2021.

We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise. Whether an additional line at an existing manufacturing plant, or a new facility in a growing region, we ramp-up quickly and cost-efficiently. 22 Capex / Revenue 2021E (%) AVIENT IS ASSET LIGHT Avient Specialty Other 3 3 3 3 3 5 5 5 5 6 8 nt nt ( xc l. We are Avient.

As SERVE builds momentum within Avient in 2023, the focus is on providing a platform for veterans to build a sense of support and community within Avient, and in the local communities where our associates work and live. Help Avient become a top employer for veterna talent Career: Offer professional mentorship for current and future veteran Avient associates

Avient has a highly-technical and broad portfolio of materials solutions that help our customers—and our planet— be more sustainable. This we expect will further the win-win benefit trend for both our planet and Avient. The ERM process is collaborative across Avient’s functions in order to identify Avient’s risks.

Avient offers a broad portfolio of technologies that help our customers—and our planet—be more sustainable. At Avient, we are committed to helping you grow your business with safe and environmentally sound solutions. Protecting associates, customers and the environment by providing safe products is a priority for Avient.

At Avient, we improve lives all over the world by solving complex material science challenges. The top priority at Avient is safety. Providing meaningful opportunities to support our associates’ development is a top priority at Avient.

At Avient, our proven ability to innovate materials that enable our customers’ sustainability goals remains a key differentiator for our company. Avient offers a broad portfolio of technologies that help our customers—and our planet—be more sustainable. From lightweighting to renewable energy applications to improved recyclability, Avient has a robust portfolio of sustainable solutions.

Avient’s portfolio delivers flame retardance, low smoke and halogen options, and materials that can withstand wide temperature variations for telecommunication applications. Avient’s portfolio enables 5G technology from a range of fiber optic cable components to antennae and base station materials, as well as 5G-enabled devices. Avient offers a full range of sustainable solutions that are WEEE and RoHS compliant, allowing higher operating temperatures with smaller footprints.

Avient Disclosures Avient 2023 Proxy Statement Pages 47-49, 51 Message from Avient's VP of Sustainability Page 17

Avient has a broad portfolio of sustainable solutions that can help customers meet their innovation and sustainable goals through material science. At Avient, we can help you solve your toughest application challenges through the latest specialty polymer, colorant, and additive technologies. Avient has a broad portfolio of sustainable solutions that can help customers meet their innovation and sustainable goals through material science.