In this press release, statements that are not reported financial results or other historical information are "forward looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks, including recessionary conditions; the current and potential future impact of the COVID-19 pandemic on our business, results of operations, financial position or cash flows, including without limitation, any supply chain and logistics issues; changes in polymer consumption growth rates and laws and regulations regarding plastics in jurisdictions where we conduct business; fluctuations in raw material prices, quality and supply, and in energy prices and supply; production outages or material costs associated with scheduled or unscheduled maintenance programs; unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; information systems failures and cyberattacks; amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; any material adverse changes in the Dyneema Business; our ability to achieve the strategic and other objectives relating to the Acquisition, and the possible sale of the Distribution business segment; and other factors described in our Annual Report on Form 10-K for the year ended You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the

Engagement in mentoring can provide a variety of benefits to both parties, including the cultivation of leadership skills, the expansion of a professional network, and building a trusted relationship outside of reporting lines. Reporting CDP Climate Change Report

Bob Lee, marketing director, Color & Additives Asia, will present “Color Matters,” an exploration of the way color affects consumers plus the Asia unveiling of PolyOne’s newest Color Inspirations 2020 Visionary collection. 2020 Color Inspiration Visionary Collection is aligned with global megatrends and includes four progressive and dynamic color palettes.

Building on the 2020 launch of reSound™ R recycled content thermoplastic elastomers (TPEs) created with Oceanworks recycled plastics, Oceanworks was selected in 2020 as a breakthrough venture to be incubated under AEPW's Innovation program with early-stage startup accelerator, Plug and Play.

PP BLUE 2154C 2020/2021 TRI-BLUE 2154C 2020/2021

Number: BC1228188 CERTIFICATE OF CHANGE OF NAME BUSINESS CORPORATIONS ACT I Hereby Certify that POLYONE CANADA ULC changed its name to AVIENT CANADA ULC on January 15, 2021 at 12:13 PM Pacific Time. Issued under my hand at Victoria, British Columbia On January 15, 2021 CAROL PREST Registrar of Companies Province of British Columbia Canada ELECTRONIC CERTIFICATE

January 31, 2023 PARIS, France – January 31, 2023 – Today, Avient Corporation announced it will be highlighting solutions that can increase the durability of healthcare products and help improve the sustainability of medical devices and pharmaceutical packaging at Pharmapack 2023.

TAILORING TACK BY BLENDING VERSAFLEX PF Film Thickness: 39 micron LDPE/13 micron Versaflex PF F = Final tack after 7 days @ 25° C i = Initial tack after 20 mins @ 25° C Pe el S tr en gt h on S te el , N /2 5m m Pe el S tr en gt h on S te el , N /2 5m m PEEL STRENGTH ON STAINLESS STEEL Film Thickness: 51 micron LDPE/25 micron Versaflex PF F F F F F F F i i i i i i i www.avient.com Copyright © 2020, Avient Corporation. Values reported as “typical” or stated without a range do not state minimum or maximum properties; consult your sales representative for property ranges and min/max specifications.

Composite panels for modular ISO shelters, transport containers and pallets TRANSPORTATION Rail car doors, floors and body panels, shipping containers, tractor trailer panels, large trucks, trailers, RVs, and mass transit vehicles MARINE Structural bulkheads, transoms, decks/soles, subflooring, and interior walls www.avient.com Copyright © 2020, Avient Corporation. Values reported as “typical” or stated without a range do not state minimum or maximum properties; consult your sales representative for property ranges and min/max specifications.

The company also announced that it has issued its latest Sustainability Report, available at www.avient.com/sustainability. Our sustainability report offers a transparent look into where we are focused, how we are leading and what this ultimately means for our many stakeholders, as well as our planet.” For more information, visit www.avient.com/. 4 Forward-looking Statements In this press release, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995.