Press Release Press Release Press Release

Press Release Press Release Press Release

Press Release Press Release Press Release

Press Release Press Release Press Release

Press Release Press Release Press Release

NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Fourth Quarter and Full Year 2020 Results and Provides Guidance for 2021 Fourth Quarter Results • GAAP EPS from continuing operations of $0.81 compared to $0.08 in the prior year quarter • Record fourth quarter adjusted EPS of $0.52 increased 73% compared to $0.30 pro forma* in the prior year, driven by strong organic revenue growth in all segments, improved operating margins and synergy capture from the Clariant Masterbatch acquisition • Increased dividend for the 10th consecutive year to $0.85 a share on an annualized basis Full Year Results • Completed transformational Clariant Masterbatch acquisition and renamed the company as Avient • GAAP EPS from continuing operations of $1.46 compared to $0.97 in the prior year • Adjusted EPS increased 11% to $1.93 pro forma, on strength in healthcare, packaging and consumer end markets • Specialty Engineered Materials (SEM) segment delivered record operating income of $94 million, driven by growth in composites and demand for outdoor high performance applications CLEVELAND – February 9, 2021 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable material solutions, today reported its full year and fourth quarter results for 2020. We held our priorities firm by keeping health and safety first, providing world-class service to our customers, and utilizing our unique position to aid in recovery efforts as an essential supplier throughout the world.” 2021 Outlook Commenting on the Company’s 2021 outlook, Mr. # # 3 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.

New Sustainability Report and Upcoming Sustainability Day The company also announced the release of its latest Sustainability Report, now available at www.avient.com/sustainability. Registration information to access the Sustainability Day event will be provided in a news release in advance of the event. A recording of the webcast and the slide presentation will be available at avient.com/investors/events-presentations immediately following the conference call and will be accessible for one year.

the Infrastructure Investment and Jobs Act (IIJA)—more commonly known as the Bipartisan Infrastructure Law (BIL)—authorizes funds for highways, transportation safety, and transit programs. This literature shall NOT operate as permission, recommendation, or inducement to practice any patented invention without permission of the patent owner. 1.844.4AVIENT www.avient.com ADDITIVE TECHNOLOGIES Flame retardant additives Mitigates fire hazard by reducing flame spread and heat release Anti-static and conductive additives Controls build-up of static charges to reduce risk of fire and enhance safety Antimicrobial technology Reduces bacterial, mold and fungal growth on the surface and through the thickness of the part Light spectrum management Provides UV protection to prevent discoloration or degradation of mechanical properties for lasting outdoor durability and color fastness Scratch and mar resistant additives Adds protection to stand up to surface abrasion and wear and tear COLORANT TECHNOLOGIES UL 94 colorants Over 2,000 UL 94-recognized color concentrates, including for high temperature resins Special effect colorants Visual enhancements including metallic, granite, or pearlescent appearance Bio colorants and additives For use in bio-based plastics without compromising performance TECHNOLOGIES AVAILABLE TO ENHANCE PUBLIC CHARGING STATIONS Avient supports all of these solutions with a range of world-class services, including: • Polymer material expertise with a focus on sustainability • Application development expertise with global design centers • Regulatory compliance coordination to help mitigate risk • Reliable field technical services and support • Leading color trend and design services

Substance Safety Summary SUBSTANCE: Carbon Black GENERAL STATEMENT Carbon black (subtypes are acetylene black, channel black, furnace black, lamp black and thermal black) is a material produced by the incomplete combustion of heavy petroleum products such as FCC tar, coal tar, ethylene cracking tar, and a small amount from vegetable oil. CATEGORY DETAIL EC Number 215-609-9 CAS Number 1333-86-4 Name Subclass 1 Carbon Black Structural Formula CHEMICAL IDENTITY H | C||||HH H HEALTH EFFECTS HUMAN HEALTH SAFETY ASSESSMENT Consumer Overall, as a result of the detailed epidemiological investigations, no causative link between Carbon Black exposure and cancer risk in humans has been demonstrated. COMPANY CONTACT INFORMATION corporateregulatory@avient.com ENVIRONMENTAL EFFECTS Based on its physical/ chemical properties (insolubility, no vapor pressure), Carbon Black released into the environment will be distributed mainly in soil or sediments.

The individual presenter slide presentations will be made available via PolyOne's website at the onset of the event.