CREATING A WORLD CLASS, SUSTAINABLE ORGANIZATION In this annual report, 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. While these are important preventative measures that protect our natural resources, we’re also committed to fixing problems related to plastic waste in the environment. RICHARDSON Executive Vice President, Chief Financial Off icer GIUSEPPE Di SALVO Vice President, Treasurer and Investor Relations CATHY K.

Investor Relations Contact: Giuseppe (Joe) Di Salvo, Vice President, Treasurer and Investor Relations, Avient Corporation, +1 440-930-1921, giuseppe.disalvo@avient.com; Media Contact: Kyle G.

Investor Relations Contact: Giuseppe (Joe) Di Salvo, Vice President, Treasurer and Investor Relations, Avient Corporation, +1 440-930-1921, giuseppe.disalvo@avient.com; Media Contact: Kyle G.

Say-Eng Lee, vice president and general manager, Color & Additives Asia says, “China and other Asian countries not only have a rapidly growing  domestic healthcare market, but they are also actively supporting Western countries for medical product manufacturing, where they need to meet strict medical- and pharma-related standards for testing, traceability, and change control of the materials used in their products. Media Relations Contacts

Alpha Tool and Mold, located in Highland Heights, Ohio, has been serving the plastic molding and die cast industries since 1978, specializing in building precision plastic injection molds, including hot runner and unscrewing types, die cast dies, and related components. Media Relations Contacts

In addition, the high flow properties allow Jager to run the material in a TandemMold (a patented product of T/Mould GmbH), which effectively doubles production volume, as well as lowers energy and related production costs by up to 40%. Improved flow = lower unit costs: High flow characteristics of the Avient solution in combination with a TandemMold result in doubled production volume for a 50% reduction in machine-related costs per part.

In addition, the high flow properties allow Jager to run the material in a TandemMold (a patented product of T/Mould GmbH), which effectively doubles production volume, as well as lowers energy and related production costs by up to 40%. Improved flow = lower unit costs: High flow characteristics of the Avient solution in combination with a TandemMold result in doubled production volume for a 50% reduction in machine-related costs per part.

OnColor™ UL 94 Colorants* • More than 2,000 recognized concentrates available worldwide in all color options • HB rating for most of PP, PS, ABS, PC/ABS, PBT, PA, PA-GF, TPU generic resins • V-0, V-1, V-2 and 5VA/5VB ratings for more than 200 specific engineering resins • Master file of recognized concentrates with scope of use accessible in the UL product finder • Development of custom products for specific resins upon request • Compliance Letters available for REACH and RoHS Cesa™ Flame Retardant Additives for Glow Wire • Fire performance in line with different levels of Glow Wire temperatures (IEC 60695-2-12) • Let-Down Ratio adjustable to reach different levels of Glow Wire temperatures • Non-halogen (in accordance with IEC 61249- 2-21) and non-HBCD** solutions • Wide range of solutions adapted to different polymers (PP, PS, PC) • Color and flame retardants can be combined in one product • Compliance Letters available for REACH and RoHS APPLICATION BULLETIN * Solutions also sold as Renol™ UL 94 Colorants APPLICATION POLYMER GWFI TEMPERATURE TYPICAL LET-DOWN RATIO CONTENT HIPS 750–960°C 5–10% Non-HBCD flame retardant** PC 850–960°C 2–4% Non-halogen in accordance with IEC 61249-2-21 PP homopolymer 850–960°C 4% Non-halogen in accordance with IEC 61249-2-21 PP copolymer 850–960°C 4–8% Antioxidant - metal deactivator ** Non-HBCD means that Hexabromocyclododecane (HBCD) is neither used as starting material during the mixing phase of our products nor intentionally added during production, but it cannot be excluded that it is not present at level of ubiquitous traces in any of the raw materials used in manufacturing of our products. In this regard “ubiquitous” means that this substance is omnipresent and its occurrence cannot be avoided by any technical, physical or chemical measure.

There are quite a few options in the mineral family, and they not only reduce cost, they can also boost strength when added to a polymer. Graphite, which can be loaded at high concentrations in the polymer, can provide high conductivity but is highly anisotropic1, meaning its conductivity changes depending on direction. Thermally conductive plastic parts may be anisotropic—meaning they conduct heat better in one direction (in the plane of the conductive filler, either axial or transverse) than in the perpendicular directions (through the plane of the filler).

Giuseppe (Joe) Di Salvo, Vice President, Treasurer and Investor Relations, Avient Corporation, +1 440-930-1921, giuseppe.disalvo@avient.com, Media Contact: Kyle G.