Substance Safety Summary SUBSTANCE: Antimony Trioxide GENERAL STATEMENT Antimony trioxide is a naturally occurring mineral found in the earth’s crust. There is no known data indicating that ATO can readily leach out of the products where it is used in a manner that represents significant risk for consumers. EXPOSURE HUMAN HEALTH SAFETY ASSESSMENT Human Health Consumers are not likely to be exposed to because it is not sold directly to consumers nor are sales to consumer markets endorsed.

TAKE THE HEAT FLEX, RETURN, REPEAT PROCESSED & RAW FOOD PHARMACEUTICAL PRODUCTS FORESTRY PRODUCTS RECYCLED MATERIALS MINED/QUARRIED ROCK, ORE, COAL, SAND POWDER AGRICULTURAL PRODUCTS Avient composite springs are tested to 1.5+ million cycles with no loss of spring rate. 1.5+ MILLION CYCLES Avient composite springs maintain performance levels even in high temperature applications up to 300°F. 300° FAHRENHEIT • Composites are up to 70% lighter than steel. • Composites resist corrosion; steel rusts easily unless it is painted or coated. 70% LIGHTER TRADITION OF EXCELLENCE Based on the proven performance of Gordon Glass™, the material of choice in composite archery bow limbs since 1953, our thermoset composite springs deliver unmatched strength & deflection for the most demanding applications. STEEL RAISE THE BAR on fatigue life and design flexibility with unidirectional thermoset composite springs for vibratory sorting and conveyors.

Whether an additional line at an existing manufacturing plant, or a new facility in a growing region, we ramp-up quickly and cost-efficiently. 43 Capex / Revenue 2022E (%) AV I E N T I S A S S E T L I G H T Avient Specialty Formulators Other Chemical/Specialty Companies 2 3 2 2 2 3 4 3 3 5 5 7 7 8 11 A vi en t A vi en t P F F U L K W R P P G R P M A V Y F M C H U N H X L E C L E M N C E A S H S C L Source: Peer data per Bloomberg market data as of April 21, 2022. Source: Peer data per Bloomberg market data as of April 21, 2022 86 82 86 86 84 78 77 89 86 81 80 76 76 76 67 67 11 (12) A vi en t A vi en t P F F U L K W R P P G R P M A V Y F M C U N V R B N R H U N H X L E C L C E A S H E M N S C L A LB 12% 18% 16% 15% 15% 14% 14% 28% 28% 26% 25% 22% 21% 19% 16% 12% 9% 9% A vi en t T od ay A vi en t P F A V Y P P G K W R FU L R P M C E A LB FM C A S H E C L E M N H X L H U N S C L B N R U N V R Median: 21%Median: 15% 2 0 2 2 E B I T DA M A RG I N S V S . Financials are pro forma for the acquisition of Dyneema® and potential divestiture of Distribution Avient Specialty Formulators Other Specialty / Chemical Companies 45 Source: Peer data per Bloomberg market data as of April 21, 2022 Total Enterprise Value / NTM EBITDA With the Dyneema and Clariant Color business acquisition and divestment of the PP&S business, along with the proposed sale of our Distribution business, our exposure is now concentrated in less-cyclical and high-growth markets.

July 2024 POSITION ON BIODIVERSITY Avient Corporation is committed to ensuring our operations meet applicable regulations for performance, safety, and environmental due diligence. It is Avient’s expectations that our employees follow this policy and do their part to properly report environmental data, share ideas, and foster a culture around sustainability.

Supplier shall comply with all applicable laws and regulations including requirements related to the privacy and security of Data and IT Systems. Supplier shall report any irregularity with respect to safety, health and environment and security. Supplier expressly warrants neither to process any Avient’s personal data nor those of its suppliers on Avient’s behalf, before entering into Avient’s Data Usage and Protection Agreement (DPA) nor to involve any subcontractors in processing any such personal data without its prior written consent.

Health and Safety • Implement appropriate processes and procedures to ensure that human health and safety are at the forefront of your actions. Comply with all applicable environmental, health, safety, and security regulations. Establish an information security and data privacy system to protect Avient’s information, including information of its customers and associates, from being disclosed, changed, destroyed, or used for any purpose other than the purpose for which it was provided.

Technical Data Sheets Safety Data Sheets Safety Data Sheets

Technical Data Sheets Safety Data Sheets Safety Data Sheets

Technical Data Sheets Safety Data Sheets Safety Data Sheets

Technical Data Sheets Safety Data Sheets Safety Data Sheets