DeLuca Vice President, Investor Relations PolyOne Corporation +1 440-930-1226 isaac.deluca@avient.com Rose Director, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com

1) Global Reporting Initiative (GRI): includes three categories of standards that provide transparency of ESG metrics to all individuals involved in an organization: Here are some ESG factors to consider when deciding on collaborations within your industry’s value chain:  1) Environmental factors

Investor contact: Isaac DeLuca Vice President, Investor Relations PolyOne Corporation +1 440-930-1226 Isaac.deluca@avient.com Media contact: Kyle Rose Director, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com

STAN-TONE HCC-108787 DARK BROWN H #1 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

DeLuca Vice President, Investor Relations PolyOne Corporation +1 440-930-1226 isaac.deluca@avient.com Media Contact: Kyle Rose Director, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com

1. This is 50 to 100 times greater than standard thermoplastics and 1/5 that of cast aluminum.

Attachment 1 Special items (1) 1)

Attachment 1 Special items (1) Tax specials - expense (Attachment 1)

Microsoft Word - Terms and Conditions of Sale for Colombia (English and Spanish Translation) TERMS AND CONDITIONS These Terms and Conditions govern the sale of Products to another (“Buyer”) by Avient Corporation and its affiliates (“Seller”). 1. TÉRMINOS Y CONDICIONES Estos Términos y Condiciones rigen la venta de Productos a terceros ("Comprador") por parte de Avient Corporation y sus afiliadas ("Vendedor"). 1.

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