Attachment 1 Special items (1) 1)

DNU Geon(TM) MNE30-168-1 NON PHTH Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

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

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

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. Rose, Vice President, Corporate Communications, Avient Corporation, +1 440-930-3162, kyle.rose@avient.com

Addressing Circular Economy Challenges with Innovative Color and Additive Solutions: presented by Derek Lua from Color & Additives Asia, April 23 at 1:10 pm How Avient Can Help with Metal Replacement for Applications in the Healthcare Industry: presented by Catherine Hu, Senior Marketing Specialist from Specialty Engineered Materials Asia, April 24 at 1:50 pm  

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. Rose, Vice President, Marketing and Communications, Avient Corporation, +1 440-930-3162, kyle.rose@avient.com

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Get Help Now +1-866-737-2066 1

Get Help Now +1-866-737-2066 ISO 10993-1, USP and (class VI), USP , European Pharmacopeia monographs 3.1.3 and 3.1.5, ICH Q3D evaluations reduce risk of non-compliance during regulatory submission