EST to discuss the key highlights of the expected acquisition of the Dyneema business as well as its first quarter 2022 financial results. 3 Webcast Details Avient will host a webcast on Wednesday, April 20, 2022 at 9:00 a.m. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. 5 Non-GAAP Financial Measures The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures.

GLS produces standard products ranging in hardness from 3 Shore A (softest) to 95 Shore A (hardest).

Afterward, parts need to be washed for 2 to 3 hours to remove unreacted crosslinking materials, such as zinc or sulfur.

September 3, 2014

Certificate - ISO 9001 - Avient Corporation - Avon Lake, OH - 337726 - 23521667 (3).pdf

Oversight of Risk Management The Board oversees a Company-wide approach to risk management that is designed to 8 support the achievement of the Company’s strategic objectives and improve long-term organizational performance. This guideline will be reviewed periodically to assure competitiveness. 3. External Communication Director Stock Ownership 3.

Apply classroom concepts in a real-world setting over 2-3 rotations at different Avient sites.

GLS produces standard products ranging in hardness from 3 Shore A (softest) to 95 Shore A (hardest).

3.

Addressable applications for the Plenstar series are Cat 3 to Cat 6 multi-conductor cables with a 75°C UL temperature rating, passing UL 444.