Garratt Senior Vice President, President, Color, Additives and Inks, EMEA Joel R. Total attainment for consolidated Avient and Color, Additives and Inks ("CAI") (applicable for Mr. Garratt Senior Vice President, President, Color, Additives and Inks, EMEA Joel R.

These regulations prohibit discrimination against qualified individuals based on their status as protected veterans or individuals with disabilities, and prohibit discrimination against all individuals based on their race, color, religion, sex, national origin, sexual orientation or gender identity. 12.12 Both parties shall act in compliance with all applicable (inter)national privacy laws, rules, regulations and standards, including guidelines and decisions of the European Data Protection Board, in connection with the performance of the Agreement.

Senior Vice President, Global Operations and Process Improvement WOON KEAT MOH Senior Vice President, President of Color, Additives and Inks CHRISTOPHER L.

No. 10231X Form W-9 (Rev. 10-2018) AVIENT CORPORATION AVIENT COLORANTS USA LLC ✔ 5 E 33587 WALKER ROAD AVON LAKE, OH 44012 3 4 1 7 3 0 4 8 8 1/15/2021 Form W-9 (Rev. 10-2018) Page 2 By signing the filled-out form, you: 1.

Garratt Senior Vice President, President, Color, Additives and Inks, EMEA Joel R. Total attainment for consolidated Avient and Color, Additives and Inks ("CAI") (applicable for Mr. Garratt Senior Vice President, President, Color, Additives and Inks, EMEA Joel R.

Garratt Senior Vice President, President, Color, Additives and Inks, EMEA Lisa K. Garratt, Senior Vice President, President, Color, Additives and Inks, EMEA 15,491 54,950 — Lisa K. Garratt Senior Vice President, President, Color Additives and Inks, EMEA Lisa K.

In addition, contributions to non-profit organizations that knowingly discriminate based on race, gender, sexual orientation, gender identity, age, color, religion, national origin, disability, genetic information, protected veteran’s status, or other legally protected classifications are prohibited.

In addition, contributions to non-profit organizations that knowingly discriminate based on race, sex, sexual orientation, gender identity, age, color, religion, national origin, disability, genetic information, protected veteran’s status, or other legally protected classifications are prohibited.

Our expanding portfolio of offerings includes colorants, advanced composites, functional additives, engineered materials, and Dyneema®, the world’s strongest fiber™. Garratt Former Senior Vice President, President of Color, Additives and Inks, EMEA Leadership Transitions. Total attainment for our Color, Additives and Inks ("CAI") business segment under the 2024 Annual Incentive Program was 176.5%, with the components consisting of (dollars in millions): PROXY STATEMENT 2025 | Annual Meeting of Shareholders 50 2024 CAI Plan Annual Incentive Program* (Garratt) Adjusted Operating Income (CAI) 59.5% $269.8 $289.3 $308.4 $303.1 172.1% Adjusted Operating 10.5% $312.7 $330.0 $347.3 $350.7 200% Working Capital as a % of Sales (CAI) 20.0% 11.7% 11.3% 10.9% 10.9% 190.5% Sustainability See above disclosure for more information about Total Attainment 176.5% *Adjusted operating income (performance measures and results) reported in the table above was calculated with adjustments for foreign exchange (as noted on Appendix A) pursuant to the terms of the awards and as approved by the Compensation Committee.

Business division Scope 1 emissions (metric ton CO2e) Global Color, Additives and Inks 4,930 Global Specialty Engineered Materials 3,176 Masterbatch 5,593 Avient Corporate 4,077 Avient Distribution 651 C-CE7.4/C-CH7.4/C-CO7.4/C-EU7.4/C-MM7.4/C-OG7.4/C- ST7.4/C-TO7.4/C-TS7.4 (C-CE7.4/C-CH7.4/C-CO7.4/C-EU7.4/C-MM7.4/C-OG7.4/C-ST7.4/C-TO7.4/C-TS7.4) Break down your organization’s total gross global Scope 1 emissions by sector production activity in metric tons CO2e. Business division Scope 2, location-based (metric tons CO2e) Scope 2, market-based (metric tons CO2e) Global Color, Additives and Inks 35,964 24,542 Global Specialty Engineered Materials 39,013 18,262 Masterbatch 54,474 44,360 Avient Corporate 4,795 388 Avient Distribution 714 25 C-CE7.7/C-CH7.7/C-CO7.7/C-MM7.7/C-OG7.7/C-ST7.7/C- TO7.7/C-TS7.7 (C-CE7.7/C-CH7.7/C-CO7.7/C-MM7.7/C-OG7.7/C-ST7.7/C-TO7.7/C-TS7.7) Break down your organization’s total gross global Scope 2 emissions by sector production activity in metric tons CO2e.