OnFlex™ S KE Series – Scratch resistant overmold OnFlex™ S KA – High temperature usage  Overmolding Polypropylene (PP)

IATF Certificate CH-S 证书制作地点及日期: 证书认可签发机构: Katy, TX, 2024年12月 10日 DNV - Business Assurance 1400 Ravello Drive, Katy, TX, 77449-5164, USA Sherif Mekkawy 管理代表 未履行认证协议中规定条款会导致此证书失效，获证组织必须定期接受监督审核并经审核合格此证书方继续有效。

OnFlex™ S KE Series – Scratch resistant overmold OnFlex™ S KA – High temperature usage  Overmolding Polypropylene (PP)

PC-15MCF/000FC FR BLK PC-11MCF/000 FC BLK PP FR 8-6 LMS-1000

ND1233 GF BLK ND633 GF BLK PP FR 8-6 LMS-1000

GEON M6210 BLK 2975 NUSKIN WHITE PP 4% PP FR 8-6 LMS-1000

EXP [8882] 15503910101 BLK PP-16CP/000-2 BMG BLACK PP FR 8-6 LMS-1000

Moving up the value chain, and expanding addressable market size by providing materials solutions in select and prioritized areas Copyright © . 2025 9 GROWING AT GROWING AT 1 Core grows above macro driven by share wins and faster business development in prioritized portfolios (growth vectors) CATALYZE THE CORE 2 Portfolios in high growth markets grow faster than core – building sizeable businesses of scale rapidly BUILD NEW PLATFORMS OF SCALE ► Prioritizing ► differently ► Creating “space” ► focused front-end and back-end structures Copyright © . 2025 10 Organic revenue growth with margin expansion LONG TERM FINANCIAL TARGETS +100 to +200bps above GDP Organic revenue growth Copyright © . 2025 11 Pathway to 20%+ adjusted EBITDA margins Operating leverage • Organic volume growth and SG&A efficiencies from prioritizing resources across the company 2 Mix improvement • Increased sales in higher margin growth platforms 3 Productivity • Manufacturing & sourcing efficiencies • Footprint optimization • Digital technologies Avient margin expansion Schematic illustration only Productivity +400bps margin expansion 20%+ Strategic objective 16.2% 2024 adjusted +2% +1% Operating leverage +1% Mix improvement Copyright © . 2025 12 Disciplined capital allocation PRIORITIZATION AND PHILOSHOPY Capex Expected annual spend between 3-5% of revenue to support investment in organic growth M&A De-emphasized in near term; complement organic growth strategy with M&A over time, as needed 2 Dividends Increasing each year with underlying earnings growth 3 Debt pay down Target net debt to adjusted EBITDA less than 2.5x 4 Share repurchases Opportunistic buy backs 5 Copyright © . 2025 13 Avient is a compelling investment thesis 2024 Results 15Copyright © . Avient 2024 sales BUSINESS SEGMENTS END MARKETS REGIONS 63% S E M C AI 23% 4% 3% Packaging Telecom Energy Defense 41% 35% 18% US & Canada Latin America Europe, Middle East 24Copyright © . Color, Additives & Inks END MARKETS REGIONS 34% 21% 11% Packaging Telecom 1%Energy 1% 34% US & Canada Latin America Europe, Middle East Construction 25Copyright © .

PP-30GF/000 BLK PC-20GF/13T-2S BLK (LF) PP FR 8-6 LMS-1000

Leadership, EHS&S-PS, Facility Services, Design & Development, Information Technology, Sourcing, Logistics, Legal, and Human Resources 65536-21623Certificate No: Page 4 of 53 ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A. Industrial Valle del Cinca S/N Apartado Barbastro, Huesca E-22300 65536-116858Certificate No: Page 8 of 53 ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A. Avient Corporation - Guatemala City 27 Avenida 34-11, Zona 12 Complejo Parque Guatemala City 01012 Guatemala 65536-116866Certificate No: Page 15 of 53 ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A.