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If the parties cannot agree upon and implement such changes within sixty (60) days after such notice, Seller shall thereupon have a right to terminate the relevant purchase order(s) forthwith by written notice to Buyer. 7. Amennyiben a felek hatvan (60) napon belül nem tudnak megállapodni és a változásokat végrehajtani, Eladónak jogában áll a vonatkozó vételi megrendelés(eke)t a Vevő írásos értesítésével felmondani. 7. 7 - PAI-376902v1 version shall prevail against the Hungarian version. 18.

Avient is evolving to its next phase as an innovator of materials solutions to help our customers succeed, while enabling a sustainable world Key messages Our primary focus is on organic revenue growth and margin expansion ► intersect secular trends and high growth markets with our technologies ► catalyze growth in our core build businesses in high growth markets ► hybridization Our strategy is enabled and driven by our focus on (a) portfolio prioritization, (b) amplifying innovation, (c) digital for operational excellence and growth, and (d) leadership, talent and culture for the Avient of the future Copyright © . 2024 7 Avient at a glance $3.1B 9,000+ 80+ 100+ 2011 36% 64% by business segment Specialty Engineered Color, & Inks 2023 sales by end market 41% 36% 18% 5% US, Canada LATAM EMEA PACKAGING 23% CONSUMER 19% INDUSTRIAL 16% TRANSPORTATION 10% BUILDING & CONSTRUCTION 9% HEALTHCARE 7% DEFENSE 7% ENERGY 5% TELECOM 4% Copyright © . 2024 8 The fast-changing world creating opportunities for us... Moving up the value chain, and expanding addressable market size by providing materials solutions in select and prioritized areas MARKETS TECHNOLOGY CUSTOMER SCALE +100 to +200 bps revenue growth above GDP Copyright © . 2024 59 Pathway to 20%+ adjusted EBITDA margins • Organic volume growth and SG&A efficiencies from prioritizing resources across the company • Increased sales in higher margin growth platforms Productivity • Manufacturing & sourcing efficiencies • Footprint optimization • Digital technologies Avient margin expansion +400bps margin expansion 20%+ Strategic objective ~16% Current adjusted EBITDA margin +2% +1% +1% Copyright © . 2024 60 Organic revenue growth with margin expansion +100 to +200bps above GDP Organic revenue growth LONG TERM FINANCIAL TARGETS Copyright © . 2024 61 History of balanced capital deployment .1 6 .2 0 $0 .2 6 $0 .3 4 $0 .4 .5 0 $0 .5 8 .7 .7 9 .8 .8 8 $0 .9 6 0 8 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 Dividend $ per shareAdj.

Revision:1 For Bureau Veritas Certification Holding, Le Triangle de l'Arche, 8 Cours du Triangle - 92800 Puteaux - France Bureau Veritas Certification Certificate N°: FR072877- IATF IATF Certificate N°: 442787 Date Of Expiration: 01-February-2025 Date Of Certification: 02-February-2022 Route de la Vavrette, 01250, TOSSIAT France PolyOne France Tossiat Awarded to Appendix to the Certificate of Approval Name Address Scope AVIENT LUXEMBOURG ROUTE DE BASTOGNE, 19, 9836, POMMERLOCH Luxembourg Logistic, Supplier Management, Purchasing PolyOne Europe Logistics 7 rue Blériot, 4460, GRACE HOLLOGNE Belgium Warehousing Polyone Europe ul.

Patterson Page 46 United States 67% Europe 17% Canada 11% Asia 5% United States 60% Europe 19% Canada 9% Asia 7% Latin America 5% Customer-Driven Globalization 2006 2011* *Pro forma for the acquisition of ColorMatrix • Differentiated by our consistent service and quality offerings globally • Invested in global account management organization to serve over 100 multinational key accounts Page 47 • Leverage technology development and best practices to better serve global customers • Drive global marketing strategies for growth with target customers & markets Formation of Global Segments in 2010 • Accelerate decision making and assure consistent execution of four pillar strategy for growth with target customers & markets Page 48 Recent Investment Activity • 67% of recent commercial additions are outside the U.S

Any translations of this document shall be used for reference only.) 2/2 Appendix to the Certificate of Approval AWARDED TO PolyOne France Tossiat Route de la vavrette, 01250, Tossiat - France IATF USI: LWZS4P REMOTE SUPPORT FUNCTION(S) NAME ADDRESS SCOPE AVIENT LUXEMBOURG 19, Route de bastogne, 9638, Pommerloch - Luxembourg IATF USI: GAZS9A Purchasing, Logistics, Supplier Management PolyOne Europe Logistics 7 Rue bleriot, 4460, Grace-Hollogne - Belgium IATF USI: P4WA4Y Warehousing Polyone Poland Ul. wschdnia 6, 99-300, Kutno - Poland IATF USI: C4W5ZL Logistics https://e-cer.bureauveritas.com/68LJQE0ZV0CO6I7YW0YSXOUMV9WWROQPHPI2AOHRRLFFVRAVTFVZGXKWIE3TOWLTTKEWCPQB9UNAPXHH6T0HXOMUEDVYPRPJLEXBBTKQYPBRICYOKY143TECQ5UMHGA3JX 2024-12-13T10:07:11+0100 Authenticity and Integrity