Common regulations • REACH SVHC, RoHS 3 (EU 2015/863), CA Prop 65, Heavy Metals (CONEG, 94/62/EC) and Conflict Minerals • Substances of Concern (could include phthalates, latex, PVC, BPA, halogens, PAH, flame retardants) Other market-specific regulations • Consumer Product Safety Improvement Act of 2008 (CPSIA) - Lead and phthalate limits for products designed for children • Chemicals of High Concern for Children (CHCC) - Several US states (OR, WA, VT, ME, MN) have lists of chemicals of concern for products designed for children • Global Automotive Declarable Substance List (GADSL) - Specifically for automotive applications • End of Life Vehicles (ELV) Directive, 2000/53/EC - Restrictions on certain heavy metals for .

Поммерлох, Люксембург 19 Route de Bastogne Pommerloch, Luxembourg, L-9638 Телефон: +352 269 050 35 Факс: +352 269 050 45 www.avient.com http://www.avient.com

All Rights Reserved 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 1 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 © .

OnFlex™ LO meets VIAQ standards for low VOC/FOG and reduced processing time (English language version) OnFlex™ LO meets VIAQ standards for low VOC/FOG and reduced processing time (Spanish language version)

Francisco Nakasato, 1700 13295-000 Itupeva Sao Paulo, Brazil Telephone: +55 11 4593 9200 Europe Regional Headquarters Pommerloch, Luxembourg 19 Route de Bastogne Pommerloch, Luxembourg, L-9638 Telephone: +352 269 050 35 Fax: +352 269 050 45 www.avient.com http://www.avient.com

Francisco Nakasato, 1700 13295-000 Itupeva Sao Paulo, Brasil Telepon: +55 11 4593 9200 Eropa Kantor Pusat Regional Pommerloch, Luksemburg 19 Route de Bastogne Pommerloch, Luksemburg, L-9638 Telepon: +352 269 050 35 Faks: +352 269 050 45 www.avient.com http://www.avient.com

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▲ U.S. consumer sentiment and GDP growth stays robust ▲ China trade war and tariffs de-escalate ▲ European economy improves due to increased infrastructure spend ▲ Continued strength in defense and healthcare markets ▼ Global trade uncertainty / volatility ▼ Persistent inflation and slowdown in global economies ▼ Supply chain disruptions resulting from global trade policy changes ▼ FX volatility ACCELERATORS DECELERATORS 13Copyright © .

19 Route de Bastogne Pommerloch, Luxembourg, L-9638

We are Avient. 6 B ET T E R TO G E TH E R : P O LYO NE A N D C L A R I A N T C O LO R Key Financial Data (1) 2021E Sales $4.75 billion 2021E EBITDA $580 million 87% of EBITDA from specialty applications (1) As of October 28, 2021 webcast Synergies ($ millions) Three-Year Estimate Administrative $ 20 Sourcing 30 Operational 25 Total Synergies $ 75 7 C L A R I A N T C O S T S Y N ERG I E S • On-track to realize $50 million of expected synergies in 2021 – up from earlier estimate of $35 million • Relentless focus on guiding principles for acquisition integration: safety first, employee collaboration and exceeding customer expectations • Future revenue synergies in excess of $50 million by 2025 are not part of these estimates and represent additional growth over the long term 8 • Barrier technology • Functional additives • Processing aids • Flame retardants • Light-weighting additives Complementary Technologies • Clariant’s approved formulations and certified facilities • Legacy PolyOne’s leading share in distribution channels Healthcare Solutions • Clariant’s position in SE Asia, Latin America, Germany & Italy • Legacy PolyOne’s position in U.S., Canada and China Regional Strengths • Solutions with Avient’s engineered materials customers • Avient’s distribution channels Segment Cross-selling C O M P L E M E NTA RY T E C H N O LOG I E S A N D C U S TO M ER S D R I V E R E V E N U E S Y N E RG I E S Revenue synergy opportunities in excess of $50M by 2025 The complementary aspects of our combined businesses are unquestionable.