We are better together through: Keeping Safety First — PolyOne and Clariant are both ACC Responsible Care® companies, and nothing is more important than the health, safety and well-being of our people. Avient Total Enterprise Value Pro forma for acquisition of Clariant Masterbatch business and tax payments associated with the PP&S divestiture per Company filings, resulting in a cash adjustment from the June 30, 2020 balance sheet of ~$1,520MM 2. Consensus EBITDA of $460M per Bloomberg Source: Capital IQ market data as of August 24, 2020 Median: 14.1x Median: 10.1x O U R VA LUATI O N V E R S U S P E E R S Avient Specialty Formulators Other Chemical/Specialty Companies S U M M A RY: W H Y I N V E S T I N AV I E N T ?

Nel caso in cui l'Acquirente non adempia a qualsivoglia obbligo di pagamento entro la relativa data stabilita, a decorrere dal giorno successivo a tale data, il Venditore avrà il diritto di addebitare interessi di mora su qualsiasi importo dovuto e non ancora pagato, ad un tasso che sarà il minore tra (i) il tasso ufficiale di riferimento registrato dalla Banca Centrale Europea in tale data, incrementato dell'8% e (ii) il tasso di interesse massimo applicabile ai sensi del diritto italiano alla stessa data. Buyer acknowledges that information in Seller’s marketing materials, technical data sheets and other descriptive publications distributed or published on its websites may vary from time to time without notice. Buyer acknowledges that Seller has furnished to Buyer Safety Data Sheets, which include warnings together with safety and health information concerning the Product and/or the containers for such Product.

We are better together through: Keeping Safety First — PolyOne and Clariant are both ACC Responsible Care® companies, and nothing is more important than the health, safety and well-being of our people. D is t. ) R P M P P G K W R F U L A V Y G C P IF F F M C H X L H U N E M N F O E E C L K R A S C L A S H C E G R A A L B Median: 5%Median: 3% Source: Peer data per Bloomberg market data as of February 5, 2021 Avient reflects 2021 estimated revenue of $4,100M and excludes one-time synergy capture CAPEX ($20M) Avient Specialty Formulators Other Chemical/Specialty Companies Free Cash Flow Conversion (1) 2021E (%) Being asset light helps us to generate strong free cash flow that is in line with specialty formulators. Free cash flow conversion calculated as (EBITDA – Capex) / EBITDA Median: 83% Median: 76% H I G H F R E E C A S H F L OW C O N V E R S I O N Avient reflects 2021 estimated EBITDA of $510M and excludes one-time synergy capture CAPEX ($20M) Source: Peer data per Bloomberg market data as of February 5, 2021 85 87 86 86 81 81 59 92 88 81 79 79 79 76 76 75 73 67 67 64 60 7 A vi e n t P P G K W R R P M F U L A V Y G C P IF F F M C U N V R H X L E M N B N R E C L C E A S H F O E G R A H U N K R A S C L A L B Source: Peer data per Bloomberg market data as of February 5, 2021 Total Enterprise Value / 2021E EBITDA Our current valuation implies an EBITDA multiple that is significantly below specialty formulator peers and our historic valuations, when the company had considerable exposure to more cyclical and challenging end markets.

The presentations will do a deep dive on the eight ways we approach sustainability, which include lightweighting, reduced energy use, sustainable infrastructure and human health & safety, to name a few.” Rose Vice President, Marketing and Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com 7 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended March 31, 2023 2022 Sales $ 845.7 $ 892.2 Operating Income 57.1 102.2 Net income from continuing operations attributable to Avient shareholders 20.8 64.4 Basic earnings per share from continuing operations attributable to Avient shareholders $ 0.23 $ 0.70 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.23 $ 0.70 Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results. Three Months Ended March 31, 2023 2022 Sales: Color, Additives and Inks $ 537.0 $ 649.5 Specialty Engineered Materials 309.7 243.1 Corporate (1.0) (0.4) Sales $ 845.7 $ 892.2 Gross margin: Color, Additives and Inks $ 162.0 $ 192.1 Specialty Engineered Materials 93.9 68.4 Corporate (8.3) (6.1) Gross margin $ 247.6 $ 254.4 Selling and administrative expense: Color, Additives and Inks $ 96.4 $ 97.6 Specialty Engineered Materials 50.8 30.1 Corporate 43.3 24.5 Selling and administrative expense $ 190.5 $ 152.2 Operating income: Color, Additives and Inks $ 65.6 $ 94.5 Specialty Engineered Materials 43.1 38.3 Corporate (51.6) (30.6) Operating income $ 57.1 $ 102.2 Depreciation & amortization: Color, Additives and Inks $ 25.8 $ 26.0 Specialty Engineered Materials 21.2 7.8 Corporate 3.5 3.8 Depreciation & Amortization $ 50.5 $ 37.6 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 91.4 $ 120.5 Specialty Engineered Materials 64.3 46.1 Corporate (48.1) (26.8) Other income (expense), net 0.7 (0.6) EBITDA $ 108.3 $ 139.2 13 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses gross margin before special items and operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance.

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Environmental, Health and Safety 4. MINE SAFETY DISCLOSURES Not applicable. Environmental, Health and Safety 4.

FDA合规性支持 符合国家详细目录 REACH认证一一欧盟法规 《化学品注册、评估、许可和限制》 《关于限制在电子电器设备中使用某些有害成分的指令》 (RoHS) 《废弃电子电气设备指令》 (WEEE)合规性支持 数据输入国际材料数据库系统 (IMDS) 包括安全数据表 (SDS) 和标签的危险通知标准 加州第65号提案 欧洲食品接触法规 个人客户受限物质清单 药品管理档案 医疗应用文档 食品药品监督管理局(FDA)认证 饮用水认证 Colorant Chromatics 的产品管理用来加强公司的商业行为， 与适用的法规要求和行业标准保持一致。

Health and Safety • Implement appropriate processes and procedures to ensure that human health and safety are at the forefront of your actions. Comply with all applicable environmental, health, safety, and security regulations. Version: May 2025 mailto:sourcing@avient.com Health and Safety Environment Social Ethics and Governance Management Systems

Substance Safety Summary SUBSTANCE: Antimony Trioxide GENERAL STATEMENT Antimony trioxide is a naturally occurring mineral found in the earth’s crust. There is no known data indicating that ATO can readily leach out of the products where it is used in a manner that represents significant risk for consumers. EXPOSURE HUMAN HEALTH SAFETY ASSESSMENT Human Health Consumers are not likely to be exposed to because it is not sold directly to consumers nor are sales to consumer markets endorsed.

July 2024 POSITION ON BIODIVERSITY Avient Corporation is committed to ensuring our operations meet applicable regulations for performance, safety, and environmental due diligence. It is Avient’s expectations that our employees follow this policy and do their part to properly report environmental data, share ideas, and foster a culture around sustainability.