Avient’s robust portfolio of products and services from its legacy businesses – PolyOne and Clariant Masterbatch – is complemented by its global healthcare industry expertise as well as application development, regulatory, and quality services to provide an unparalleled offering. NOTE: On July 1, 2020, PolyOne and Clariant Masterbatch joined together as Avient, a new kind of materials company focused on conquering customer challenges and unlocking the potential for innovation and sustainability around the globe.

Pro forma for the acquisition of Clariant Masterbatch, the company noted sales for October and November increased 5.4% over the same months in the prior year.  to Work® employee engagement survey, inclusive of our newly added associates from Clariant.  Reconciliation of Non-GAAP Financial Measures (Unaudited)(Dollars in millions, except per share data)

We kept safety first, used service as our timeless diff erentiator, and executed our proven four-pillar strategy. We do this through our safety focus, benefits, and lifestyle programs. Environmental, Health and Safety 4.

MEVOPUR Chemical Foaming Agents Application Bulletin_CN 可持续发展关注的焦点 应用公告 用于医疗器械和药品包装的 MEVOPUR 化学发泡剂（CFA）™ 随着将可持续性融入医疗保健产品设计的需求不 断增长，医疗器械和药品包装制造商正在寻找更 环保的材料。 埃万特依托在汽车塑料部件用化学发泡剂 和医疗保健应用聚合物解决方案开发方面的综合 经验，最终开发出MEVOPUR 化学发泡剂。

expectations: US & Canada LATAM EMEA Asia • Net price benefit remains greater than wage and energy inflation • Clariant synergies and reduced administrative costs Q2 2 023 SEQUENTI AL SAL ES BY REGI ON Q 2 2 0 2 3 v s . Global Compact • Highlights ESG Performance, including ratings, awards, and certifications • Features increased carbon emissions disclosures, including Climate Change Scenario Analysis and Scope 3 emissions data • Outlines Sustainable Supplier Program, designed to enable supplier evaluation & collaboration • Reflects Great Place To Work® culture focused on safety, employee engagement and advancing diversity, equity and inclusion 20 22 SUSTAI NA BILI TY REPORT 15 Avient Confidential 16 • Virtual presentation to be held September 20, 2023 • Leadership will be conducting an investor-focused presentation around our sustainable solutions portfolio • Deep dive into how we enable customers to achieve their sustainability goals SUSTAINABILITY DAY 16 …are Growing at Twice the Rate as Conventional Products Sustainably-Branded Products… STAKEHOLD ER INFLUENC E D RI VES D EMA ND Consumers Are demanding recyclability and eco- conscious products Governments Are mandating changes through legislation, taxes, and regional accords Brand Owners Have committed to ambitious goals to achieve sustainability metrics 17 A P P E N D I X 20 Performance Additives 16% Pigments 12% TiO2 10% Dyestuffs 2% Polyethylene 11% Nylon 6% Polypropylene 5% Styrenic Block Copolymer 5% Other Raw Materials 33% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 2022 pro forma results for the acquisition of Avient Protective Materials RA W MATERI AL BA SKET PEER COMPARISONS AVI ENT I S ASSET LI GHT Capex / Revenue 2023E (%) Avient Specialty Formulators Other Specialty / Chemical Companies Source: Peer data per Bloomberg as of July 21, 2023 Note: Avient reflects 2023 estimated revenue of $3,280 and estimated run-rate CAPEX of $110M. 22 3 2 3 3 4 4 3 3 4 5 5 7 8 8 A vi e n t K W R P P G F U L R P M A V Y F M C H U N C E H X L E C L A S H E M N S C L FR EE CA SH FLOW CONV ER SION Source: Peer data per Bloomberg as of July 21, 2023 Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA. Avient reflects 2023 adjusted EBITDA guidance of $525M and estimated run-rate CAPEX of $110M. 2023E (%) 23 79 90 84 83 76 73 88 82 77 74 72 67 57 20 A vi e n t K W R P P G F U L A V Y R P M F M C C E H X L E C L A S H H U N E M N S C L Avient Specialty Formulators Other Specialty / Chemical Companies MULTI PL E EX PANSION Source: Peer data per Bloomberg as of July 21, 2023 Note: Avient reflects 2023 adjusted EBITDA guidance of $525M and closing share price of $40.93.

MEVOPUR™ LQ Liquid Color & Additive Concentrates for Silicone Elastomers Silicones elastomers are materials of choice in a wide range of medical applications because of the combination of unique physical properties such as strength, durability, and flexibility combined with one of the most tested polymers in terms of biocompatibility and hypo-allergenic properties. The MEVOPUR™ LQ advanced range of liquid color & additive concentrates utilize the specific liquid carrier system designed for high compatibility with silicone elastomers. Customized color solutions are available on request • Production under ISO 13485 / GMP quality system with change control management • Fingerprinting of raw materials and routine batch testing • Extractability evaluated in hexane, isopropanol, and water according to ISO 10993 part 18 REGULATORY SUPPORT • Raw materials are pre-tested to biologically- evaluated raw materials using ISO 10993-1 and USP chapters , Class VI • DMF/MAF documentation filed with the FDA for all standard colors APPLICATIONS MEVOPUR LQ formulations can be applied in demanding applications including: • Medical devices such as catheter tubing & connectors, syringe tips, and needleless connectors • Skin contact devices such as wearables or soft-touch surfaces of medical devices PRODUCT BULLETIN MEVOPUR™-LQ YELLOW (PMS1205C) Product Code FZ1M415005 MEVOPUR™-LQ TRANS YELLOW Product Code FZ1M415006 MEVOPUR™-LQ BLUE (PMS292C) Product Code FZ5M415008 MEVOPUR™-LQ TRANS BLUE Product Code FZ5M415009 MEVOPUR™-LQ RED (PMS198C) Product Code FZ3M415008 MEVOPUR™-LQ TRANS RED Product Code FZ3M415009 MEVOPUR™-LQ GREEN (PMS346C) Product Code FZ6M415008 MEVOPUR™-LQ TRANS GREEN Product Code FZ6M415009 MEVOPUR™-LQ VIOLET (PMS2655C) Product Code FZ4M415003 MEVOPUR™-LQ TRANS VIOLET Product Code FZ4M415004 CUSTOM-MADE Individual options Customized colors are also available to meet your needs, please contact us.

Mevopur™ Healthcare Functional Additives Safety Data Sheets Safety Data Sheets

Homepage // News Center // ‘Future-Proof’ Pharma Packaging: Avient Launches New Regulatory-Compliant MEVOPUR™ Amber Masterbatches As a result, these MEVOPUR masterbatches will ‘future-proof’ pharma packaging and avoid the need for formulation changes in the years to come.”  The new MEVOPUR concentrates block wavelengths from 290 – 450 nm, while still providing good transparency.

We expect to introduce more products throughout 2021 as new data is generated. Boosting rPET Quality and Safety in Packaging Boosting rPET Quality and Safety in Packaging

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. Data Protection.