Registration information to access the Sustainability Day event will be provided in a news release in advance of the event.

Registration information to access the Sustainability Day event will be provided in a news release in advance of the event.

We will be sending out registration information shortly and will offer both in-person and virtual options in light of the continuing impacts of the pandemic.”

FX +4.6% FX -1.5% Total Avient +3.1% Note: Regional Sales Percentages exclude impact of foreign exchange Q2 2024 SEGMENT PERFORMANCE (COLOR, ADDITIVES & INKS) $525 $542 $94 $108 19.9% (in millions) (in millions) 7 17.9% +200 bps * Adjusted EBITDA Margin % • Organic sales growth in all regions led by Americas • Raw material deflation combined with cost reduction actions drove EBITDA margin expansion + 3% (+5% excluding FX) + 15% (+17% excluding FX) Q2 2024 SEGMENT PERFORMANCE (SPECIALTY ENGINEERED MATERIALS) $301 $308 $60 $64 20.6% (in millions) (in millions) 8 19.8% +80 bps * Adjusted EBITDA Margin % • Sales growth in consumer, healthcare and building & construction end markets offset by weaker demand in telecommunications • EBITDA margin expansion driven by positive end market mix as well as raw material deflation + 2% (+4% excluding FX) + 7% (+8% excluding FX) 2024 G U IDA N CE FY 2024 GUIDANCE Previous (May 7) Current Adjusted EBITDA $510 to $535 million $515 to $540 million Adjusted EPS $2.50 to $2.65 $2.55 to $2.70 Interest Expense $105 million $105 million Adjusted Effective Tax Rate 23% to 25% 23% to 25% Capital Expenditures ~$140 million ~$140 million 10 Q3 2024: Adjusted EPS of $0.62 11 Highlights • Provides performance updates on 2030 Sustainability Goals • Reduced company’s Scope 1 & 2 GHG emissions by 48% since 2019 • Highlights ESG performance ratings, certifications, and awards, including recent upgrades by Ecovadis to Gold and CDP to A- • Reflects Great Place to Work® culture focused on health, safety and employee engagement 2023 SUSTAINABILITY REPORT 11 Sustainability for a Better Tomorrow 2023 SUSTAINABILITY REPORT 12 • Investor Day to be held 2024年12月4日 in New York, NY • The focus will be to do a deep dive on the Company’s strategy • Further details to be communicated 2024 AVIENT INVESTOR DAY AP P EN D IX 15 Performance Additives 15% Pigments TiO2 Dyestuffs Polyethylene 10%Nylon Polypropylene Styrenic Block Copolymer Other Raw Materials 38% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials RAW MATERIAL BASKET SEGMENT DATA U.S. & Canada 41% 36% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 19% 23%Industrial Building and 7% END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) 7% 17 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2023 REVENUE | $2 .0 B ILL ION 34% 37% 21% END MARKET REGION 18 34% 21% 15% Building & 1% Energy COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 B ILL ION 52% 35% 19 6%Industrial 12% 10% Defense Building & END MARKET REGION SPECIALTY ENGINEERED MATERIALS 32% 26% Building & 6% 2% Defense 1% (18% of sales) 2023 AVIENT REGIONAL SALES 25% Building & (36% of sales)Transportation 22% Building & 12% 6% US & Canada (41% of sales) 59% 22% Building & LATAM (5% of sales) 20 BY END MARKET Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) 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.

We are proud to share that our associates feel we are a Great Place to Work® and, in 2023, we received our fifth certification. Audit services include the annual audit of the consolidated financial statements, the audit of internal controls over financial reporting, the reviews of our quarterly reports on Form 10-Q, the issuance of comfort letters and consents, the review of registration statements filed with the SEC, accounting and financial reporting consultations and international statutory audits. Balance at 12/31/2022(1) Contributions in Last FY(2) Registrant Contributions in Last FY(3) Earnings in Last FY(4) Withdrawals/ Distributions Balance at Last FYE(1)(5) A.K.

Vilken information vi samlar in Begreppet "personlig information" avser all information som, ensam eller i kombination med annan information, direkt eller indirekt identifierar er eller kan förknippas med er, och som ni har givit oss som en del av er registrering och ansökan via denna rekryteringsplattform (dvs. er ansökan och sökandeprofil).

subject= 4 • Un cliente, un fornitore o una terza parte • Pone obiezioni agli impegni contrattuali riguardanti la conformità alle leggi ABAC • Richiede un contratto che limita la concorrenza • Divide un acquisto in un gruppo di acquisti di minore entità, per evitare le approvazioni richieste dal governo o dalla dirigenza Avient • È di proprietà o gestito da un funzionario pubblico o da qualcuno strettamente correlato a un funzionario • Richiede modifiche al prezzo non registrate o pagamenti in contanti • Non è disposto a fornire i dettagli necessari affinché Avient esegua la due diligence • Un fornitore o altra terza parte • Richiede il pagamento a un conto bancario personale o offshore • Non ha esperienza con il prodotto, campo, settore o non dispone di personale qualificato • Pone obiezioni a una dichiarazione di lavoro dettagliata Requisiti di contabilità e tenuta dei registri Ai sensi della maggior parte delle Leggi ABAC, Avient e le sue società affiliate devono mantenere libri e registri accurati e dettagliati e un sistema adeguato di controlli interni.

Este certificado refleja la situación jurídica registral de la sociedad, a la fecha y hora de su expedición.

Registration details will be released shortly.

Seller warrants good and clear title in goods subject to the sale (“Product”) and that the Product con- forms at the time of shipment to a Certificate of Analysis, a Cer- tificate of Compliance, or a Product Specification Sheet, if any such document exists, and other specifications signed by Seller (“Specifications”). Säljaren garanterar att de produkter som är föremål för försäljningen (”Produkten”) är fria från rättsliga fel och att Produkten vid leveranstidpunkten stämmer överens med ett så kallat ”Certificate of Analysis”, ett ”Certificate of Compliance” eller ett ”Product Specification Sheet”, om något sådant existerar, och med andra specifikationer undertecknade av Säljaren (”Specifikationer”).