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 Securities and Exchange Commission (“SEC”), accounting and financial reporting consultations and international statutory audits. With respect to the Clariant Color Integration Objectives described above, the Committee determined all objectives had been met or exceeded as we prioritized safety training and education and retained ACC Responsible Care certification, grew revenue and cross-selling leads, successfully engaged employees, achieving our third consecutive certification as a Great Place to Work® by the Great Place to Work Institute, and achieved $54 million of cost synergies. Name Aggregate Balance at 12/31/2020(1) ($) Executive Contributions in Last FY(2) ($) Registrant Contributions in Last FY(3) ($) Aggregate Earnings in Last FY(4) ($) Aggregate Withdrawals/ Distributions ($) Aggregate Balance at Last FYE(1)(5) ($) R.M.

********************************************************************** Este certificado refleja la situación jurídica registral de la sociedad, a la fecha y hora de su expedición. ********************************************************************** Este certificado fue generado electrónicamente con firma digital y cuenta con plena validez jurídica conforme a la Ley 527 de 1999. ********************************************************************** Página 10 de 11 Cámara de Comercio de Bogotá Sede Virtual CERTIFICADO DE EXISTENCIA Y REPRESENTACIÓN LEGAL Fecha Expedición: 12 de abril de 2021 Hora: 13:04:47 Recibo No.

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.

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”).

Registration with the SEC We intend to file a Registration Statement on Form S-8 relating to the issuance of Common Shares under the 2017 Plan with the Securities and Exchange Commission pursuant to the Securities Act of 1933, as amended, as soon as practicable afteff r approval of the 2017 Plan by our shareholders. Name Executive Contributions FY 2006 – 2015 ($) Registrant Contributions FY 2006 – 2015 ($) R.M. m) “Evidence of Award” means an agreement, certificate, resolution or other type or form of writing or other evidence approved by the Compensation Committee that sets forth the terms and B-2 conditions of one or more awards granted under this Plan.

We are proud that our employees feel we are a Great Place to Work®, and in 2024, we received our sixth certification. The employee engagement metric considered the results of our 2024 Great Places to Work® employee engagement survey (and whether the results resulted in certification by Great Places to Work and an improvement over the prior year’s scores). Name Aggregate Balance at 12/31/2023(1) ($) Executive Contributions in Last FY(2) ($) Registrant Contributions in Last FY(3) ($) Aggregate Earnings in Last FY(4) ($) Aggregate Withdrawals/ Distributions ($) Aggregate Balance at Last FYE(1)(5) ($) A.K.

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 Q2 23 Q2 24 $94 $108 Q2 23 Q2 24 19.9% Sales Adjusted EBITDA (in millions) (in millions) Sales Adjusted EBITDA 10 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 Q2 23 Q2 24 $60 $64 Q2 23 Q2 24 20.6% Sales Adjusted EBITDA (in millions) (in millions) Sales Adjusted EBITDA 11 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 13 Q3 2024: Adjusted EPS of $0.62 14 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 14 Sustainability for a Better Tomorrow 2023 SUSTAINABILITY REPORT 15 • Investor Day to be held December 4, 2024 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 18 Performance Additives 15% Pigments 13% TiO2 9% Dyestuffs 2% Polyethylene 10%Nylon 5% Polypropylene 4% Styrenic Block Copolymer 4% 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% EMEA 36% Asia 18% Latin America 5% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 19% Packaging 23%Industrial 16% Building and Construction 9% Telecommunications 4% Energy 5% Defense 7% END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) Transportation 10% Healthcare 7% 20 (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 US & Canada 34% EMEA 37% Asia 21% Latin America 8% END MARKET REGION 21 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 9% Building & Construction 10% Telecommunications 1% Energy 2% COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 B ILL ION US & Canada 52% EMEA 35% Asia 13% 22 Packaging 5% Consumer 16% Healthcare 6%Industrial 16% Transportation 12% Telecommunications 9% Energy 10% Defense 18% Building & Construction 8% END MARKET REGION SPECIALTY ENGINEERED MATERIALS Packaging 32% Consumer 26% Healthcare 9% Industrial 13% Building & Construction 6% Telecommunications 2% Energy 2% Defense 1% Asia (18% of sales) Transportation 9% 2023 AVIENT REGIONAL SALES Packaging 25% Consumer 13% Healthcare 5% Industrial 18% Building & Construction 9% Energy 5% Defense 8% EMEA (36% of sales)Transportation 13% Packaging 13% Consumer 22% Healthcare 10% Industrial 16% Building & Construction 12% Energy 6% Defense 8% US & Canada (41% of sales) Transportation 9% Packaging 59% Consumer 22% Healthcare 2% Industrial 8% Building & Construction 4% LATAM (5% of sales) Transportation 5% Telecommunications 4% Telecommunications 4% 23 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.

Registre y documente en sus archivos la fuente de su información sobre la competencia (si aún no está clara por el contexto).