Substance Safety Summary SUBSTANCE: Carbon Black GENERAL STATEMENT Carbon black (subtypes are acetylene black, channel black, furnace black, lamp black and thermal black) is a material produced by the incomplete combustion of heavy petroleum products such as FCC tar, coal tar, ethylene cracking tar, and a small amount from vegetable oil. DOCUMENT NUMBER_ SSS-001 CATEGORY DETAIL EC Number 215-609-9 CAS Number 1333-86-4 Name Subclass 1 Carbon Black Structural Formula CHEMICAL IDENTITY H | C||||HH H DOCUMENT NUMBER_ SSS-001 HEALTH EFFECTS HUMAN HEALTH SAFETY ASSESSMENT Consumer Overall, as a result of the detailed epidemiological investigations, no causative link between Carbon Black exposure and cancer risk in humans has been demonstrated. Toxicity for Reproduction PROPERTY DETAIL Physical State Solid Form Powder/ Beads Color Black Odor Odorless Melting Point 3550°C Boiling Point 500–600°C Partition Coefficient: N-octanol/Water Not Applicable Bulk Density 1.7-1.8 g/cm3 (20°C) Water Solubility Insoluble Self-ignition Temperature >284°F Flammability >45 s Explosiveness 50 g/m3 PHYSICAL/CHEMICAL PROPERTIES DOCUMENT NUMBER_ SSS-001 EXPOSURE HUMAN HEALTH SAFETY ASSESSMENT Human Health Carbon Black, when generally used as noted above is bound into a matrix.

AVIENT RESPONSIBLE CARE POLICY Avient Corporation conducts its operations in a manner that is protective of the environment, and the health, safety and security of associates, customers, and all our stakeholders, including the communities in which we operate. We further define these commitments with individual Policies on Environment, Safety & Health, Security and Product Stewardship.

Industry Standards ADDITIVE PRODUCT CODE PROCESS BENEFITS Anti Block CC10128310BG PLA Film Improve Separation Slip Agent CC10144939BG PLA Fibers Aids Process/ Stickiness Reduction Slip Agent CC10299977BG BOPLA Film Stickiness Reduction (End Products) Anti Block/Slip Agent CC10272954BG PLA Film Improve Separation/ Opening of the Bags Anti Block/Slip Agent BLA0050104 Injection Improve Overall Process for Ejection Anti Block/Slip Agent CC10178477BG BOPLA Film Stickiness Reduction/ High Transparency Metal Release CC10312144BG Extrusion Coating Good Chill Roll Release Melt Enhancer BLA0025041 PLA Sheet Melt Stabilizer for Thermoform Sheet COLOR PRODUCT CODE MB CARRIER COMMENTS Black CC10253380BG Blend 30% Carbon Black Black CC10085911BG PLA 30% Carbon Black Black CC10324006BG PBAT 40% Carbon Black White BL00050101 PLA 60% TiO2 White CC10245763BG Blend 60% TiO2 + Blue Undertone White CC10194583BG PBAT 70% TiO2 ONCAP™ BIO & CESA™ ADDITIVES – FOR FLEXIBLE FILM APPLICATIONS ONCOLOR™ BIO & RENOL™ COLORANTS – FOR INDUSTRIAL, AGRICULTURAL & HORTICULTURAL APPLICATIONS See the World in Color The coloration of biodegradable polymers—such as PLA, PHA, PBAT or blends—requires a careful selection of pigments that must comply with strict environmental standards.

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 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 Q2 23 Q2 24 $60 $64 Q2 23 Q2 24 20.6% Sales Adjusted EBITDA (in millions) (in millions) Sales Adjusted EBITDA 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 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 15 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% 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 US & Canada 34% EMEA 37% Asia 21% Latin America 8% END MARKET REGION 18 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% 19 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% 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.

Francisco Nakasato, 1700 Bairro São Roque das Chaves Itupeva, SP 13295-000 Brasil ISO 9001:2015 O Sistema de Gestão da Qualidade é aplicável a: Certificado No: 49862 Data de Expiração Anterior: 09 Abril 2020 Data de Aprovação Original: 16 Abril 2014 Data de Certificação: 13 Abril 2020 Data Efetiva: 06 Abril 2023 Data de Expiração: 09 Abril 2026 Data de Emissão: 06 Abril 2023 Dominic Townsend, Presidente DEVELOPMENT, PRODUCTION, SALES AND TECHNICAL ASSISTANCE OF LIQUID COLORANTS, COLORS CONCENTRATES AND ADDITIVES FOR THE PLASTICS, FIBERS AND RUBBER MARKET IN GENERAL DESENVOLVIMENTO, PRODUÇÃO, VENDAS E ASSISTÊNCIA TÉCNICA DE COLORANTES LÍQUIDOS, CONCENTRADOS DE CORES E ADITIVOS PARA O MERCADO DE PLÁSTICOS, FIBRAS E BORRACHAS EM GERAL.

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