Global Policy on Anti-Bribery & Anti-Corruption Issued July 1, 2020 Table of Contents Our Global Policy on Anti-Bribery and Anti-Corruption 1 Importance of Compliance 1 Our Responsibility 1 What Is a Bribe? Violations can result in damage to Avient’s reputation, severe penalties and jail time. 1 Refer to the Gifts and Hospitality section of the Avient Code of Conduct and our Gifts and Entertainment Policy to determine if your proposed expenditure is permitted. This prohibition applies whether the offer or payment is made directly or through another person x Make misleading, incomplete, or false entries in Avient’s books and records x Ignore red flags when dealing with third parties HOME | TOC North America Global Headquarters Avon Lake, United States 33587 Walker Road Avon Lake, OH, United States 44012 Toll Free: +1 866 765 9663 Phone: +1 440 930 1000 Fax: +440 930 3064 Asia Pacific Regional Headquarters Shanghai, China 2F, Block C 200 Jinsu Road Pudong, 201206 Shanghai, China Telephone: +86 (0) 21 6028 4888 Fax: +86 (0) 21 6028 4999 South America Regional Headquarters Sao Paulo, Brazil Av.

Az Avient globális vesztegetésellenes és korrupcióellenes irányelve Kiadva: 2020. július 1. Tartalomjegyzék Globális vesztegetésellenes és korrupcióellenes irányelvünk 1 A megfelelés fontossága 1 Felelősségünk 1 Mi tekinthető vesztegetésnek? Tartalomjegyzék Észak-Amerika Globális Központ Avon Lake, Egyesült Államok 33587 Walker Road Avon Lake, OH, Egyesült Államok 44012 Ingyenesen hívható telefonszám: +1 866 765 9663 Telefon: +1 440 930 1000 Fax: +440 930 3064 Ázsia és a Csendes-óceáni térség Regionális Központ Sanghaj, Kína 2F, Block C 200 Jinsu Road Pudong, 201206 Sanghaj, Kína Telefonszám: +86 (0) 21 6028 4888 Fax: +86 (0) 21 6028 4999 Dél-Amerika Regionális központ São Paulo, Brazília Av.

Q2 2023 ( T O TA L C O M PA N Y ) $824 $850 Q2 23 Q2 24 $131 $143 Q2 23 Q2 24 Sales Adjusted EBITDA (in millions) $0.63 $0.76 Q2 23 Q2 24 (in millions) Adjusted EBITDA Adjusted EPS 5 + 3% (+5% excluding FX) + 9% (+12% excluding FX) + 21% (+25% excluding FX) Sales 6 Q2 2 024 RESULTS – ORGA NI C SA LES BY REGION VS PY 6 US & Canada Latin America EMEA Asia +5% +4% +1% +19% Avient ex. FX +4.6% FX -1.5% Total Avient +3.1% Note: Regional Sales Percentages exclude impact of foreign exchange Q2 2024 SEGMENT PERFORMANCE ( C O L O R , A D D I T I V E S & I N K S ) $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 ( S P E C I A LT Y E N G I N E E R E D M AT E R I A L S ) $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) 2 0 2 4 G U I D A N C E FY 20 24 GUIDA NC E 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 20 23 SUSTAI NA BILI TY 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 20 24 AVI ENT INVESTOR DAY A P P E N D I X 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 RA W MATERI AL BA SKET 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 2 0 2 3 R E V E N U E | $ 2 . 0 B I L L I O N 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 , AD DI TI VES & INKS 2 0 2 3 R E V E N U E | $ 1 . 1 B I L L I O N 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 SPEC IA LTY ENGI NEER ED MATERI ALS Packaging 32% Consumer 26% Healthcare 9% Industrial 13% Building & Construction 6% Telecommunications 2% Energy 2% Defense 1% Asia (18% of sales) Transportation 9% 2 0 2 3 AV I E N T R E G I O N A L S A L E S 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 B Y E N D M A R K E T 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. Three Months Ended 2024年6月30日 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 33.6 $ 0.36 $ 22.1 $ 0.24 Special items, after-tax 21.8 0.24 19.6 0.21 Amortization expense, after-tax 14.8 0.16 16.2 0.18 Adjusted net income / EPS $ 70.2 $ 0.76 $ 57.9 $ 0.63 Three Months Ended June 30, Reconciliation to EBITDA and Adjusted EBITDA: 2024 2023 Net income from continuing operations – GAAP $ 33.8 $ 22.3 Income tax expense 11.2 10.4 Interest expense, net 26.6 29.4 Depreciation & amortization 44.9 47.6 EBITDA from continuing operations $ 116.5 $ 109.7 Special items, before tax 28.1 21.7 Interest expense included in special items (1.0) — Depreciation & amortization included in special items (0.3) (0.1) Adjusted EBITDA $ 143.3 $ 131.3 Adjusted EBITDA as a percent of sales 16.9 % 15.9 % 1 Three Months Ended 2024年6月30日 2023 Sales: Color, Additives and Inks $ 542.0 $ 524.5 Specialty Engineered Materials 308.1 300.8 Corporate (0.4) (0.9) Sales $ 849.7 $ 824.4 Operating income: Color, Additives and Inks $ 86.1 $ 68.0 Specialty Engineered Materials 42.8 39.7 Corporate (56.4) (45.4) Operating income $ 72.5 $ 62.3 Depreciation & amortization: Color, Additives and Inks $ 21.8 $ 25.7 Specialty Engineered Materials 20.8 19.9 Corporate 2.3 2.0 Depreciation & amortization $ 44.9 $ 47.6 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 107.9 $ 93.7 Specialty Engineered Materials 63.6 59.6 Corporate (54.1) (43.4) Other expense, net (0.9) (0.2) EBITDA from continuing operations 116.5 109.7 Special items, before tax 28.1 21.7 Interest expense included in special items (1.0) — Depreciation & amortization included in special items (0.3) (0.1) Adjusted EBITDA $ 143.3 $ 131.3 Adjusted EBITDA as a percent of sales: Color, Additives and Inks 19.9 % 17.9 % Specialty Engineered Materials 20.6 % 19.8 % 2 Year Ended 2023年12月31日 Operating income: Color, Additives and Inks $ 259.9 Specialty Engineered Materials 142.5 Corporate (205.6) Operating income $ 196.8 Depreciation & amortization: Color, Additives and Inks $ 98.3 Specialty Engineered Materials 81.5 Corporate 9.0 Depreciation & amortization $ 188.8 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 358.2 Specialty Engineered Materials 224.0 Corporate (196.6) Other income, net 5.8 EBITDA from continuing operations 391.4 Special items, before tax 114.6 Interest expense included in special items (2.3) Depreciation & amortization included in special items (1.9) Adjusted EBITDA $ 501.8 3 Avient Q2 2024 Webcast Slides_for website_with non-GAAP_8_5.pdf IR Deck - AVNT-2024.06.30 - 8.02.24 1130AM.pdf Attachment Avient Q2 2024 Webcast Slides_for website_with non-GAAP.pdf AVNT cover slide.pdf

Pro Forma Financial Information The Company acquired Avient Protective Materials (“Dyneema”) on September 1, 2022 (the “Acquisition Date”) and sold the Distribution segment on November 1, 2022. W H AT W E D O : M AT E R I A L S C I E N C E 5 CUSTOM FORMULATION F E B R U A R Y 1 5 , 2 0 2 3 W E B C A S T Q4 2022 VS. EBITDA Margins (1) 5.4% 11.5% 16.2% 2006 2018 2022PF $142 $408 $592 2006 2018 2022PF 2006 figures exclude joint venture results 2022 pro forma for the acquisition of Avient Protective Materials Adj.

www.polyone.com Specialty Inks Global Headquarters and Manufacturing Plant 8155 Cobb Center Drive Kennesaw, GA 30152 Phone: +1 800.326.0226 Wilflex Warehouse Knowsley, Merseyside, L34 9GT Unity Grove, Knowsley Business Park Phone: +44 151 547 3800 Rutland Manufacturing Plant 10021 Rodney Street Pineville, NC 28134 Phone: +1 704.553.0044 Toll Free: +1 800.438.5134 Union Ink Manufacturing Plant 10021 Rodney Street Pineville, NC 28134 Phone: +1 704.553.0046 Toll Free: +1 800.438.5134 QCM Manufacturing Plant 10021 Rodney Street Pineville, NC 28134 Phone: +1 704.553.0046 Toll Free: +1 800.438.5134 Printop Manufacturing Plant Sociedad Química Alemana S.A. Revolución 842, Zona Industrial Ventanilla - Callao, Lima - Perú Phone: +51.1.613.4242 Rutland/Union Ohio Service Center 777-M-N Dearborn Park Lane Worthington, OH 43085 Phone: +1 614.846.3055 Rutland/Union Warehouse 28 Eldon Way Paddock Wood Kent TN12 6BE UK Phone: +44.0.1892.834.555 Rutland/Union/Wilflex Manufacturing Plant No. 1 QiHang Industrial Park HaoXiang Road, Shajing Town, BaoAn District Shenzhen, China, 518104 Phone: +86.755.2969.2888 Specialty Inks

POLYONE CORPORATION 1 ITEM 1. Tianjin, China 1. Committees: 1, 2 COMMITTEES 1.

Petrem Elšíkem, notářem se sídlem v Litoměřicích, na místě samém v sídle PRK Partners s.r.o. advokátní kancelář, na adrese Jáchymova 26/2, Staré Město, 110 00 Praha 1, dle § 80a a násl. notářského řádu o ---------------------------------------------------------------------------------------------------------------------- r o z h o d n u t í valné hromady společnosti PolyOne ČR, s.r.o., identifikační číslo 26689537, sídlem Pobřežní 620/3, Karlín, 186 00 Praha 8, spisová značka C 87503 vedená u Městského soudu v Praze (dále též „Společnost“), o změně obsahu společenské smlouvy (dále též „Rozhodnutí“), konané dne 21.10.2021 v budově na adrese Jáchymova 26/2, Staré Město, 110 00 Praha 1. ------------------ I. 1. Kateřina Hájková, LL.M., datum narození 03.06.1982, adresa místa pobytu Křižíkova 220/91, Karlín, 186 00 Praha 8, advokáta, evidenční číslo ČAK 13682, spolupracujícího s PRK Partners s.r.o., advokátní kancelář, IČO 266 92 392, se sídlem Jáchymova 26/2, Staré Město, 110 00 Praha 1 (dále též „Předsedající“). Valná hromada Společnosti svým usnesením přijala toto --------------------------------------- r o z h o d n u t í o změně obsahu společenské smlouvy: a)Společenská smlouva Společnosti se mění tak, že v článku prvním „Obchodní firma, založení, vznik a právní forma společnosti“ odst. 1. a 2. nově zní takto: ---------------------- 1.

All Rights Reserved 2025 7 Strategic approach to drive sustainable growth Avient sales growth Catalyze the core GROW BUSINESS AT GDP + 1. All Rights Reserved 2025 8 Strategic approach to drive sustainable growth Avient sales growth Build new platforms of scale GROW BUSINESS AT 10% PLUS CAGR 1. All Rights Reserved 2025 Color, Additives & Inks E N D M A R K E T S R E G I O N S 34% 21% 15% 11% 9% 8% Packaging Telecom 1%Energy 1% Transportation Industrial Consumer 34% 37% 20% 9% US & Canada Latin America Asia Europe, Middle East and Africa Healthcare Building & Construction 25Copyright © .

Kutno, Poland 1. Rancho Cucamonga, California 1. Phoenix, Arizona (1) 24.

NAME BASE RESIN(S) TARGET MARKETS AVAILABLE FEATURES1 Artisan™ Pre-Colored Thermoplastics PA Powersports, Lawn & Garden, Marine Customizable pre-color solutions Scratch & mar resistance Weatherability & UV resistance High impact resistance Chemical resistance Simplifies processing/replaces paint Tailored temperature performance range: -20°C to 105°C Global availability Complēt™ OnForce™ PA, PP, PPA, PPS, TPU Consumer, Transportation, Industrial Long fiber technology Elevated impact and mechanical properties at room temperature Increased performance at temperature extremes Excellent creep and fatigue resistance Glass and carbon fiber filled options Lubricated, fire retardant, and pre-colored options Edgetek™ Bergadur™ ABS, LCP, PA, PC, PC/ABS, PC/PBT, PC/PET, PC/PSU, PEEK, PES, PEI, POM, PPA, PPS, PSU Consumer, Transportation, Industrial Strength and durability Chemical resistance High impact resistance Weatherability Flame retardant grades: UL 94 V-0, V-1, V-2, and 5VA Pre-color solutions Lightweighting 5G properties - Dk/Df and 3D/LDS Gravi-Tech™ PA, TPU, TPE, PBT Consumer, Transportation, Industrial Customized density, from 1.5 to 11 gm/cm3 Broad modulus and strength: flexible to rigid Chemical and corrosion resistance Gravi-Tech™ LD light density grades available LubriOne™ PA, PBT, PC, PEEK, PEI, POM, PP, PPA, PPS, PS Transportation, Electrical & Electronics, Industrial Low coefficient of friction Self-lubricating Chemical, wear, and corrosion resistance Maxxam™ PP Consumer, Transportation, Electrical & Electronics, Industrial Homopolymer and copolymer grades Optional additives: UV, heat stabilizers Standard grades available in natural and black Maxxam™ FR PE, PP Consumer, Transportation, Electrical & Electronics, Industrial Flame retardant grades: UL 94 V-0, V-1, V-2, and 5VA Flame retardant masterbatches Elevated UL RTI ratings Halogen-free flame retardant grades available Nymax™ Nymax™ PIR Bergamid™ PA 6, 66, 612, 12, co-polymers Transportation, Building & Construction, Electrical & Electronics Toughened grades: medium and high impact Optional additives: heat stabilized, lubricated, impact modified, nucleated Standard grades available in natural and black Pre-colored solutions available PIR grades with 20%–100% recycled content, supporting the circular economy SPECIALTY ENGINEERED THERMOPLASTICS 1 See technical data sheets for complete product details 1 See technical data sheets for complete product details 2 From NEU™ Specialty Engineered Materials, LLC., a wholly-owned subsidiary of Avient Corporation NAME BASE RESIN(S) AVAILABLE FEATURES1 Trilliant™ ABS, LCP, PA, PC, ABS, PA 6, PA 66, PC/ABS, PC/PSU, PEBA, PEEK, PES, POM, PPA, PSU Certified to USP Class VI Formulations locked down Drug master file submissions by product stewardship Pre-colored, small lot production down to 50 lb–250 lb Sterilization, chemical resistance, and secondary process guidance Adherence to FDM-GMP manufacturing standards Antimicrobial technologies Materials for radiation shielding protection NEU™ Specialty Materials2 PEBA, TPU, PA 11, PA 12, PP, PE, TPE Radiopacifiers, stabilizers, and surface modifiers Antimicrobial technologies Pre-colored formulations Small lot capabilities Short lead times Versaflex™ HC TPE Overmolding Clear and heat resistant Ultra clear grades Ultra soft TPE gels, 30 shore OO FDA, USP Class VI, ISO 10993 approved grades Sterilizable under autoclave, radiation, and EtO gas Extrusion, injection, and blow moldable HEALTHCARE SPECIALTY THERMOPLASTICS NAME BASE RESIN(S) TARGET MARKETS AVAILABLE FEATURES1 reSound™ R Recycled Formulations PA6, PA66, PC Transportation, Consumer, Household Appliance, Electrical & Electronics, Industrial PA grades: Up to 100% recycled content PC grades: Up to 70% recycled content PIR and PCR grades available Support the circular economy Comparable performance to prime grades Customizable solution Surround™ ABS, PP, PBT, PC, PA 66 Transportation, Electrical & Electronics Integrated EMI/RFI shielding Long fiber technology Conductive properties Galvanic corrosion protection Lightweighting and ease of processing Stat-Tech™ ABS, PA, PC, PC/ABS, PC/PSU, PEEK, PEI, PES, PP, PPA Transportation, Electrical & Electronics Integrated EMI/RFI shielding Conductive properties Anti-static/dissipative properties Corrosion resistance Lightweighting and ease of processing Clean room materials for semiconductors available Therma-Tech™ LCP, PA, PEEK, PP, PPA, PPS Consumer, Transportation Thermally conductive Low coefficient of thermal expansion Corrosion resistance SPECIALTY ENGINEERED THERMOPLASTICS NAME BASE RESIN(S) TARGET MARKETS AVAILABLE FEATURES1 Barricade™ Elastomers with Fortrex™ Technology Barricade™ high-performance elastomers bring next genera- tion technology to market to bridge the gap between tradi- tional TPEs and silicone Healthcare, Industrial Aerospace, Appliances, Electronics High temperature compression set Processes on thermoplastic injection molding and extrusion equipment Customizable and colorable Process simplicity CROSSLINKABLE ELASTOMERS Barricade formulations leverage licensed Fortrex™ technology. Consumer, Packaging, Healthcare, Electrical & Electronics, Appliance Overmolding Clear and heat resistant TPEs Ultra clear grades Ultra soft TPE gels, 30 shore OO FDA, USP Class VI, ISO 10993 approved grades NSF and UL listings Sterilizable under autoclave, radiation, and EtO gas Extrusion, injection, and blow moldable GLS™ THERMOPLASTIC ELASTOMERS * Commercially available in North America only 1 See technical data sheets for complete product details NAME BASE RESIN(S) AVAILABLE FEATURES1 ECCOH™ Polyolefin Flame retardant, low smoke and fume, zero halogen (LSFOH) Cross-linkable grades Chemical, oil, and gel resistant Flexible, low friction, easy-peel, and high speed processing Compatible with Avient additives and color masterbatches FireCon™ CPE, CPE Alloy Low and medium voltage cable jacketing Flame retardant and 90°C deformation resistance Oil resistance RoHS grades available Maxxam™ FR PE, PP UL Yellow Card for plenum applications Halogen-free flame retardant grades available Maxxam™ SY Foamable PP co-polymer Easy processing Variety of final densities available Corrosion resistance Syncure™ XLPE High performance moisture cure technology UL bulletinized XHHW2 and VW1 Temperature, abrasion, and oil resistant WIRE AND CABLE SPECIALTY THERMOPLASTICS To learn more, please visit avient.com or call +1.844.4AVIENT (+1.844.428.4368).