Avient Corporation - Jurong, Singapore No. 8 Third Chin Bee Road Jurong Industrial Estate Jurong 618684 Singapore 65536-116868Certificate No: Page 17 of 53 ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A.

Business Number: 898451794 Mailing Address: Delivery Mode: GeneralDelivery Address Line 1: 17 Tideman Drive City, Province/Territory, Postal Code: Orangeville Ontario L9W3K3 Country: Canada Facility Name: Orangeville Plasticizer NAICS Code: 326198 NPRI ID: 2277 Physical Address: Address Line 1: 15 Tideman Drive City, Province/Territory, Postal Code: Orangeville Ontario L9W3K3 Country: Canada Latitude: 43.9133 Longitude: ­80.1158 Contact Type Technical Contact, Company Coordinator, Public Contact, Person who coordinated the preparation of the Toxics Reduction Plan Name: Brian Greer Position: EHS Manager Telephone: 5192150535 Email: brian.greer@polyone.com Contact Type Certifying Official Name: Darryl Chartrand Position: Senior Air Quality Technologist Telephone: 4164999000 about:/V003/Html http://www.canada.gc.ca/home.html http://www.servicecanada.gc.ca/eng/home.shtml http://www.canada.gc.ca/aboutgov-ausujetgouv/depts/menu-eng.html https://ec.ss.ec.gc.ca/auth/en/Services about:/V003/Logout_Deconnexion http://ec.gc.ca/default.asp?

Article 17.

Buyer expressly warrants that employees, agents and subcontractors of Buyer shall not directly or indirectly (i) accept, promise, offer or provide any improper advantage to, or (ii) enter into an agreement (a) with any entity or person, including officials of a government or a government-controlled entity, or (b) relating to a product, which would constitute an offense or infringement of applicable Laws and Standards. 17.

FX +8.5% FX -0.4% Total Avient +8.1% Note: Regional Sales Percentages exclude impact of foreign exchange COLOR, ADDITIVES & INKS SEGMENT $487 $522 $89 $97 (in millions) (in millions) 10 + 7% (+8% excluding FX) + 9% (+11% excluding FX) 18.3% +40 bps *18.7% * * Adjusted EBITDA Margin % • Sales growth driven by winning new product specifications in consumer & packaging, strong underlying demand in healthcare and improving demand in building & construction • Favorable mix and raw material deflation contributed to EBITDA margin expansion SPECIALTY ENGINEERED MATERIALS SEGMENT $268 $295 $51 $57 (in millions) (in millions) 11 • Sales growth driven by restocking in healthcare & consumer end markets and strong underlying demand for composite applications used in building & construction, energy and defense end markets • Favorable mix contributed to EBITDA margin expansion + 10% (+10% excluding FX) + 12% (+13% excluding FX) 19.0% +40 bps *19.4% * * Adjusted EBITDA Margin % 2024 G U IDA N CE FY 2024 GUIDANCE Previous (Aug 6) Current Adjusted EPS $2.55 to $2.70 $2.63 to $2.67 Adjusted EBITDA $515 to $540 million $525 to $530 million Interest Expense $105 million $104 million Adjusted Effective Tax Rate 23% to 25% 23% to 25% Capital Expenditures & Investment in S/4 Hana ~$140 million ~$140 million 13 14 • Investor Day to be held December 4, 2024 at the NYSE, beginning at 10AM • The focus will be to do a deep dive on the Company’s strategy • Registration available at www.avient.com/investors 2024 AVIENT INVESTOR DAY AP P EN D IX 17 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% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 19% 23%Industrial Building and END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) 19 (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 20 34% 21% 15% Building & 1% Energy COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 B ILL ION 52% 35% 21 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) 22 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.

ویوافق المشتري عل ذات صلة بشأن قوانین الرقابة على التجارة أخرى (تشمل الغرامات أو الرسوم القانونیة) وإبراء ذمة البائع من أي مسؤولیة تعویض لمشتري یمارسھا ا التي تحملھا البائع بشأن أي أنشطة تصدیر أو إعادة تصدیر إخلالاً بالتزاماتھ بموجب قوانین الرقابة على التجارة المعمول بھا، ویضمن لا یجوز لھم أن موظفي المشتري ووكلائھ ومقاولیھ من الباطن المشتري صراحةً ) قبول أو عمل وعد أو عرض أو تقدیم أي 1بصورة مباشرة أو غیر مباشرة ( ) أو إبرام اتفاقیة (أ) مع أي جھة أو شخص، بما في ذلك 2میزة غیر ملائمة إلى ( ق بمنتج، تسیطر علیھا الحكومة، (ب) أو تتعلإحدى الحكومات أو جھة مسؤولي یشكل مخالفة أو انتھاكًا للقوانین والمعاییر المعمول بھا. 17. لا یجوز للمشتري عدم الإعلان. 17 أي إعلانات أو مواصفات المنتج أو مواد التغلیف أو المواقع الإلكترونیة أو أي باستثناء بموجب الموافقة الخطیة المسبقة للبائع.أخرى مواد دعائیة 18.

Kupujúci sa výslovne zaručuje, že jeho zamestnanci, zástupcovia a subdodávatelia priamo ani nepriamo (i) neprijmú, nesľúbia, neponúknu ani neposkytnú žiadnu nevhodnú výhodu, alebo (ii) neuzatvoria zmluvu (a) so žiadnym subjektom alebo osobou vrátane štátnych činiteľov alebo štátom ovládaných subjektov, alebo (b) na výrobok, ktorý by mohol predstavovať porušenie platných zákonov a noriem. 17. Buyer expressly warrants that employees, agents and subcontractors of Buyer shall not directly or indirectly (i) accept, promise, offer or provide any improper advantage to, or (ii) enter into an agreement (a) with any entity or person, including officials of a government or a government-controlled entity, or (b) relating to a product, which would constitute an offense or infringement of applicable Laws and Standards. 17.

Buyer expressly warrants that employees, agents and subcontractors of Buyer shall not directly or indirectly (i) accept, promise, offer or provide any improper advantage to, or (ii) enter into an agreement (a) with any entity or person, including officials of a government or a government-controlled entity, or (b) relating to a product, which would constitute an offense or infringement of applicable Laws and Standards. 17. El Comprador garantiza expresamente que los empleados, agentes y subcontratistas del Comprador no (i) aceptarán, prometerán, ofrecerán o proporcionarán ninguna ventaja indebida a, o (ii) suscribirán un contrato (a) con entidad o persona alguna, incluidos funcionarios de gobierno o de una entidad controlada por un gobierno, o (b) relacionado con un producto, directa o indirectamente, que pudiera constituir un delito o una infracción de las Leyes y Normas aplicables. 17.

Zawarte w niniejszym ustępie zobowiązanie do „zwolnienia z odpowiedzialności” oznacza zobowiązanie Kupującego do pokrycia wszelkich szkód, kosztów i wydatków poniesionych przez Sprzedającego oraz zapłaty odpowiednich kwot na rzecz Sprzedającego, jak również do zwolnienia Sprzedającego z wszelkiej odpowiedzialności wobec osób trzecich (art. 392 Kodeksu cywilnego). 17. None of the provisions of these Terms grants Buyer any express or implied rights or licenses with respect to such trademarks, logos, trade names and any other intellectual property rights owned by Seller’s or other companies from Avient Corporation and its affiliates other than those necessary to perform Buyer’s obligations under these Terms. 17.

Gaggenau, Germany 17. Konstantynow, Poland 17. HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 16 PEOPLE 2 layers of text boxes—top layer set to “paper” and “screen” under effects. the screen FX will allow the Sustainability Report | 2023 17Sustainability Report | 2023 17Sustainability Report | 2023 17 Environmental, Health & Safety The top priority at Avient is safety.