e-Certificate of registration Swedish Companies Registration Office LIMITED COMPANY D1a- 6064988 Registration number Date of registration of the company Document created on Date of registration of current name Page 556393-1020 1990-04-10 2020-11-30 14:53 2020-11-30 1 (2) Registration number: 556393-1020 Business name: Avient Colorants Sweden AB Address: Box 9053 200 39 MALMÖ Registered office: Malmö Note: The company is registered as a private limited company. ARTICLES OF ASSOCIATION Date of the latest change: 2020-11-02 FINANCIAL YEAR Registered financial year: 0101 - 1231 Latest annual report submitted covers financial period 20190101-20191231 DATE OF REGISTRATION OF CURRENT AND PREVIOUS BUSINESS NAMES 2020-11-30 Avient Colorants Sweden AB 2016-01-19 Clariant Plastics & Coatings (Nordic) AB 2000-08-23 Clariant Masterbatches Norden Aktiebolag 1990-05-22 Drycolor Aktiebolag 1990-04-10 Nya Drycolor Aktiebolag **** The above information is an extract from the Trade and Industry Register Bolagsverket, the Swedish Companies Registration Office **** Bolagsverket 851 81 Sundsvall 0771-670 670 bolagsverket@bolagsverket.se www.bolagsverket.se 2020-11-30T14:53:51+0100 Sweden Bolagsverket Bolagsverket intygar äktheten och integriteten för detta dokument

A sample of A-list companies from your Activity Group: AmorePacific Corporation Beiersdorf AG Borregaard ASA CDP SCORE REPORT - CLIMATE CHANGE 2023 Avient received an A- which is in the Leadership band. Leadership (A/A-): Implementing current best practices Management (B/B-): Taking coordinated action on climate issues Awareness (C/C-): Knowledge of impacts on, and of, climate issues Disclosure (D/D-): Transparent about climate issues UNDERSTANDING YOUR SCORE REPORT ACTIVITY GROUP PERFORMANCE Chemicals A- Your CDP score Average performance B C C Chemicals North America Global Average *Please note that the peer group average scores are compiled with only investor- requested company scores Avient Region North America Country/Area United States of America Questionnaire Chemicals Activity Group Chemicals The CDP Score Report allows companies to understand their score and indicate which categories require attention to reach higher scoring levels.

Number: BC1228188 CERTIFICATE OF CHANGE OF NAME BUSINESS CORPORATIONS ACT I Hereby Certify that POLYONE CANADA ULC changed its name to AVIENT CANADA ULC on January 15, 2021 at 12:13 PM Pacific Time.

ABS Quality Evaluations This is to certify that the Environmental Management System of: Avient Corporation Avient Corporation HQ 33587 Walker Road Avon Lake, OH 44012 U.S.A. All rights reserved. 65537Certificate No: Facility: Avient Corporation - Lomagna, Italy Via Piave 12 23871, Lomagna, Lecco Italy Facility: Avient Corporation - Lomas de Zamora, Argentina AV . Facility: Avient Corporation - McHenry, IL 921 Ridgeview Drive McHenry, IL 60050 U.S.A.

ABS Quality Evaluations This is to confirm that the Environmental, Health, Safety and Security Management System of: Avient Corporation Avient Corporation HQ 33587 Walker Road Avon Lake, OH 44012 U.S.A. All rights reserved. 65536Certificate No: Facility: Avient Corporation - Lomagna, Italy Via Piave 12 23871, Lomagna, Lecco Italy Facility: Avient Corporation - Lomas de Zamora, Argentina AV . Facility: Avient Corporation - McHenry, IL 921 Ridgeview Drive McHenry, IL 60050 U.S.A.

เคารพเสรีภาพของลูกค้าของคุณ โดยไม่กำ�หนดข้อจำ�กัด ดา้นราคา อาณาเขต ลูกคา้หรอืเรือ่งทั่วไปตอ่ความสามารถของ ลูกคา้ของคณุในการขายตอ่ผลิตภัณฑ์ของ Avient โดยไม่ไดร้บั อนุญาตจากฝ่ายกฎหมายของ Avient ล่วงหน้า 10. ดำ�เนินการปรกึษากับฝ่ายกฎหมายของ Avient ก่อนเลิกจ้าง ตวัแทน ผู้จำ�หน่ายหรอืผู้จัดจำ�หน่าย 12. เวน้แตค่ณุไดร้บัอนุญาตล่วงหน้าจากฝ่ายกฎหมายของ Avient ที่จะทำ�การตกลงเช่นน้ัน ห้ามม ิให้พยายามที่จะรบัข้อตกลงจาก ลูกคา้ที่จะซือ้ข้อกำ�หนดทัง้หมดของผลิตภัณฑ์ที่เฉพาะเจาะจง จาก Avient เท่าน้ัน ซ่ึงจะทำ�ธุรกิจกับ Avient แตผู่้เดยีว หรอืจะ ไม่ซือ้ หรอืมิฉะน้ันจะรบัผลิตภัณฑ์ที่มีการแข่งขัน นอกจากน้ี ห้ามมิ ให้เรยีกรอ้งให้ลูกคา้ซือ้ผลิตภัณฑ์หรอืบรกิารหน่ึงเพื่อเป็น เงือ่นไขในการขายผลิตภัณฑ์หรอืบรกิารอื่นของคณุ โดยไม่ไดร้บั การอนุญาตจากฝ่ายกฎหมายของ Avient 13.

This Antitrust Policy supplements the Competition section of Avient’s Code of Conduct. This Antitrust Policy applies to everyone at Avient and its subsidiaries, divisions and joint ventures including all officers, employees and agents or other third parties acting on Avient’s behalf anywhere in the world. Consult with the Avient Legal Department if you have any questions. 14.

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. It is Avient’s expectation that our stakeholders be equally committed to environmental responsibility. Each Avient associate’s responsibility is to give the highest priority to safety and health, both on and off the job.

REPÚBLICA FEDERATIVA DO BRASIL CADASTRO NACIONAL DA PESSOA JURÍDICA NÚMERO DE INSCRIÇÃO 02.166.983/0001-66 MATRIZ COMPROVANTE DE INSCRIÇÃO E DE SITUAÇÃO CADASTRAL DATA DE ABERTURA 03/10/1997 NOME EMPRESARIAL AVIENT BRASIL LTDA.

Avient urges all shareholders to vote their proxies so that they can participate in the decisions at the annual meeting. Avient Stock Performance The following is a graph that compares the cumulative total shareholder returns for Avient’s common shares, the S&P 500 index and the S&P Mid Cap Chemicals index, with dividends assumed to be reinvested when received. President and Chief Executive Officer, Avient Corporation Committee: 3 Sandra B.