Ripple joined Avient in 1998. Before joining Avient, he held various commercial roles in the specialty elastomers and specialty polybutylene businesses at Shell Chemical Company. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com

GEORGE INGLIS Vice President, Corporate Controller George Inglis is Vice President, Corporate Controller at Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world. Inglis has taken on numerous special assignments in his tenure, including supporting Avient’s speciality transformation through M&A activity as well as establishing Avient’s Global Business Services (GBS). Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com

Microsoft Word - Conflict Minerals Policy.docx Avient  Corporation  Policy  Statement  on  Conflict  Minerals   Background   In  August  2012,  the  U.S.   Position   Avient  Corporation  supports  efforts  to  end  human  rights  abuses  wherever  they  may  occur,  and  acts  in  accordance   with  our  vision  of  respecting  global  communities.     Avient  is  equally  committed  to  complying  with  the  reporting  obligations  under  Section  1502  of  the  Act  and  the   related  rule  issued  by  the  SEC.    

Este é para certificar que o Sistema de Gestão da Qualidade da: Avient Itupeva - Brasil AVIENT BRASIL LTDA Av.

No. 0562.01) 11/30/2023 Page 1 of 1 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 AVIENT CORPORATION 733 East Water Street North Baltimore, OH 45872 Claire Holman Phone: (419) 257-1327 MECHANICAL Valid To: October 31, 2025 Certificate Number: 0562.01 In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to this laboratory to perform the following automotive plastics tests: Test Method: Test Name: ASTM D412 Tensile ASTM D523 Specular Gloss ASTM D618 (A) Conditioning of Plastics ASTM D624 (Die C) Tear Strength ASTM D638 Tensile Properties ASTM D792 (A) Density and Specific Gravity by Displacement ASTM D1004 Initial Tear Resistance ASTM D1203 (A) Volatile Loss ASTM D1895 (A) Apparent Density, Bulk Factor, Pourability ASTM D1921 Particle Size (Sieve Analysis) ASTM D2240 Durometer Hardness (Shore A and D) ASTM E1331 Color by Spectrophotometry Using Hemispherical Geometry FMVSS 571.302 Flammability FORD BN-102-01 (A) Low Temperature Flexibility FORD BO-131-03 Interior Odor ISO 3795 Determination of Burning Behavior of Interior Materials SAE J323 (A) Cold Cracking (Mandrel Bend) SAE J1351 Hot Odor for Insulation Materials SAE J1545 Instrumental Color Difference Measurement DOC-058151 Angle of Repose 1 Laboratory Developed Method For the tests to which this accreditation applies, please refer to the laboratory’s Mechanical Scope of Accreditation. Accredited Laboratory A2LA has accredited AVIENT CORPORATION North Baltimore, OH for technical competence in the field of Mechanical Testing This laboratory is accredited in accordance with the recognized International Standard ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories.

QUALITY POLICY At Avient, we collaborate with customers to provide specialized and sustainable solutions, accepting material science challenges that can enable a circular economy and meet the needs of the present without compromising future generations to do the same Avient is committed to use the Quality Management System (QMS) to satisfy all applicable customer and regulatory requirements. All associates have a responsibility to ensure Avient achieves its intended results.

AVERY JOHNSON Vice President, Tax Avery Johnson is Vice President, Tax at Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world. Johnson is responsible for Avient’s global tax strategy, processes and administration to support the operational and legal requirements of the company, while working collaboratively with Avient’s Corporate Finance and Treasury departments to ensure consistent communication on transactional and tax planning matters. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com

He leads the company’s efforts to drive new business development and market development, enhance marketing excellence across Avient, and advance our commercial excellence programs. Irwin joined Avient in 2024 after a 22-year career at 3M, where he held roles in sales, global marketing and market development leadership, and P&L responsibility for global businesses. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com

本反垄断政策适用于 Avient 及其子公司、分部和合 资公司的所有人员，包括所有高级职员、员工和代 理，或在世界各地代表 Avient 行事的其他第三方。 为 Avient 工作或代表 Avient 的所有个人都具有个 人责任和义务，以确保实施本反垄断政策，并以合 乎道德和遵从适用法律的方式开展 Avient 的商业活 动。 除非获得 Avient 法务部的相应事先批准，否则 不得不得试图与客户达成协议，来要求其仅向 Avient 采购特定产品的所有需求量、仅将与 Avient 进 行交易，或者不会采购或以其他方式处理竞争产 品。

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.