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. This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (refer to joint ISO-ILAC-IAF Communiqué dated April 2017).

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LONG BEACH, California – January 19, 2024 – Avient Corporation, a leading provider of specialized and sustainable material solutions and services, announced its Specialty Inks team will be highlighting new additions and updates to its sustainable inks portfolio starting today at Impressions Expo Long Beach, an annual trade show dedicated to the imprinted and decorated apparel industry. The Avient Specialty Inks team is exhibiting in booth 1621 at the Impressions Expo in Long Beach, California, from January 19-21, 2024. About Avient  

Avient Announces Quarterly Dividend... Avient Board of Directors Appoints Ashish K. Avient Announces First Quarter 2025 Results...

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Our strength lies in our collaborative culture, where diverse teams across the globe work together to build on each other’s ideas and deliver innovative solutions. We are Avient. Avient Canada ULC

Develop and implement solutions to end plastic waste while supporting AEPW $1.5B investment in key initiatives. 2030 SUSTAINABILITY TARGETS 20 2021 AVIENT INVESTOR DAY 21 • Investor Day to be held December 9, 2021 in New York, NY • Company will provide updates on its key growth drivers with a deep focus on sustainable solutions Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Healthcare 8–10% Composites / 5G 10% Growth in Asia / LATAM 5% Other (GDP growth) 2–3% Avient 6.5% • Senior leadership team to also present on Clariant MB integration, M&A opportunities and capital allocation priorities PEER COMPARISONS 22 As a specialty formulator, we don’t require significant capital investment, as compared to the base resin raw material suppliers we purchase from. D is t. ) LB Median: 5%Median: 3% Avient reflects 2021 estimated revenue of $4,650M and excludes one-time synergy capture CAPEX ($20M) Avient Specialty Other Free Cash Flow Conversion (1) 2021E (%) Being asset light helps us to generate strong free cash flow that is in line with specialty formulators. We are Avient.

For personalized technical support on your packaging application, consult with our dedicated team of Application Development Technical Services (ADTS) engineers.

For personalized technical support on your packaging application, consult with our dedicated team of Application Development Technical Services (ADTS) engineers.

MATERIAL REDUCES COSTS WITH LOWER SPECIFIC GRAVITY, AND HIGHER FLOW THAN COMPETITIVE TPV © 2021, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 To learn more about Versalloy™ Thermoplastic Vulcanizate, contact Avient at +1.844.4AVIENT (1.844.428.4368) or visit avient.com. THE SOLUTION In the course of their research into material options, the manufacturer’s team invited Avient to suggest options for an alternative TPV based on its global reputation for superior products and service. The Avient team assessed the application’s technical and operational requirements, and recommended GLS Versalloy™ XL- 9045-1 alloy in 45 Shore A durometer, an FDA-compliant medical TPV grade designed for overmolding onto PP.