Langiewicza 50 95-050 Konstantynów Łódzki Poland Clariant Masterbatches (Saudi Arabia) Ltd 2nd Industrial City, Al-Kharj Road Riyadh Saudi Arabia Singapore Pte Ltd 1 International Business Park Singapore 609917 Singapore Pte Ltd 8 Third Chin Bee Road Singapore 618684 Avient South Africa (Pty) Ltd. Development and manufacturing of Colorants products (including additive Masterbatch) No. 2 Nan Yun San Rd., Science City 510663 Guangzhou (Shanghai) Ltd. Development and manufacturing of Masterbatch products (including additive Masterbatch) No 88 Lane 4377 Jindu Road 201108 Shanghai Page 4 of 4

Leadership, EHS&S-PS, Facility Services, Design & Development, Information Technology, Sourcing, Logistics, Legal, and Human Resources 33587 Walker Road Avon Lake OH 44012 United States Avon Lake, OH (SEM) Design and Manufacture of Specialty Engineered Thermoplastics 554 Moore Road Avon Lake OH 44012 United States Kornkamp 50 Ahrensburg Schleswig- Holstein 22926 Germany Avient Corporation - Albany Design and Manufacture of Colorants and Additives for Plastics 4 Rothwell Ave, PO Box 300-009 Auckland 0632 New Zealand Avon Lake Color Design and Manufacture of Specialty Engineered Thermoplastics 33587 Walker Road, Building 416 Avon Lake OH 44012 United States Avient Corporation Design and Manufacture of Specialty Engineered Thermoplastics Pol. WA- 06, Kalyan-Padgha Road Vashere Maharashtra 421302 India Avient Corporation - Vonore, TN Manufacture of Colorants and Additives for Plastics 245 Avecor Drive Vonore TN 37885 United States Avient Corporation Warehouse 225 Industrial Drive Vonore TN 37885 United States AVIENT BRASIL LTDA Sales; Design and Development; Technical assistance; Receipt; Production and Quality Control; Logistics; Supplies; Equipment – only for liquid; Maintenance and Calibration; Management and Human Resources. Unit 3 Dodworth Business Park, Dodworth Barnsley South Yorkshire S75 3SP United Kingdom Page 5 of 5

We are committed to helping our customers develop and manufacture alternative energy applications. The Solution & Impact Avient Protective Materials worked with offshore wind farms to develop low pre-tension mooring systems made from Dyneema® DM20. Avient Protective Materials worked with offshore wind farms to develop low pre-tension mooring systems made from Dyneema® DM20.

CLEVELAND – At the new AutoMobili-D Expo within the North American International Auto Show (January 8-12), PolyOne will feature its advanced materials portfolio developed to pave the way for tomorrow’s automotive mobility technologies. In response, we've developed materials for advanced mobility technologies that meet performance and productivity challenges.” Photo Credit: ©ThinkStock Photo Caption: As advanced mobility technologies race forward, PolyOne has developed an evolving generation of engineered polymers and composites tailored to solve the demands of the connected vehicle.

Consisting of a highly customizable set of technologies, Percept solutions were developed to help customers positively authenticate their products, thereby maintaining brand integrity and reducing risks associated with fraudulent goods. PolyOne provides confidential, expert assistance with technology choice, design, usage, process, product, and specification development. These services help to shorten product development times and maintain quality levels.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Avient’s chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of Avient and each business segment and to allocate resources. Management believes this provides comparability of the performance of the combined businesses.

Mevopur™ Healthcare Colorants and Formulations represent a broad portfolio of polymer colorant solutions developed specifically for today’s complex and highly regulated applications. It also contains more specialty formulations like the HC BT218 grade, which was developed specifically to handle the complexities of biopharmaceutical tubing and deliver excellent weldability, kink resistance, and low levels of extractables. Colorant Chromatics™ Transcend™ Premier Healthcare Colorants are bright, high-temperature solutions developed specifically for medical applications.

Avient’s featured range of products on display includes customized protection film materials, adhesive TPEs for textile fabric, bio-based TPEs, and specialty engineered materials developed to enhance product performance in the building and construction, automotive, and consumer industries. reSound™ REC TPEs: specially developed for automotive interiors, formulated with 55% post-consumer recycled (PCR) content to offer a more sustainable alternative to standard TPE grades without compromising performance criteria such as ultraviolet (UV) stability, low volatile organic compound (VOC) content, low odor, and low fogging in applications such as heating, ventilation, and air conditioning (HVAC) nozzles, interior mats, and cup holders Versaflex™ PF TPEs: specially developed to create a co-extruded tack layer for surface protective films that can be easily applied and maintain tack with minimal build, peel smoothly during removal, and remove entirely with little to no residue or ghosting.

Leadership, EHS&S-PS, Facility Services, Design & Development, Information Technology, Sourcing, Logistics, Legal, and Human Resources Certification Date: 29 SEP 2023 Effective Date: 27 FEB 2025 Expiration Date: 27 SEP 2026 Revision Date: 05 MAR 2025 Dominic Townsend, President Page 1 of 5 Avon Lake Corporate Responsible Care Corporate Support Activities in Sr. Leadership, EHS&S-PS, Facility Services, Design & Development, Information Technology, Sourcing, Logistics, Legal, and Human Resources 33587 Walker Road Avon Lake OH 44012 United States Avient Corporation HQ Responsible Care Corporate Support Activities in Sr. Unit 3 Dodworth Business Park, Dodworth Barnsley South Yorkshire S75 3SP United Kingdom Page 5 of 5

For manufacturers and producers that need to work better and faster, proprietary Aquamix custom formulations are our business-as-usual solutions for the world’s leading companies. Our manufacturing facility also offers technologically advanced product development services. Our manufacturing facility also offers technologically advanced product development services.