PolyOne Corporation Chairman, President and Chief Executive Officer, For the same reasons, the Company is unable to address the probable significance of the unavailable information.

Event Type: Corporate Conference Call Q1 Avient Corporation Earnings Conference Call More Q4 Avient Corporation Earnings Conference Call More

F -27, MIDC, Ranjangaon, Taluka – Shirur, Pune Maharashtra 412220 India Hold this Opinion Statement No. 798019/2023 The Organization has demonstrated that they have followed the guidelines provided for Good Manufacturing Practices as per the ICHQ7 guidelines in their organization for the following Business activity: Research and Development, Manufacture of Color additives, Concentrates and Specialty Formulations for intended use in pharma and other industries Theuns Kotze, Managing Director – IMETA Assurance Last Audit Date: 31.10.2023 BSI Group India Private Limited T: +91-4762-9000 (CIN U74899DL1999PTC101381 info.in@bsigroup.com The Mira Corporate Suites bsigroup.com/en-IN Plot 1&2, Ishwar Nagar, Mathura Road New Delhi-110065, India

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Avient is fully committed to protecting the environment by addressing climate change, conserving natural resources and preventing pollution. Avient’s Corporate EH&S Department defines the strategy and monitors performance against related management system standards.

Silcocat™ Peroxide Dispersions can improve your silicone molding process by helping you overcome poor dispersion, slow incorporation, and address safety challenges associated with powdered organic peroxides.  Corporate Literature

Certificate Avient Corporation S E s Certificate Of Conformance This is to certify that the Quality Management System of: Avient Corporation 33587 Walker Road, Building 428 Avon Lake OH 44012 United States has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: ISO 9001:2015 The Quality Management System is applicable to: Manufacture of plastic compounds, color and performance additives, engineered thermoplastics, vinyl resins, custom mixed plastic materials, custom and commodity colorants for plastics, polyurethane systems, and plasticizers with design and sampling support at Suwanee, GA, and purchasing, customer service, logistics, quality, design and sampling support at PolyOne Corporate Headquarters at Avon Lake, OH, and distribution of resins Certificate No: 31307 Certification Date: 12 OCT 1995 Effective Date: 11 JUL 2024 Expiration Date 07 OCT 2025 Revision Date: 17 JUL 2024 Dominic Townsend, President Page 1 of 4 S E s ISO 9001:2015 Certificate Of Conformance ANNEX Certificate No.: 31307 Avient Corporation At the below facilities The Manufacture of Pultruded and Filament wound components Pultrusion and CRTM 3943, Valley East Industrial Drive, Buildings 1,2,3,4 Birmingham - AL 35217 United The Manufacture of Pultruded and Filament wound components Pultrusion and Filament Wound Tubing 3968, Valley East Industrial Drive, Building 5 Birmingham - AL 35217 United States The Manufacture of Pultruded and Filament wound components Pultrusion 3950, Valley East Industrial Drive, Building 6 Birmingham - AL 3517 United States Corporation Management of QMS. Central No. 200 50200 Toluca Mexico Tossiat, France Design and Manufacture of Color and Additive Concentrates and Specialty Compounds , 43 Place de la gare Tossiat - 01250 France Vic (Barcelona), Design, development and production of color concentrates and additives for plastic and synthetic fibers Carretera de Vic a Olot,C-153, km 5 08500 Masies de Roda Vonore Warehouse Warehouse , 225 Industrial Drive Vonore - TN 37885 United States Vonore, TN Manufacture of Colorants for Plastics , 245 Avecor Drive Vonore - TN 37885 United States Corporation- Suwanee, GA Design and Sampling , 2900 Shawnee Industrial Way Suwanee - GA 30024 United NEU Specialty Engineered Materials, LLC Compound and supply of thermoplastics for the medical device industry , 15 Corporate Drive North Haven - CT 06473 United PolyOne Polymers India Pvt. F-27 , MIDC Ranjangaon, Shirur 412 220 Pune India Page 4 of 4

We’re also directly addressing customer needs and market trends for sustainability and lightweighting.” Michelle Maniscalco Senior Manager, Marketing Communications PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com Company Officers

This design showcases our ability to collaborate with customers to address multiple challenges.” PolyOne Corporation, with 2012 revenues of $2.9 billion, is a premier provider of specialized polymer materials, services and solutions. Company Officers

Avient Corporation provides specialized and sustainable materials solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Media Contact Nicole DeChant Avient Corporation nicole.dechant@avient.com   Company Officers