ColorMatrix™ Ultimate™ UV Light Barrier & OnCap™ Light Shield UV and Visible Light Barrier Masterbatches Additive for PET that effectively blocks ultraviolet light transmission, protecting products and brand integrity during storage, transportation and in the retail environment. Smartbatch™ Color and Additive Concentrates offer superior UV weathering protection for solar power installations. Data from Clariant Masterbatch is excluded from this report as it is outside of the reporting period.

ColorMatrix™ Ultimate™ UV Light Barrier & OnCap™ Light Shield UV and Visible Light Barrier Masterbatches Additive for PET that effectively blocks ultraviolet light transmission, protecting products and brand integrity during storage, transportation and in the retail environment. Smartbatch™ Color And Additive Concentrates offer superior UV weathering protection for solar power installations. Data from Clariant Masterbatch is excluded from this report as it is outside of the reporting period.

These include black colorants developed for the coloration of polyamide and polyester yarns with specific undertones or where ultraviolet (UV) protection may be required. Avient’s portfolio of Cesa™ Fiber Additives, which can help enhance performance and improve the processing of extruded fibers, will also be on display. The MagnaColours ITO range can offer optimized textile performance to meet strict industry compliance standards through a wide range of UV treatments, fire retardants, dyes, chemicals, and other treatments.

Representation based on position: By the Chair of the Board and the Managing Director, each on their own, and by any two Board members jointly Persons role surname, first name(s) / company name date of birth / identity code citizenship Chair of the Board of Directors Merklein, Norbert 03.05.1964 Citizen of Germany Member of the Board of Directors Norén, Jenny Eva Kristina 18.06.1975 Citizen of Sweden Member of the Board of Directors Smeds, Jan-Håkan 22.03.1961 Citizen of Finland Member of the Board of Directors Vetter, Alexander Helmut 04.07.1968 Citizen of Germany Managing Director Norén, Jenny Eva Kristina 18.06.1975 Citizen of Sweden Auditor PricewaterhouseCoopers Oy 0486406-8 Auditor with principal responsibility Grönroos, Maria Alice 19.02.1967 Citizen of Finland Additional information No details about beneficial owners have been registered for the company Name history Avient Finland Oy 01.12.2020 - Clariant Plastics & Coatings (Finland) Oy 04.01.2016 - 01.12.2020 Clariant Masterbatches (Finland) Oy 31.03.2007 - 04.01.2016 Source of information: Finnish Patent and Registration Office

Certificate of Incorporation AVIENT NEW ZEALAND LIMITED 64590 NZBN: 9429040671338 This is to certify that HOECHST (NEW ZEALAND) LIMITED was incorporated under the Companies Act 1955 on the 3rd day of May 1963 and changed its name to HOECHST NEW ZEALAND LIMITED on the 30th day of January 1974 and was reregistered to become a company under the Companies Act 1993 on the 3rd day of April 1995 and changed its name to CLARIANT (NEW ZEALAND) LIMITED on the 27th day of June 1997 and changed its name to AVIENT NEW ZEALAND LIMITED on the 17th day of May 2021.

G1QCertificate Number: 82756 Certificate of Incorporation on Change Of Name For Registrar of Companies I hereby certify that CLARIANT PLASTICS & COATINGS (IRELAND) LIMITED having, by a Special Resolution of the Company, and with the approval of the Registrar of Companies, changed its name, is now incorporated as a LTD - Private Company Limited by Shares under the name AVIENT COLORANTS IRELAND LIMITED and I have entered such name on the Register accordingly.

PROFILE/SHEET EXTRUDER R A I L S A N D K I C K P L A T E S • Convert existing PVC profile and sheet rails and kick plates to polyolefin resin to meet Class A fire safety (ASTM E84) • Provide a system that meets healthy building certifications and approvals • Utilize a more sustainable flame retardant technology, removing brominated or halogenated flame retardants from the environment • Achieve non-compromising performance in aesthetics, impact, dimensional stability, CLTE, and E84 testing • Provided broad flame retardant platform, backed by extensive application and industry expertise, to meet global flammability standards • Has largest UL94 recognized Prospector membership with HB, V-0, V-1, V-2 and 5VA/5VB ratings, and broad glow wire performance products • Included in-house UL certified labs and manufacturing locations to perform UL94 material sampling and testing • Supported application development to meet fire safety standards, address current or emerging healthy building codes, smart home requirements, and LEED credits • Offered custom formulations in small lot quantities Cesa™ Flam Non-Halogen Flame Retardants KEY REQUIREMENTS WHY AVIENT? All Rights Reserved. https://www.avient.com/products/polymer-additives/performance-enhancement-additives/cesa-flame-retardant-additives

Cesa™ Fiber Additives Chain Extenders for Recycled PET Fibers In an effort to contribute to the circular economy, the use of recycled content in textile products is growing. The Cesa™ Fiber Additives portfolio includes chain extenders specially formulated to help recouple depolymerized polymer chains and support a more stable processing of recycled flakes into fibers.

Cesa™ Flame Retardant Additives PTFE-free and Non-halogen for Polycarbonate Polycarbonate is a material of choice for E&E products as it provides very good impact strength, dimensional stability, and heat resistance.Some applications require the use of flame-retardant solutions to increase safety and ensure compliance with fire hazard standards. Avient’s PTFE-free and non-halogen Cesa™ Flame Retardant Additives for polycarbonate are formulated without PTFE and are non-halogen in accordance with the IEC 61249-2-21 standard.

On July 1, 2020, the Company completed its acquisition of the equity interests in the global color business of Clariant AG, a corporation organized and existing under the laws of Switzerland (Clariant), and certain assets of Clariant Chemicals (India) Limited, a public limited company incorporated in India and an indirect majority owned subsidiary of Clariant (Clariant India). Clariant Color Acquisition On July 1, 2020, the Company completed the Clariant Color Acquisition. Note 2 — BUSINESS COMBINATIONS On July 1, 2020, we completed our acquisition of the equity interests in the global color business of Clariant AG, a corporation organized and existing under the law of Switzerland (Clariant), and certain assets of Clariant Chemicals (India) Limited, a public limited company incorporated in India and an indirect majority owned subsidiary of Clariant (Clariant India).