S A F E T Y M AT M A N U FAC T U R E R P R E S S U R E - S E N S I T I V E S W I T C H M A T S • Broad range of hardness and durability • Availability of custom colors • Long-lasting material for use in high-traffic areas including amusement park rides and workstations • Moisture and abrasion resistance • Provided durable plastisol solutions with needed hardness for specific applications • Offered customized colors to meet brand and product specifications • Supplied a solution giving added protection against moisture intrusion • Incorporated antimicrobial additives to resist mold growth CORE™ Vinyl Plastisols KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION DURABILITY + CUSTOMIZATION LEARN MORE © 2023, Avient Corporation, All Rights Reserved https://www.avient.com/products/vinyl-formulations/vinyl-plastisols-organosols/core-vinyl-plastisols

W A X M A T ® G R I P T A P E • Provide alternative material to traditional wax and EVA foam for grip on surfboards • Translucent appearance • Coextrude with polypropylene (PP) film • Excellent UV resistance • Customized formulation for exceptional hydrophobic grip and non-abrasive finish • Incorporated specialty additives to enhance UV resistance and inhibit mold growth • Solved technical processing challenges to achieve efficient coextrusion of materials and achieve optimal bonding to adhesive backing • Enabled customer to achieve market differentiation and expand into new markets and applications Custom GLS™ TPE Wet Grip Formulation KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION WET GRIP TECHNOLOGY LEARN MORE Copyright © 2021, Avient Corporation.

S I D IN G & C LA D D I N G M A N U FAC T U R E R P R O F I L E E X T R U S I O N • Achieve consistent distribution and uniform cell structure • Avoid adverse chemical reactions caused by material incompatibility with PVC formulations • Maintain impact resistance and durability • Attain thermally-stable chemical foaming agent (CFA) and gas decomposition temperatures to avoid manufacturing downtime • Ensure the integrity of color, finish, and aesthetics • Validated performance and compatibility during formulation and testing to confirm material compatibility and consistency • Established processing parameters for real- time precision in temperature, pressure, and extrusion speed • Optimized CFA and process to balance weight reduction and retain mechanical properties and aesthetics Hydrocerol Chemical Foaming Agents KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION LIGHTWEIGHTING + QUALITY LEARN MORE Copyright © 2025, Avient Corporation. https://www.avient.com/products/polymer-additives/foaming-agents/hydrocerol-chemical-foaming-agents Slide 1: siding & cladding Manufacturer

Progress on TRA Plan ­ Reductions due to additional actions taken CAS RN Substance Name Reductions due to additional actions taken Quantity Does the facility have a documented pollution prevention plan? No Did the facility complete any pollution prevention activities in the current NPRI reporting year No CAS RN Substance Name Reductions due to additional actions taken Quantity 117­81­7 Bis(2­ethylhexyl) phthalate The amount of reduction in use of the substance at the facility during the reporting period that resulted due to the additional actions. No Amount 85­44­9 Phthalic anhydride The amount of reduction in use of the substance at the facility during the reporting period that resulted due to the additional actions.

Organisational structure ColorMatrix Europe Limited are global innovators in advanced colorant, additive and dosing technologies that are engineered to improve the performance, processing, aesthetics and sustainability of plastic products. ColorMatrix is part of the Color, Additives and Inks segment. In the Avient Supplier Code of Conduct, which is applicable to the suppliers of ColorMatrix, Avient prescribes that its suppliers should not use slavery or human trafficking in connection with any product supplied to Avient.

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. For the same reasons, Avient is unable to address the probable significance of the unavailable information. In addition, operating income before the effect of special items is a component of Avient’s annual incentive plans and is used in debt covenant computations.

Kronimus joined Avient in March 1999, and in addition to leading the company’s engineered materials business in Europe and India, also serves as Avient’s legal representative in the region, responsible for building and maintaining relationships with local governments and associations. In previous roles at Avient, Mr. Kronimus served as international controller and finance director as well as other positions of financial, commercial and plant management in Avient’s Color, Additives & Ink business unit.

TERMS AND CONDITIONS These Terms and Conditions govern the sale of Products to another (“Buyer”) by Avient Corporation and its affiliates (“Seller”). 1. If Buyer resells the Products, Buyer agrees to the Terms and Conditions Regarding Buyer Resale of Avient Products located at www.avient.com/terms. No modification or addition to the contract shall occur by the acknowledgment or acceptance by Seller of a purchase order, acknowledgment, release or other form submitted by Buyer containing additional or different terms or conditions. 20.

In addition to the information contained in this document, which is focused on quality systems and management, Avient has prepared a separate summary of Avient’s Environmental, Social and Governance (ESG) policies and practices that is available upon request. Avient can provide its NDA form upon request Some have additional certifications such as ISO 13485, ISO 14000, ISO 22000 and other third-party certified standards such as Responsible Care® and IATF.

Avient Corporation Corporate Governance Guidelines The Board of Directors (the “Board”) of Avient Corporation (the “Company”) has adopted the following Corporate Governance Guidelines (the “Guidelines”). In addition, the Board shall determine that a director is not independent if the director: A. 2024年3月6日 Avient Corporation Corporate Governance Guidelines 1.