Automotive Removable Roof Bracket Explore how Trilliant™ conductive formulations help solve the performance challenges for pipette tip applications Protected membranes from effects of flora, fungi and algae

Use only approved and secured methods when sharing Confidential Data and ensure recipients have authorization to receive Confidential Data and/or have obtained prior approval from User’s manager; and Obtain approval from Avient’s Information Technology department before procuring, installing, connecting, using, or decommissioning software, systems, applications, or non-Avient devices to or from Information Systems, including, but not limited to, on premise and cloud-based systems. Revealing account usernames, passwords, or other Personal Data to others or allowing use of Information Systems by others, including family and other household members;

Message from the Governance and Corporate Responsibility Committee Page 4 Message from Avient's VP of Sustainability Page 17 Describe how processes for identifying, assessing and managing climate-related risks are integrated into the organization’s overall risk management

OnColor™ REC Polymer Colorants are color concentrates derived from a recovered carbon black as opposed to using traditional carbon black. OnColor REC is formulated using recycled content, such as end-of-life tires, thereby preventing tires from entering the waste stream. See how our specially formulated colorants can help differentiate your brand

Boundaries of the reporting company GHG emissions covered by the verification: • Operational Control • Global Exclusions: • Fugitive refrigerants from units Energy: o Diesel Fuel Consumption: 2,868,323 kWh o Natural Gas Fuel Consumption: 178,696,287 kWh o Renewable Energy Consumed - Self Generated (solar): 681,059 kWh o Renewable Energy Consumed - Self Generated (Wind): 2,385,048 kWh o Grid Electricity Consumed: 409,650,679 kWh o Renewable Energy Credits (REC) Purchased: 112,413,420 kWh o Renewable Electricity Consumed – Offsite: 138,415,253 kWh Page 2 Period covered by GHG emissions verification: • 2023年1月1日 to 2023年12月31日 Global Warming Potential (GWP) and emission factor data sets: • IPCC GWP: AR6 • USEPA Emission Factor Hub, released 2024 • USEPA eGRID, released 2024 • Final Rule (40 CFR 98) - Industrial Sector 2013 • DEFRA, released 2023 • IEA, released 2023 • European Residual Mix, released 2022 v2.0 GHG Reporting Protocols against which verification was conducted: • World Resources Institute (WRI)/World Business Council for Sustainable Development (WBCSD) Greenhouse Gas Protocol, Corporate Accounting and Reporting Standard, Revised Edition (Scope 1 and 2) and the GHG Protocol Scope 2 Guidance, an amendment to the GHG Protocol Corporate Standard • WRI/WBCSD Corporate Value Chain (Scope 3) Accounting and Reporting Standard Verification Protocols used to conduct the verification: • ISO 14064-3 Second Edition 2019-04: Greenhouse gases - Part 3: Specification with guidance for the verification and validation of greenhouse gas statements • Apex’s standard procedures and guidelines for external Assurance of Sustainability Reports and International Standard on Assurance Engagements (ISAE) 3000 Revised, Assurance Engagements Other than Audits or Reviews of Historical Financial Information (effective for assurance reports dated on or after Dec. 15, 2015), issued by the International Auditing and Assurance Standards Board. Page 3 Verification Opinion: Based on the verification process and procedures conducted to a limited assurance level of the GHG emissions statement shown above, Apex found no evidence that the GHG emissions statement: • is not materially correct and is not a fair representation of the GHG emissions data and information; and • has not been prepared in accordance with the WRI/WBCSD GHG Protocol Corporate Accounting and Reporting Standard (Scope 1 and 2), and WRI/WBCSD Greenhouse Gas Protocol Corporate Value Chain Accounting and Reporting Standard (Scope 3).

Color degradation; product protection ColorMatrix™ Ultimate™ UV Light Barrier APR/EPBP approved additive to block ultraviolet light transmission Protects the product and brand integrity during storage, transportation and in the retail environment, maintaining product quality and enhancing shelf life. Some of the information arises from laboratory work with small-scale equipment which may not provide a reliable indication of performance or properties obtained or obtainable on larger-scale equipment. Processing conditions can cause material properties to shift from the values stated in the information.

FIBER OPTICAL CABLES Molecular Structure Chemical Name Cured Phenol-Aldehyde from melt-spun Novalac resin. Composition Novaloid, or Phenolic fiber, is a thermoset organic fiber produced from a phenolic novolac resin. They also add important characteristics, such as SWELLCOAT® water-blocking, water repellence, adhe- sion, color, and wear and UV-resistance to these and many other applications.

No freedom from any patents or other industrial or intellectual property rights is granted or to be inferred. They also add important characteristics, such as SWELLCOAT® water-blocking, water repellence, adhe- sion, color, and wear and UV-resistance to these and many other applications.

Automotive Removable Roof Bracket Explore how Trilliant™ conductive formulations help solve the performance challenges for pipette tip applications Protected membranes from effects of flora, fungi and algae

AVNT-2021.06.30-News Release 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Registration Details for December 9th Investor Day CLEVELAND – 2021年11月3日 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable material solutions, will host an Investor Day for investment professionals on 2021年12月9日（星期四）, from 8:00 a.m. to 1:00 p.m., at the New York Marriott Marquis hotel. At our 2021 Investor Day, we will take a deeper dive into our how we create value for our stakeholders. Investor Day participants will hear presentations from Mr.