The Board of Directors has ultimate responsibility for matters related to governance and corporate responsibility, and the Governance and Corporate Responsibility Committee provides oversight and guidance with regard to how the Board and management evaluate and integrate corporate responsibility and sustainability into Avient’s business strategy, decision-making and stakeholder communication, including this Position on Human Rights. Our health and safety policies, Avient Corporation 33587 Walker Road Avon Lake, OH 44012 2 which apply to all Avient associates, are to safeguard the health and well-being of each person while at work. Avient takes pride in our role as a responsible corporate citizen, and the importance of collaborative relationships with our many stakeholder groups.

Microsoft Word - IATF 16949 North Baltimore[80].doc ABS Quality Evaluations Certificate Of Conformance This is to certify that the Quality Management System of: Avient Corporation Engineered Materials Division Avient Corporation 733 E. Page 1 of 2 ABS Quality Evaluations IATF 16949:2016 Certificate Of Conformance ANNEX Certificate No: IATF No: 38972 0422162 Avient Corporation Engineered Materials Division At Below Facilities: Facility: Corporate 33587 Walker Road Avon Lake, OH 44012 U.S.A.

EXTRUSOR Tornillo Tornillo de regulación de rosca profunda de 1" a 6" Relación de compresión 3:1 Cabezal De tubo: sin hilera (para tamaños pequeños) De presión: para tamaños de 1" o superiores Dado De tubo: bajo coeficiente de estirado De presión: hilera corta L/D 24:1 o superior Paquete de mallas Malla de 20/40/20 Canal de enfriamiento 50–65°C recomendado Secador Aire caliente o desecante, 4 horas a 79–85°C PROCESAMIENTO Temperatura Precalentamiento del alambre Ninguno Zonas de alimentación 143–149°C Transición 160–171°C Dosificación 171–176°C Cabezal/dado 176–185°C Material fundido 176–185°C Fusión máxima 199°C Compuesto de purga HDPE www.avient.com Copyright © 2020, Avient Corporation. www.avient.com Copyright © 2020, Avient Corporation.

EXTRUDER Screw 1" to 6" deep flighted metering screw 3:1 compression ratio Tooling Tubing type – zero land (for smaller sizes) Pressure type – for 1" size or larger Die Tubing type – low DDR Pressure type – short land L/D 24:1 or higher Screen Pack 20/40/20 Mesh Cooling Trough 120–150 °F (50–65 °C) recommended Dryer Hot air or desiccant type, 4 hours at 175–185 °F PROCESSING Temperature Wire Preheat None Feed Zones 290–300 °F Transition 320–340 °F Metering 340–350 °F Head/Die 350–365 °F Target Melt 350–365 °F Maximum Melt 390 °F Purge Compound HDPE www.avient.com Copyright © 2020, Avient Corporation. www.avient.com Copyright © 2020, Avient Corporation.

www.avient.com Copyright © 2020, Avient Corporation. www.avient.com Copyright © 2020, Avient Corporation.

www.avient.com Copyright © 2020, Avient Corporation. www.avient.com Copyright © 2020, Avient Corporation.

www.avient.com Copyright © 2020, Avient Corporation. www.avient.com Copyright © 2020, Avient Corporation.

www.avient.com Copyright © 2020, Avient Corporation. www.avient.com Copyright © 2020, Avient Corporation.

Microsoft Word - Avient_RY 2022 CDP Verification Opinion Declaration_07-24-23 WATER RESOURCES • ENVIRONMENTAL SERVICES • HEALTH & SAFETY • CLIMATE CHANGE Apex Companies, LLC • (800) 733-2739 • www.apexcos.com VERIFICATION OPINION DECLARATION GREENHOUSE GAS EMISSIONS To: The Stakeholders of Avient Corporation Apex Companies, LLC (Apex) was engaged to conduct an independent verification of the greenhouse gas (GHG) emissions reported by Avient Corporation (Avient) for the period stated below. Energy: o Diesel Fuel Consumption: 4,754,671 kWh o Natural Gas Fuel Consumption: 184,415,668 kWh o Renewable Energy Consumed - Self Generated (solar): 260,378 kWh o Renewable Energy Consumed - Self Generated (Wind): 2,554,186 kWh o Grid Electricity Consumed: 436,400,546 kWh Page 2 WATER RESOURCES • ENVIRONMENTAL SERVICES • INDUSTRIAL HYGIENE  •  SAFETY  •  SUSTAINABILITY  Apex Companies, LLC • (800) 733‐2739 • www.apexcos.com  o Renewable Energy Credits (REC) Purchased: 100,691,000 kWh o Renewable Electricity Consumed – Offsite: 128,982,866 kWh Period covered by GHG emissions verification:  January 1, 2022 to December 31, 2022 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. 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).

Microsoft Word - AvientRY 2021 CDP Verification Opinion Declaration_07-26-22r WATER RESOURCES • ENVIRONMENTAL SERVICES • HEALTH & SAFETY • CLIMATE CHANGE Apex Companies, LLC • (800) 733-2739 • www.apexcos.com VERIFICATION OPINION DECLARATION GREENHOUSE GAS EMISSIONS To: The Stakeholders of Avient Corporation Apex Companies, LLC (Apex) was engaged to conduct an independent verification of the greenhouse gas (GHG) emissions reported by Avient Corporation (Avient) for the period stated below. Energy: o Diesel Fuel Consumption: 7,268,012 kWh o Natural Gas Fuel Consumption: 90,498,342 kWh o Renewable Energy - Self Generated (solar): 252,779 kWh o Renewable Energy - Self Generated (Wind): 2,399,531 kWh o Electric Power: 339,815,274 kWh Page 2 WATER RESOURCES • ENVIRONMENTAL SERVICES • HEALTH & SAFETY • CLIMATE CHANGE Apex Companies, LLC • (800) 733-2739 • www.apexcos.com o Renewable Energy Credit (REC): 121,411,062 kWh o Renewable Power – Offsite: 27,119,749 kWh Period covered by GHG emissions verification:  January 1, 2021 to December 31, 2021 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. 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).