titel 20 21 -0 4- 12 1 4: 06 :2 8 Business Register extract Netherlands Chamber of Commerce CCI number 34246357 Page 1 (of 2) Legal entity RSIN 815617781 Legal form Besloten Vennootschap (comparable with Private Limited Liability Company) Statutory name Avient Colorants Netherlands B.V. The Chamber of Commerce recommends that this document be viewed in digital form so that its integrity is safeguarded and the signature remains verifiable. 20 21 -0 4- 12 1 4: 06 :2 8 under number CHE-112.279.714 Sole shareholder since 20-10-2015 (registration date: 03-11-2015) Board members Name Borst, Rainer Erich Date of birth 10-10-1961 Date of entry into office 01-07-2020 (registration date: 06-07-2020) Title Director Name Kamalak, Ihsan Date of birth 21-08-1985 Date of entry into office 01-07-2020 (registration date: 06-07-2020) Title Director Name Merklein, Norbert Date of birth 03-05-1964 Date of entry into office 05-03-2021 (registration date: 30-03-2021) Extract was made on 12-04-2021 at 14.06 hours. Business Register extract Netherlands Chamber of Commerce CCI number 34246357 Page 2 (of 2) N/A 2021-04-12T14:06:40+0200 Utrecht Kamer van Koophandel Dit document is digitaal ondertekend 2021-04-12T14:06:42+0200

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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: • January 1, 2023 to December 31, 2023 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).

Boundaries of the reporting company GHG emissions covered by the verification:  Operational Control  Global Exclusions:  Fugitive refrigerants Types of GHGs: CO2, N2O, CH4 GHG Emissions Statement:  Scope 1: 18,242 metric tons of CO2 equivalent  Scope 2 (Location-Based): 134,244 metric tons of CO2 equivalent  Scope 2 (Market-Based): 85,892 metric tons of CO2 equivalent  Scope 3: o Category 3 – Fuel and energy-related activities (electricity transportation and distribution losses only): 8,777 metric tons of CO2 equivalent Data and information supporting the Scope 1 and Scope 2 GHG emissions assertion were in most cases historical in nature and in some cases were estimated. 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).

Boundaries of the reporting company GHG emissions covered by the verification:  Operational Control  Global Exclusions:  Fugitive refrigerants  Mobile Combustion Types of GHGs: CO2, N2O, CH4 GHG Emissions Statement:  Scope 1: 34,627 metric tons of CO2 equivalent  Scope 2 (Location-Based): 167,333 metric tons of CO2 equivalent  Scope 2 (Market-Based): 99,465 metric tons of CO2 equivalent  Scope 3: o Category 3 – Fuel and energy-related activities: 62,049 metric tons of CO2 equivalent Data and information supporting the Scope 1 and Scope 2 GHG emissions assertion were in most cases historical in nature and in some cases were estimated. 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).

CESA™ Release Additives Lubrication PRODUCT SELECTION GUIDE CESA RELEASE – STANDARD OFFERINGS POLYMER FAMILY MATERIAL PRODUCT NAME DOSAGE Polyolefin PEA0820046 CESA Release PEA0820046 0.5–2.5% Polypropylene PPA0820053 CESA Release PPA0820053 0.5–2% Polyamide ABA0820031 CESA Release ABA0820031 1–3% Polyester NGA0820008 CESA Release NGA0820008 1–2% Polycarbonate NCA0820014 CESA Release NCA0820014 1–2% Styrenic SLA0820008 CESA Release SLA0820008 1–5% TPU RUA0820025 CESA Release 20025 0.5–2% CESA Release additives can be used in combination with other CESA masterbatches, and formulations can be customized for most applications.

Version / Date: 1 (no adjustments) / 30.12.2024 Page 1 of 2 ISCC PLUS Certificate Certificate Number: ISCC-PLUS-Cert-PL214-26100824 Bureau Veritas Polska Sp. z o.o. Version / Date: 1 (no adjustments) / 30.12.2024 Page 2 of 2 Annex I to the certificate: Sustainable materials handled by the certified site (This annex is applicable for all scopes except of Trader, Trader with storage, Warehouse, Logistic centres, MTBE and ETBE) This annex is only valid in connection with the certificate: ISCC-PLUS-Cert-PL214-26100824 issued on 30.12.2024 Input material Output material Add-ons (voluntary)1) Raw material category2) SAI FSA3) FEFAC4) Polypropylene (PP) Plastic Compounds (PP) NO Bio Bio-circular Circular N/A N/A Polyethylene (PE) Plastic Compounds (PE) NO Bio Bio-circular Circular N/A N/A 1) ISCC PLUS add-ons (voluntary application, see www.iscc-system.org for further information): • 202-04: Food Security Standard • 205-02: Consumables • 202-07: Low ILUC-risk feedstock • 205-03: Non GMO for food and feed • 205-01: GHG emission requirements • 205-04: Non GMO for technical markets 2) Bio raw materials complies with the ISCC Principles 1 – 6 for the cultivation and harvesting of sustainable biomass.

Avient Q3 2023 Earnings - November 2, 2023 Avient IR Presentation -- Goldman Sachs and Morgan Stanley Investor Meetings -- 2/17/2021 to 2/18/2021 PolyOne IR Presentation – Global High Yield & Leveraged Finance Conference – 2/24/2020 to 2/26/2020

Avient Q3 2023 Earnings - November 2, 2023 Avient IR Presentation -- Goldman Sachs and Morgan Stanley Investor Meetings -- 2/17/2021 to 2/18/2021 PolyOne IR Presentation – Global High Yield & Leveraged Finance Conference – 2/24/2020 to 2/26/2020

Avient Q3 2023 Earnings - November 2, 2023 Avient IR Presentation -- Goldman Sachs and Morgan Stanley Investor Meetings -- 2/17/2021 to 2/18/2021 PolyOne IR Presentation – Global High Yield & Leveraged Finance Conference – 2/24/2020 to 2/26/2020