No. 0962.01) 09/05/2023 Page 1 of 1 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 AVIENT CORPORATION 80 North West Street Norwalk, OH 44857 Craig Polta Phone: 419 660 4278 MECHANICAL Valid To: September 30, 2025 Certificate Number: 0962.01 In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to this laboratory to perform the following tests on plastics: Test Method(s) Test Name ASTM D256; ISO 180 Notched Izod ISO 179 (1eA) Determination of Charpy Impact ASTM D523 Gloss ASTM D618 (Method A) Conditioning of Test Specimens ASTM D792 (Method A) Specific Gravity ASTM D1238 (Method B) Melt Flow Rate ASTM D3012 Thermal Oxidative Stability ASTM D3641 Injection Molding Test Specimens FMVSS 302 Flammability ASTM E1331; SAE J1545 Spectrophotometric Color Difference SAE J1885 (Rev. Accredited Laboratory A2LA has accredited AVIENT CORPORATION Norwalk, OH for technical competence in the field of Mechanical Testing This laboratory is accredited in accordance with the recognized International Standard ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories.

REPÚBLICA FEDERATIVA DO BRASIL CADASTRO NACIONAL DA PESSOA JURÍDICA NÚMERO DE INSCRIÇÃO 02.166.983/0001-66 MATRIZ COMPROVANTE DE INSCRIÇÃO E DE SITUAÇÃO CADASTRAL DATA DE ABERTURA 03/10/1997 NOME EMPRESARIAL AVIENT BRASIL LTDA.

Avient makes no representations, guarantees, or warranties of any kind with respect to the information contained in this document about its accuracy, suitability for particular applications, or the results obtained or obtainable using the information. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application. Contact Avient to tap into our expertise and learn more about our specialty TPEs.

Business Number: 898451794 Mailing Address: Delivery Mode: GeneralDelivery Address Line 1: 17 Tideman Drive City, Province/Territory, Postal Code: Orangeville Ontario L9W3K3 Country: Canada Facility Name: Orangeville Plasticizer NAICS Code: 326198 NPRI ID: 2277 Physical Address: Address Line 1: 15 Tideman Drive City, Province/Territory, Postal Code: Orangeville Ontario L9W3K3 Country: Canada Latitude: 43.9133 Longitude: ­80.1158 Contact Type Technical Contact, Company Coordinator, Public Contact, Person who coordinated the preparation of the Toxics Reduction Plan Name: Brian Greer Position: EHS Manager Telephone: 5192150535 Email: brian.greer@polyone.com Contact Type Certifying Official Name: Darryl Chartrand Position: Senior Air Quality Technologist Telephone: 4164999000 about:/V003/Html http://www.canada.gc.ca/home.html http://www.servicecanada.gc.ca/eng/home.shtml http://www.canada.gc.ca/aboutgov-ausujetgouv/depts/menu-eng.html https://ec.ss.ec.gc.ca/auth/en/Services about:/V003/Logout_Deconnexion http://ec.gc.ca/default.asp? lang=En&n=FD9B0E51-1 https://ec.ss.ec.gc.ca/auth/en/Services General Information Substance List CAS RN Substance Name Releases Releases (Speciated VOCs) Disposals Recycling Unit 103­23­1 Bis(2­ethylhexyl) adipate 0.0000 N/A N/A N/A tonnes 117­81­7 Bis(2­ethylhexyl) phthalate 0.0001 N/A N/A N/A tonnes 85­44­9 Phthalic anhydride N/A N/A N/A N/A tonnes Extension 73642 Fax: 4164994687 Email: darryl.chartrand@ch2m.com Contact Type Highest Ranking Employee Name: Robert Greenop Position: Plant Manager Telephone: 5199385865 Email: robert.greenop@polyone.com Mailing Address: Address Line 1:  City, Province/Territory, Postal Code: None  Country: None Contact Type Person who prepared the report Name: Najat Kamal Position: EHSQ specialist Telephone: 5148089920 Email: najat.kamal@polyone.com Mailing Address: Delivery Mode: GeneralDelivery Address Line 1:  City, Province/Territory, Postal Code: None  Country: None Number of employees: 16 Activities for Which the 20,000­Hour Employee Threshold Does Not Apply: None of the above Activities Relevant to Reporting Dioxins, Furans and Hexacholorobenzene: None of the above Activities Relevant to Reporting of Polycyclic Aromatic Hydrocarbons (PAHs): Wood preservation using creosote: No Is this the first time the facility is reporting to the NPRI (under current or past ownership): Is the facility controlled by another Canadian company or companies: Did the facility report under other environmental regulations or permits: Is the facility required to report one or more NPRI Part 4 substances (Criteria Air Contaminants): Operating Schedule ­ Days of the Week: Mon, Tue, Wed, Thu, Fri Usual Number of Operating Hours per day: 24 Usual Daily Start Time (24h) (hh:mm): 07:00 CAS RN Substance Name Releases Releases (Speciated VOCs) Disposals Recycling Unit Applicable Programs CAS RN Substance Name NPRI ON MOE TRA ON MOE Reg 127/01 First report for  this substance to  the ON MOE TRA 103­23­1 Bis(2­ethylhexyl) adipate Yes Yes Yes 117­81­7 Bis(2­ethylhexyl) phthalate Yes Yes No 85­44­9 Phthalic anhydride Yes Yes No General Information about the Substance ­ Releases and Transfers of the Substance Was the substance released on­site The substance will be reported as the sum of releases to all media (total of 1 tonne or less) 1 tonne or more of a Part 5 Substance (Speciated VOC) was released to air Yes Yes No Yes Yes No General Information about the Substance ­ Disposals and Off­site Transfers for Recycling Was the substance disposed of (on­site or off­ site), or transferred for treatment prior to final disposal Is the facility required to report on disposals of tailings and waste rock for the selected reporting Was the substance transferred off­site for recycling General Information about the Substance ­ Nature of Activities CAS RN Substance Name Manufacture the Substance Process the Substance Otherwise Use of the Substance 103­23­1 Bis(2­ethylhexyl) adipate For sale/distribution As a formulation component As a by­product 117­81­7 Bis(2­ethylhexyl) phthalate For sale/distribution As a formulation component As a by­product 85­44­9 Phthalic anhydride As a by­product As a reactant As a by­product TRA Quantifications CAS RN Substance Name Use, Creation, Contained in Product Quantity Use ranges for public reporting 103­23­1 Bis(2­ethylhexyl) adipate Use 0.000 tonnes Yes 103­23­1 Bis(2­ethylhexyl) adipate Creation 27.159 tonnes Yes 103­23­1 Bis(2­ethylhexyl) adipate Contained in Product 27.159 tonnes Yes 117­81­7 Bis(2­ethylhexyl) phthalate Use 0.000 tonnes Yes 117­81­7 Bis(2­ethylhexyl) phthalate Creation 0.104 tonnes Yes 117­81­7 Bis(2­ethylhexyl) phthalate Contained in Product 0.104 tonnes Yes 85­44­9 Phthalic anhydride Use 4228.7 tonnes Yes 85­44­9 Phthalic anhydride Creation 0.000 tonnes Yes 85­44­9 Phthalic anhydride Contained in Product 4228.7 tonnes Yes TRA Quantifications ­ Others Change in Method of Quantification Reasons for Description of how the change impact tracking and quantification of the substance Description of how an incident(s) affected quantifications Significant Process Change in Method of Quantification Reasons for Description of how the change impact tracking and quantification of the substance Description of how an incident(s) affected quantifications Significant Process Total Quantity Released (All Media) CAS RN Substance Name Category Basis of Estimate Detail Code Quantity 103­23­1 Bis(2­ethylhexyl) adipate Total Quantity Released O ­ Engineering Estimates 0.0000 tonnes 117­81­7 Bis(2­ethylhexyl) phthalate Total Quantity Released O ­ Engineering Estimates 0.0001 tonnes On­site Releases ­ Quarterly Breakdown of Annual Releases CAS RN Substance Name Quarter 1 Quarter 2 Quarter 3 Quarter 4 117­81­7 Bis(2­ethylhexyl) phthalate 25 25 25 25 On­site Releases ­ Reasons for Changes in Quantities Released from Previous Year CAS RN Substance Name Reasons for Changes in Quantities from Previous Year Comments 117­81­7 Bis(2­ethylhexyl) phthalate No significant change (i.e.  Certifying Official (or authorized delegate) Darryl Chartrand Report Submitted by Najat Kamal About us News Contact us Stay connected HEALTH healthycanadians.gc.ca TRAVEL travel.gc.ca SERVICE CANADA servicecanada.gc.ca JOBS jobbank.gc.ca ECONOMY actionplan.gc.ca Canada.gc.ca Terms and Conditions Transparency Version: 3.13.0 I, the Certifying Official or authorized delegate, agree with the statements above and acknowledge that by pressing the "Submit Report(s)" button, I am electronically certifying and submitting the facility report(s) for the identified company to its affiliated programs.

Avient se consacre à exercer son activité avec honnêteté, intégrité, selon les normes éthiques les plus strictes, et conformément à toutes les lois antitrust. Une violation de la loi antitrust peut exposer Avient et vous personnellement à de graves sanctions pénales et civiles. À ne pas faire : Conclure tout accord, entente ou discussion avec tout client concernant la sélection ou la résiliation par Avient d’autres clients ou les conditions auxquelles Avient traite ou pourrait traiter avec tout autre client, y compris les produits à vendre, à qui, à quels prix et dans quels territoires ou marchés les vendre. 11.

Roman, Secretary of State of the Government of Puerto Rico, CERTIFY: That on July 13, 2020, at 08:50 AM, "POLYONE PUERTO RICO, LLC", registry number 365432, performed the following transaction: Name Change Previous Actual POLYONE PUERTO RICO, LLC AVIENT PUERTO RICO, LLC CERTIFICATE OF AMENDMENT Government of Puerto Rico IN WITNESS WHEREOF, the undersigned by virtue of the authority vested by law, hereby issues this certificate and affixes the Great Seal of the Government of Puerto Rico, in the City of San Juan, Puerto Rico, today, July 13, 2020.

AVIENT BELGIUM 2, RUE MELVILLE WILSON 5330 ASSESSE- BELGIUM Bureau Veritas Certification France certify that the Management System of the above organization has been audited and found to be in accordance with the requirements of the management system standard detailed below: Standard ISO 14001 : 2015 Scope of certification DESIGN AND MANUFACTURE OF COLOUR AND ADDITIVE CONCENTRATES, THERMOPLASTIC RESINS AND SPECIALITY COMPOUNDS.

Certificate Number: Certificate expiration date: Effective date: 31-10-2022 30-10-2025 Expiry date of previous cycle: 30-10-2022 31-10-2016 ES133794 Scope of certification: MANUFACTURING OF MASTERBATCHES, ADDITIVES AND COMPOUNDS FOR PIGMENTING THERMOPLASTIC MATERIALS USED IN FOOD INDUSTRY ISO 22000:2018 POLIGONO INDUSTRIAL EZCABARTE, C/H, Nº3 - 31194 - ORICAIN - NAVARRA - ESPAÑA AVIENT ESPAÑA, S.L.

James S T A T E OF O H I O C E R T I F I C A T E Ohio Secretary of State, Frank LaRose 4463782 It is hereby certified that the Secretary of State of Ohio has custody of the business records for and, that said business records show the filing and recording of: AVIENT CORPORATION United States of America State of Ohio Office of the Secretary of State Witness my hand and the seal of the Secretary of State at Columbus, Ohio this 23rd day of April, A.D. 2020. NOW, THEREFORE, BE IT RESOLVED, that, effective as of the time and date that the applicable certificate is accepted for filing by the Ohio Secretary of State (the “Effective Time”), the name of the Company shall be changed from “PolyOne Corporation” to “Avient Corporation.”

TECHNICAL EXPERTISE HELPS ELECTRONIC CONNECTOR COMPANY ENTER NEW MARKET © 2021, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 To learn more about Bergamid™ Nylon Formulations, contact Avient at +1.844.4AVIENT (1.844.428.4368) or visit us at avient.com. THE SOLUTION Because they knew Avient could help, the connector company’s design engineers invited Avient into the development process. Avient’s service and support extended beyond the design phase.