Handelsregisteramt des Kantons Basel-Landschaft BASEL LAN DSCHAFT $t Firmennummer cHE-480.567.505 Rechtsnatur Aktiengesellschaft Eintragung 09.09.2019 Löschung U be rtra g CH-280.3.023.7 7 7 -6 von: auf: 1 llillllll llll ll illllll lll A e E n'rasunsen Ei Lö Firma Rel Sitz 1 I 7 7 7 7 Avient Colorants Switzerland AG (Avient Colorants Switzerland Ltd) 1 Muttenz Ei Lö Aktienkapital (CHF) Liberierung (CHF) Aktien-Stückelung Ei Lö Domiziladresse 1 100'000.00 100'000.00 100 vinkulierte Namenaktien zu CHF 1'000.00 1 Rothausstrasse 61 4132 Muttenz Ei Lö Zweck Ei Lö weitere Adressen 1 Die Gesellschaft bezweckt den Erwerb, die Ver"waltung und Veräusserung von Beteiligungen an Unternehmen, die auf dem Gebiet der Chemie und verwandten Gebieten tätig sind, insbesondere im Bereich Masterbatches und Kunststoffe. LANDSCHAFT I cHE480.567.505 Avient Colorants Switzerland AG Muttenz 2 Alle Eintragungen Ei Ae Lö Personalangaben Funktion Zeichnungsart 5 5 3 3 4 b 7 7 7m 4m 7m 6m horigef, in+irstetden Mer*leihNsrberfdeutseherStaatsangehöriger, in Kronberg (DE) rStaatsangehd'riger-in Cuxen@+U) James, Robert Kenneth, amerikanischer Staatsangehöriger, in Ohio (US) Garratt, Michael Alexander, amerikanischer Staatsangehöriger, in Luxemburg (LU) Tamura, Mauricio Massanobu, portugiesischer Staatsangehöriger, in Birsfelden Merklein, Norbert, deutscher Staatsangehöriger, in Rheinfelden l:M.des Venffattungsrates Mitglied des Verwaltungsrates lAltgtietres Veftvattungsrates l+tgl+e#es Venffattungsrates Mitglied des Verwaltungsrates Mitglied des Verwaltungsrates Präsident des Verwaltungsrates Mitglied des Verwaltungsrates @ Kollektivunterschrift zu zweien ffiien Ehz ehrntersehrift Einzelunterschrift Einzelunterschrift Einzelunterschrift Einzelunterschrift Arlesheim, 02.12.2020 11:46 BM Dieser Auszug aus dem kantonalen Handelsregister hat ohne die nebenstehende Originalbeglaubigung keine Gültigkeit.

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.

Página [1] de [3] CEDULA DE IDENTIFICACION FISCAL PMS190904JZ1 Registro Federal de Contribuyentes AVIENT COLORANT SOLUTIONS MX Nombre, denominación o razón social idCIF: 19090104984 VALIDA TU INFORMACIÓN FISCAL CONSTANCIA DE SITUACIÓN FISCAL Lugar y Fecha de Emisión ECATEPEC DE MORELOS , MEXICO A 18 DE MAYO DE 2021 PMS190904JZ1 Datos de Identificación del Contribuyente: RFC: PMS190904JZ1 Denominación/Razón Social: AVIENT COLORANT SOLUTIONS MX Régimen Capital: SOCIEDAD DE RESPONSABILIDAD LIMITADA DE CAPITAL VARIABLE Nombre Comercial: AVIENT COLORANT SOLUTIONS MX Fecha inicio de operaciones: 04 DE SEPTIEMBRE DE 2019 Estatus en el padrón: ACTIVO Fecha de último cambio de estado: 04 DE SEPTIEMBRE DE 2019 Datos de Ubicación: Código Postal:55540 Tipo de Vialidad: CALLE Nombre de Vialidad: PLASTICOS Número Exterior: 28 Número Interior:B-102 Nombre de la Colonia: SANTA CLARA COATITLA Nombre de la Localidad: Nombre del Municipio o Demarcación Territorial: ECATEPEC DE MORELOS Nombre de la Entidad Federativa: MEXICO Entre Calle: CANAL DE RISCO Y Calle: AVENIDA VIA MORELOS Correo Electrónico: caio.zuccarelli@clariant.com Tel.

Este é para certificar que o Sistema de Gestão da Qualidade da: Avient Itupeva - Brasil AVIENT BRASIL LTDA Av.

No. 0562.01) 11/30/2023 Page 1 of 1 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 AVIENT CORPORATION 733 East Water Street North Baltimore, OH 45872 Claire Holman Phone: (419) 257-1327 MECHANICAL Valid To: October 31, 2025 Certificate Number: 0562.01 In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to this laboratory to perform the following automotive plastics tests: Test Method: Test Name: ASTM D412 Tensile ASTM D523 Specular Gloss ASTM D618 (A) Conditioning of Plastics ASTM D624 (Die C) Tear Strength ASTM D638 Tensile Properties ASTM D792 (A) Density and Specific Gravity by Displacement ASTM D1004 Initial Tear Resistance ASTM D1203 (A) Volatile Loss ASTM D1895 (A) Apparent Density, Bulk Factor, Pourability ASTM D1921 Particle Size (Sieve Analysis) ASTM D2240 Durometer Hardness (Shore A and D) ASTM E1331 Color by Spectrophotometry Using Hemispherical Geometry FMVSS 571.302 Flammability FORD BN-102-01 (A) Low Temperature Flexibility FORD BO-131-03 Interior Odor ISO 3795 Determination of Burning Behavior of Interior Materials SAE J323 (A) Cold Cracking (Mandrel Bend) SAE J1351 Hot Odor for Insulation Materials SAE J1545 Instrumental Color Difference Measurement DOC-058151 Angle of Repose 1 Laboratory Developed Method For the tests to which this accreditation applies, please refer to the laboratory’s Mechanical Scope of Accreditation. Accredited Laboratory A2LA has accredited AVIENT CORPORATION North Baltimore, 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.

e-Certificate of registration Swedish Companies Registration Office LIMITED COMPANY D1a- 6064988 Registration number Date of registration of the company Document created on Date of registration of current name Page 556393-1020 1990-04-10 2020-11-30 14:53 2020-11-30 1 (2) Registration number: 556393-1020 Business name: Avient Colorants Sweden AB Address: Box 9053 200 39 MALMÖ Registered office: Malmö Note: The company is registered as a private limited company. ARTICLES OF ASSOCIATION Date of the latest change: 2020-11-02 FINANCIAL YEAR Registered financial year: 0101 - 1231 Latest annual report submitted covers financial period 20190101-20191231 DATE OF REGISTRATION OF CURRENT AND PREVIOUS BUSINESS NAMES 2020-11-30 Avient Colorants Sweden AB 2016-01-19 Clariant Plastics & Coatings (Nordic) AB 2000-08-23 Clariant Masterbatches Norden Aktiebolag 1990-05-22 Drycolor Aktiebolag 1990-04-10 Nya Drycolor Aktiebolag **** The above information is an extract from the Trade and Industry Register Bolagsverket, the Swedish Companies Registration Office **** Bolagsverket 851 81 Sundsvall 0771-670 670 bolagsverket@bolagsverket.se www.bolagsverket.se 2020-11-30T14:53:51+0100 Sweden Bolagsverket Bolagsverket intygar äktheten och integriteten för detta dokument

SER_Report_2021 ACTIVITY GROUP PERFORMANCE Trading, wholesale, distribution, rental & leasing Your company is amongst 19% of companies that reached Leadership level in your Activity Group A sample of A-list companies from your Activity Group: Grupo Logista Hilton Food Group plc Lerøy Seafood Group Samsung C&T Avient received a A- which is in the Leadership band. Leadership (A/A-): Implementing current best practices Management (B/B-): Taking coordinated action on supplier engagement Awareness (C/C-): Knowledge of impacts of supplier engagement Disclosure (D/D-): Transparent about supplier engagement UNDERSTANDING YOUR SCORE REPORT Avient Region North America Country United States of America Questionnaire Chemicals Activity Group Trading, wholesale, distribution, rental & leasing CDP evaluates organizations engagement with their suppliers on climate change.

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.

CC_Score_Report_2021 ACTIVITY GROUP PERFORMANCE Trading, wholesale, distribution, rental & leasing Your company is amongst 49% of companies that reached Management level in your Activity Group A sample of A-list companies from your Activity Group: Grupo Logista Hyundai Glovis Co Ltd Avient received a B which is in the Management band. Leadership (A/A-): Implementing current best practices Management (B/B-): Taking coordinated action on climate issues Awareness (C/C-): Knowledge of impacts on, and of, climate issues Disclosure (D/D-): Transparent about climate issues UNDERSTANDING YOUR SCORE REPORT Avient Region North America Country United States of America Questionnaire Chemicals Activity Group Trading, wholesale, distribution, rental & leasing The CDP Score Report allows companies to understand their score and indicate which categories require attention to reach higher scoring levels.

A sample of A-list companies from your Activity Group: AmorePacific Corporation Beiersdorf AG Borregaard ASA CDP SCORE REPORT - CLIMATE CHANGE 2023 Avient received an A- which is in the Leadership band. Leadership (A/A-): Implementing current best practices Management (B/B-): Taking coordinated action on climate issues Awareness (C/C-): Knowledge of impacts on, and of, climate issues Disclosure (D/D-): Transparent about climate issues UNDERSTANDING YOUR SCORE REPORT ACTIVITY GROUP PERFORMANCE Chemicals A- Your CDP score Average performance B C C Chemicals North America Global Average *Please note that the peer group average scores are compiled with only investor- requested company scores Avient Region North America Country/Area United States of America Questionnaire Chemicals Activity Group Chemicals The CDP Score Report allows companies to understand their score and indicate which categories require attention to reach higher scoring levels.