While traveling on company business, you are expected to: 1. Follow these two simple rules: 1. Ethics Hotline: https://www.Avient.com/company/policies-and-governance/ethics-hotline Telephone Ethics Hotline Number: 1-877-228-5410 https://www.Avient.com/company/policies-and-governance/ethics-hotline North America Global Headquarters Avon Lake, United States 33587 Walker Road Avon Lake, OH, United States 44012 Toll Free: +1 866 765 9663 Phone: +1 440 930 1000 Fax: +440 930 3064 Asia Pacific Regional Headquarters Shanghai, China 2F, Block C 200 Jinsu Road Pudong, 201206 Shanghai, China Telephone: +86 (0) 21 6028 4888 Fax: +86 (0) 21 6028 4999 South America Sao Paulo, Brazil Av.

1 美国反垄断法律概览 美国反垄断法律具有广泛的涵盖范围，而且美国执 法机关将毫不容情对海外反竞争活动采取措施。 1. 2 需关注的潜在反垄断方面 1.

ECert.pdf Page 1 of 2 Validity of this certificate is based on the successful completion of the periodic surveillance audits of the management system defined by the above scope and is contingent upon prompt,written notification to ABS Quality Evaluations, Inc. of significant changes to the management system or components thereof.

Page 102 Critical Imperatives – Medium to Long Term • Continue cultural and paradigm shift from commodity compounder to collaborative formulator as One PolyOne • Accelerate innovation and leverage megatrends to improve our mix of business with higher-margin improve our mix of business with higher-margin specialty products • Increase specialty contribution and advance globalization via acquisitions • Drive relentless execution and creative innovation as key competitive differentiators Page 103 2011 Proforma ColorMatrix 2015 Target “Where we are” “Where we expect to be” 1) Operating Income % Specialty 8.9% PP&S 7.2% 12 – 16% 9 – 12% Elevating our Expectations and Yours PP&S 7.2% Distribution 5.6% 2) Specialty Platform % of Operating Income 50% 3) ROIC* (after-tax) 10% 4) Adjusted Annual EPS Growth 3 yr CAGR = 71% 9 – 12% 6 – 7.5% 65 – 75% 15% Double Digit Expansion *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period Page 104

PROFILE/SHEET EXTRUDER R A I L S A N D K I C K P L A T E S • Convert existing PVC profile and sheet rails and kick plates to polyolefin resin to meet Class A fire safety (ASTM E84) • Provide a system that meets healthy building certifications and approvals • Utilize a more sustainable flame retardant technology, removing brominated or halogenated flame retardants from the environment • Achieve non-compromising performance in aesthetics, impact, dimensional stability, CLTE, and E84 testing • Provided broad flame retardant platform, backed by extensive application and industry expertise, to meet global flammability standards • Has largest UL94 recognized Prospector membership with HB, V-0, V-1, V-2 and 5VA/5VB ratings, and broad glow wire performance products • Included in-house UL certified labs and manufacturing locations to perform UL94 material sampling and testing • Supported application development to meet fire safety standards, address current or emerging healthy building codes, smart home requirements, and LEED credits • Offered custom formulations in small lot quantities Cesa™ Flam Non-Halogen Flame Retardants KEY REQUIREMENTS WHY AVIENT?

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https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/stat-tech-static-dissipative-electrically-conductive-formulations Slide 1: Semiconductor packaging OEM

ECert.QECertificate Page 1 of 2 Validity of this certificate is based on the successful completion of the periodic surveillance audits of the management system defined by the above scope and is contingent upon prompt,written notification to ABS Quality Evaluations, Inc. of significant changes to the management system or components thereof.

1 (3) Pending matter(s) The register indicates pending matter(s) regarding a change to the registered information at the time this certificate was created. 2 (3) Registration number: 516411-5031 Business name: Avient S.à r.l., Sweden Filial Address: Drottninggatan 56 411 07 GÖTEBORG County and municipality: Västra Götaland, Göteborg Note: MANAGING DIRECTOR 630516 Palm, Christoph, Gruss Strooss 35, L-9991 WEISWAMPACH, LUXEMBURG AUDITORS 556053-5873 Ernst & Young Aktiebolag, Box 7850, 103 99 STOCKHOLM Represented by: 850807-5135 PRINCIPALLY RESPONSIBLE AUDITOR 850807-5135 Edman, Mikael Thomas Gunnar, c/o Ernst & Young AB, 401 82 GÖTEBORG SIGNATORY POWER Signatory power alone by Palm, Christoph FINANCIAL YEAR Registered financial year: 0101 - 1231 DATE OF REGISTRATION OF CURRENT AND PREVIOUS BUSINESS NAMES 2021-11-29 Avient S.à r.l., Sweden Filial 2018-08-28 PolyOne S.à.r.l., Sweden Filial INFORMATION ABOUT THE FOREIGN COMPANY B226205 Avient S.á.r.l. 19, Route de Bastogne L-9638 Pommerloch LUXEMBURG Registered office of the foreign company: Pommerloch Name of the register in which the foreign company is registered: 3 (3) RCS, Registre de Commerce, Luxembourg Business Register LUXEMBURG Foreign company's financial year: 0101 - 1231 The above information is an extract from the Trade and Industry Register Bolagsverket, the Swedish Companies Registration Office.

One caveat: Typical TPE shrinkage is around 2% while that of substrate materials is closer to 1%. When looking to incorporate sustainable content into your TPE, the raw material cost may be more expensive than traditional materials for three reasons 1) supply chain maturity, 2) high demand, low supply, 3) location of source and supplier. http://www.art.canaco.org https://www.avient.com/sites/default/files/2020-11/gls-acqua-plose-case-study.pdf 1http://store.elsevier.com/Handbook-of-Polymer-Applications-in-Medicine- and-Medical-Devices/isbn-9780323221696/ Tear Resistance In Handbook of Polymer Applications in Medicine and Medical Devices,1 Laurence W.