26/11/2021 4Extract from Page 1from Company Name Crossroads Bank of Enterprises: 0314.595.348 FULL EXTRACT OF THE DETAILS OF A REGISTERED ENTITY (LEGAL PERSON) Name French Avient S.à r.l., Belgium Branch 08/11/2021 Registered seat Route de Bastogne 19 09/08/2018 9638 Pommerloch Luxembourg Website www.polyone.com Declarative 09/08/2018 Legal Situation Status Start Date End Date Normal situation Active 09/08/2018 Legal form Start Date End Date Foreign entity 09/08/2018 VAT activities Vesaliusstraat 31 - 1000 Brussels E: ol.brussel@xerius.be T: 02 609 62 30 26/11/2021 4Extract from Page 2from Functions Last Name, first Name Registered entity Start Date End DateReason for termination Representative (branch) Roels Jean-Marie 31/08/2018 Last Name, first Name Registered entity Start Date End DateReason for terminationEntrepreneurial skills - Ambulant commerce - Fairground operator 31/08/2018Non SME dispensation (Exemption) Characteristic Phase Duration Start Date End DateReason for termination Employer National Social Security Office Characteristic/authorisation 01/11/2018undetermined Subject to VAT Characteristic/authorisation 31/08/2018undetermined Enterprise subject to registration Characteristic/authorisation 01/11/2018undetermined General assembly End Date Financial Year Start Date Exceptional Year Start Date End DateEnd Date Exceptional Year Financial Details Share capital (Capital Stock) Currency Duration of the entity 12,000.00 EUR June 31/12 09/08/2018 Use Bank account number Start Date End DateBank account number Bank Accounts BIC For all purposes 685 8477013 57 31/08/2018BE09685847701357BOFABE3X External Identifiers NSSO number 143954886 Trade register number 19 0097620 There is no data available for the following sections: Authorisations, Working partners :, Ex-officio striking off, Links between registered entities List of branches Branch - Center of operations Rue Melville Wilson 2 09/08/2018 België 26/11/2021 4Extract from Page 3from Establishment unit number 2.278.618.585 Trade name French Avient S.à r.l., Belgium Branch 08/11/2021 Rue Melville Wilson 2 31/08/2018 België Website www.polyone.com Declarative 31/08/2018 31/08/2018Start date establishment unit End date establishment unit Start date link between entities End date link between entities 31/08/2018 Activities Wholesale trade of industrial chemicals: aniline, printing ink, essential oils, industrial gases, chemical glues, dyes, synthetic resin, methanol, paraffin, etc. Main activity 31/08/201820084675101 Registered entity Legal Situation Normal situation 26/11/2021 4Extract from Page 4from Document issued in accordance with Article III.34, §1 of the Code of Economic Law The legal terms were translated literally. It is therefore necessary to refer to the Belgian legislation in force in order to determine their scope. 26/11/2021 2Extract from Page 1from EXTRACT OF THE ESTABLISHMENT UNIT DETAILS Crossroads Bank of Enterprises: 0314.595.348 Establishment unit number 2.278.618.585 Trade name French Avient S.à r.l., Belgium Branch 08/11/2021 Rue Melville Wilson 2 31/08/2018 Belgium Website www.polyone.com Declarative 31/08/2018 31/08/2018Start date establishment unit End date establishment unit Start date link between entities End date link between entities 31/08/2018 Registered entity Legal Situation Normal situation Vesaliusstraat 31 - 1000 Brussels E: ol.brussel@xerius.be T: 02 609 62 30 26/11/2021 2Extract from Page 2from Activities Wholesale trade of industrial chemicals: aniline, printing ink, essential oils, industrial gases, chemical glues, dyes, synthetic resin, methanol, paraffin, etc.

Eastern Time on Thursday, May 11, 2023. Participants should also give themselves plenty of time to log in prior to the start of the Annual Meeting. B-13 11.

It also provides context on development timelines, some industries have tight timelines based on annual launch windows while others have a long specification process.

Changzhou, China 11. Alicante, Spain 11. Alicante, Spain 11.

The data for the facility(ies) that I represent are hereby submitted to the programs identified below using the Single Window Reporting Application.

For and on behalf of BSI: Carlos Pitanga, Chief Operating Officer Assurance – Americas Certification Date: 2018-07-11 Latest Issue: 2018-07-11 Expiry Date: 2021-07-10 BSI Certificate Number: 85585 IATF Number: 0315491 Page: 1 of 2 This certificate remains the property of BSI and shall be returned immediately upon request. CertificateNumber=TS+85585&ReIssueDate=11%2f07%2f2018&Template=inc Polyone de Mexico Manufacturing S. de R.L. de C.V. CertificateNumber=TS+85585&ReIssueDate=11%2f07%2f2018&Template=inc

TÍTULO DO ESTABELECIMENTO (NOME DE FANTASIA) ******** PORTE DEMAIS CÓDIGO E DESCRIÇÃO DA ATIVIDADE ECONÔMICA PRINCIPAL 20.99-1-99 - Fabricação de outros produtos químicos não especificados anteriormente CÓDIGO E DESCRIÇÃO DAS ATIVIDADES ECONÔMICAS SECUNDÁRIAS 46.79-6-01 - Comércio atacadista de tintas, vernizes e similares 46.84-2-99 - Comércio atacadista de outros produtos químicos e petroquímicos não especificados anteriormente 46.63-0-00 - Comércio atacadista de Máquinas e equipamentos para uso industrial; partes e peças 28.66-6-00 - Fabricação de máquinas e equipamentos para a indústria do plástico, peças e acessórios 82.11-3-00 - Serviços combinados de escritório e apoio administrativo 64.63-8-00 - Outras sociedades de participação, exceto holdings 71.20-1-00 - Testes e análises técnicas 22.29-3-02 - Fabricação de artefatos de material plástico para usos industriais CÓDIGO E DESCRIÇÃO DA NATUREZA JURÍDICA 206-2 - Sociedade Empresária Limitada LOGRADOURO AV FRANCISCO NAKASATO NÚMERO 1700 COMPLEMENTO ******** CEP 13.295-000 BAIRRO/DISTRITO SAO ROQUE DA CHAVE MUNICÍPIO ITUPEVA UF SP ENDEREÇO ELETRÔNICO FABIANA.SILVA@POLYONE.COM TELEFONE (11) 4593-9279/ (11) 4593-9252 ENTE FEDERATIVO RESPONSÁVEL (EFR) ***** SITUAÇÃO CADASTRAL ATIVA DATA DA SITUAÇÃO CADASTRAL 08/04/2005 MOTIVO DE SITUAÇÃO CADASTRAL SITUAÇÃO ESPECIAL ******** DATA DA SITUAÇÃO ESPECIAL ******** Aprovado pela Instrução Normativa RFB nº 1.863, de 27 de dezembro de 2018. Emitido no dia 02/06/2021 às 11:50:19 (data e hora de Brasília).

Date Of Certification: 11 December 2024 Date Of Expiration: 10 December 2027 IATF Certificate N°: 0558656 Bureau Veritas Certification Certificate No: FR094003 - IATF Revision: 1 For Bureau Veritas Certification Holding, Tour ALTO, 4 place des saisons, 92400 COURBEVOIE – France (The official document is in English. Any translations of this document shall be used for reference only.) 1/2 Certificate of Approval AWARDED TO PolyOne France Tossiat Route de la vavrette, 01250, Tossiat - France IATF USI: LWZS4P Bureau Veritas Certification certify that the Quality Management System of the above organisation has been audited and found to be in accordance with the requirements of IATF 16949 - FIRST EDITION and the applicable customer specific requirements SCOPE Design and manufacturing PERMITTED EXCLUSION(S) None PRODUCT(S) DELIVERED colour with additive concentrates for thermoplastic resins and speciality compounds obtained by mixing and extrusion https://e-cer.bureauveritas.com/68LJQE0ZV0CO6I7YW0YSXOUMV9WWROQPHPI2AOHRRLFFVRAVTFVZGXKWIE3TOWLTTKEWCPQB9UNAPXHH6T0HXOMUEDVYPRPJLEXBBTKQYPBRICYOKY143TECQ5UMHGA3JX Date Of Certification: 11 December 2024 Date Of Expiration: 10 December 2027 IATF Certificate N°: 0558656 Bureau Veritas Certification Certificate No: FR094003 - IATF Revision: 1 For Bureau Veritas Certification Holding, Tour ALTO, 4 place des saisons, 92400 COURBEVOIE – France (The official document is in English. Any translations of this document shall be used for reference only.) 2/2 Appendix to the Certificate of Approval AWARDED TO PolyOne France Tossiat Route de la vavrette, 01250, Tossiat - France IATF USI: LWZS4P REMOTE SUPPORT FUNCTION(S) NAME ADDRESS SCOPE AVIENT LUXEMBOURG 19, Route de bastogne, 9638, Pommerloch - Luxembourg IATF USI: GAZS9A Purchasing, Logistics, Supplier Management PolyOne Europe Logistics 7 Rue bleriot, 4460, Grace-Hollogne - Belgium IATF USI: P4WA4Y Warehousing Polyone Poland Ul. wschdnia 6, 99-300, Kutno - Poland IATF USI: C4W5ZL Logistics https://e-cer.bureauveritas.com/68LJQE0ZV0CO6I7YW0YSXOUMV9WWROQPHPI2AOHRRLFFVRAVTFVZGXKWIE3TOWLTTKEWCPQB9UNAPXHH6T0HXOMUEDVYPRPJLEXBBTKQYPBRICYOKY143TECQ5UMHGA3JX 2024-12-13T10:07:11+0100 Authenticity and Integrity

Directors may at any time review a log of all correspondence we receive that is addressed to members of the Board and request copies of any such correspondence. Outstanding Equity Att wards at 2016 Fiscal Year-End Exercise Price ((e)) Expiration Date ((f))ff Market Value of Shares or Units of Stock That Have Not Vested ((h)) Equity Incentivtt e Plan Awards: Market or Payout Value of Unearned Shares, Units ot r Othertt Rights ttt hatt t Have Not Vested ((jj)) - - 8,510 (1) 272,660 - - - 24,671 (2) 790,459 - - - 35,272 (3) 1,130,115 - - - - 51,756 (6) 1,658,262 - - - 51,756 (6) 1,658,262 30,500 (8) 14.81 2/16/2021 - - 48,800 (9) 14.61 2/14/2022 - - 30,700 (10) 23.08 2//15//2023 - - 13,667 (11) 6,833 (11) 35.07 2//11//2024 - - 66,700 (12) 38.27 2//4//2025 - - 105,200 (13) 24.98 2/10/2026 - - - 7,266 (1) 232,803 - - - 6,892 (2) 220,820 - 8,426 (3) 269,969 - 11,600 (11) 5,800 (11) 35.07 2/11/2024 - 18,700 (12) 38.27 2//4//2025 - - 25,150 (13) 24.98 2//10//2026 - - - - 4,360 (1) 139,694 - - - 25,935 (4) 830,957 - - - 4,114 (2) 131,813 - - - 5,026 (3) 161,033 - - - - 25,935 (7) 830,957 13,700 (10) 23.08 2/15/2023 - - 6,934 (11) 3,466 (11) 35.07 2/11/2024 - - 11,200 (12) 38.27 2/4/2025 - - 15,000 (13) 24.98 2//10//2026 - - - - 3,222 (1) 103,233 - - - 2,593 (5) 83,080 - - - 3,395 (2) 108,776 - - - 4,316 (3) 138,285 5,200 (11) 2,600 (11) 35.07 2/11/2024 - - 9,200 (12) 38.27 2/4/2025 - - 12,900 (13) 24.98 2//10//2026 - - - - 3,634 (1) 116,433 - 3,500 (2) 112,140 - 4,569 (3) 146,391 - 23,300 (9) 14.61 2//14//2022 - - 13,700 (10) 23.08 2/15/2023 - 5,800 (11) 2,900 (11) 35.07 2/11/2024 - - 9,300 (12) 38.27 2/4/2025 - 13,550 (13) 24.98 2//10//2026 - - 37,760 (1) 1,209,830 - 137,000 (10) 23.08 2//15//2023 - 60,667 (11) 30,333 (11) 35.07 2/11/2024 - S.D. Richardson the stock awards include RSUs that were granted on November 11, 2013 and settled on November 11, 2016.

A NR 989/2002 - ZMIENIONO §§ 4; 7 UST. 1, 2, 5; 9 UST. 2, 3, 4; 11 UST. 2, 5; 11A UST. 4; 12 UST. 2; 13 UST. 2; 17 UST. 2 UMOWY SPÓŁKI; 2 20.01.2010 R , REP. A NR 510/2010 , NOTARIUSZ WALDEMAR JEZIORSKI , KANCELARIA NOTARIALNA W ZGIERZU - ZMIANA § 2 I § 4 UMOWY . 3 AKT NOTARIALNY Z DNIA 06.09.2011 R., REP A NR 2394/2011 NOTARIUSZ ANNA KOPCZYŃSKA KANCELARIA NOTARIALNA W ŁODZI - ZMIANA §§ 4, 7, 8, 9, 11 UST.2 PKT G; NOWY § 11 UST.2 PKT H; ZMIANA NUMERACJI PKT-ÓW: H,I,J,K,L W § 11 UST.2 NA PKT:I,J,K,L,M; ZMIANA § 11 UST.2 I 5, ZMIANA NR §11A NA § 12 I ODPOWIEDNIA ZMINA NUMERACJI KOLEJNYCH PARAGRAFÓW; ZMIANA §§: 12, 13 UST.1,2,4,5; USUNIĘCIE § 13 UST.6; ZMIANA § 14 UST.2 I § 15; USUNIĘCIE § 16 UST.2, § 18 UST.1 UMOWY SPÓŁKI 4 11.06.2012R. A NR 18738/2012 - ZMIENIONO §4, DODANO §3 UST. 3 ORAZ ZMIENIONO §11 UST. 5 UMOWY SPÓŁKI. 5 AKT NOTARIALNY Z DNIA 11.06.2012 R., REP.