LoC No: 798019/2023 Page 1 of 1 Letter of Conformity Good Manufacturing Practices — Guidelines The Letter of Conformity is granted to Polyone Polymers India Private Limited Plot No. F -27, MIDC, Ranjangaon, Taluka – Shirur, Pune Maharashtra 412220 India Hold this Opinion Statement No. 798019/2023 The Organization has demonstrated that they have followed the guidelines provided for Good Manufacturing Practices as per the ICHQ7 guidelines in their organization for the following Business activity: Research and Development, Manufacture of Color additives, Concentrates and Specialty Formulations for intended use in pharma and other industries Theuns Kotze, Managing Director – IMETA Assurance Last Audit Date: 31.10.2023 BSI Group India Private Limited T: +91-4762-9000 (CIN U74899DL1999PTC101381 info.in@bsigroup.com The Mira Corporate Suites bsigroup.com/en-IN Plot 1&2, Ishwar Nagar, Mathura Road New Delhi-110065, India

Clariant Chemicals (India) Limited's at (440) 930-1000 or by contacting Investor Contacts

Clariant Chemicals (India) Limited's at (440)-930-1000 or by contacting Investor Contacts

Kalol, India 1. Pune, India 9. Rania, India 46.

Kalol, India 1. Pune, India 9. Rania, India 46.

That’s what great companies do. Bottom) Thanks to our team in Pune, India, 225 trees beautified the landscape and improved sustainability in the Ranjangaon Industrial Area near our facility. That’s what world-class sustainable companies do.

Investor Relations Contact: Isaac D. Media Relations Contacts Company Officers

Internal : Independent Opinion Statement The opinion statement is Granted to Polyone Polymers India Private Limited Plot No. Pune, Maharashtra - 412 220 India Hold this Opinion Statement No. 770146 / 2022 The Organization has demonstrated that they have followed the Good Manufacturing Practices with reference to IPEC -PQG-GMP requirements applicable to Excipients used in pharma products for the following Business activity: “Research and Development, Manufacture of Color additives, Concentrates and Specialty Formulations for intended use in pharma and other industries”. For and on behalf of BSI Theuns Kotze, Managing Director – IMETA Assurance Last Assessment Date: 2022/06/25 Latest issue Date: 2022/08/24 Expiry Date: 2023/08/17 BSI Group India Private Limited T: +91 11 2692 9000 (CIN U74899DL1999PTC101381 info.in@bsigroup.com The Mira Corporate Suites bsigroup.com/en-IN Plot 1&2, Ishwar Nagar, Mathura Road New Delhi-110065, India Good Manufacturing Practices mailto:info.in@bsigroup.com

A full copy of Avient’s Code of Conduct is available in over 20 languages and can be found here: Avient’s Policy on Human Rights can be found here: https://www.avient.com/ https://www.avient.com/company/policies-and-governance-0/code-conduct https://www.avient.com/company/policies-and-governance-0/avients-human-rights-policy Page 2 of 3 Training To mitigate against the risk of non-compliance with our policy, Avient requires all associates to complete mandatory Code of Conduct training. The hotline is operated by an external professional service company and ensures anonymity. Our supply base currently includes 63 suppliers: 67% located in the UK, 19% in the EU and the remaining 14% split between China, USA and India.