April 13, 2015 Eastern Time on Friday, May 1, 2015. ET, May 1, 2015

April 22, 2015 What: Wells Fargo 2015 Industrial and Construction Conference When: Wednesday, May 6, 2015 – Presentation Time: 2:35 PM

The current and future focus is on continued Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) assessments, reclassifications and communication on the safe use and handling of these substances. To find more details about our certifications, visit our ISO Certifications Library. The certification allows all locations on the certification to maintain a Responsible Care® Certification and ISO:14001 certification.

Brown: Please be advised that the office of the Secretary of State has reviewed your pre- clearance request for the Certificate of Amendment for PolyOne Corporation. If you wish to expedite the amendment certificate the fees are listed. 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.”

Minimum requirements are adopted from the ISO 9001 standard. Avient requires a Certification of Analysis (COA) and supplier specification documents for every shipment of raw material. Avient categorization for a “supplier” FDA Food & Drug Administration IATF International Automotive Task Force Interested Party Term referenced in ISO 9001.

Limited PO Box 2137, Jeddah 22758, Saudi Arabia Has been assessed and found to meet the requirements of ISO 45001:2018 This certificate is valid for the following scope of operations: Production and Supply of Color and Additive Master Batches Authorised by: Stan Wright Director Date of Certificate Issue: 30 December 2021 Certificate Valid Until: 29 December 2024 Recertification audit before 30 November 2024. This certificate is the property of DAS Certification Ltd and remains valid subject to satisfactory annual Surveillance audits. DAS Certification Ltd Certificate Number: DAS 47648113/31/OU Rev: 001 Registration House, 22b Church Street, Rushden, Northamptonshire, NN10 9YT, UK Tel: +44 (0) 1933 381859 Email: enquiries@dascertification.co.uk Web: www.dascertification.co.uk mailto:enquiries@dascertification.co.uk http://www.dascertification.co.uk/

§ 1307) and Trade Facilitation and Enforcement Act of 2015 (TFTEA), the applicable provisions of the Uyghur Forced Labor Prevention Act (UFLPA), the modern slavery and human trafficking provisions of the UK Modern Slavery Act 2015, and the OECD Guidelines for Multinational Enterprises. Have appropriate licenses, registrations and certifications required to conduct business in the locations where you operate

§ 1307) and Trade Facilitation and Enforcement Act of 2015 (TFTEA), the applicable provisions of the Uyghur Forced Labor Prevention Act (UFLPA), the modern slavery and human trafficking provisions of the UK Modern Slavery Act 2015, and the OECD Guidelines for Multinational Enterprises. Have appropriate licenses, registrations and certifications required to conduct business in the locations where you operate

Franken Managing Director Registration number 1682419.2 Start date certificate 0610312025 Certificate valid until 2810212028 Date of first certificate 2810212019 Previous certificate valid until 2810212025 Date audit 0411212024 – 1211212024 Certificate for the environmental management system according to NENNENNENNEN1111ENENENEN1111ISOISOISOISO 14141414001:001:001:001:2015201520152015 including the current version of the underlying SCCM schemaincluding the current version of the underlying SCCM schemaincluding the current version of the underlying SCCM schemaincluding the current version of the underlying SCCM schema The certification body TÜV NORD Nederland hereby confirms that the certification 1682419.20610312025 took place in accordance with its certification regulations for the organisations 28102120282810212019 FiberFiberFiberFiber1111Line International B.V.Line International B.V.Line International B.V.Line International B.V. The certification is subject to annual evaluation by TÜV NORD Nederland.

May 7, 2015 What: Goldman Sachs 2015 Basic Materials Conference When: Tuesday, May 19, 2015 – Presentation Time: 1:10 PM