Certificate of Registration 9001:2015 MSP 9001:2015–MSP-ANAB-US (2.0) Page 1 of 2 Certificate of Registration of Quality Management System to ISO 9001:2015 The National Standards Authority of Ireland certifies that: Colorant Chromatics Ab Kroklundsvagen 346 AX-22 320 Odkarby Aland Finland has been assessed and deemed to comply with the requirements of the above standard in respect of the scope of operations given below: The Design, Manufacture and Sales of Fluoropolymer Color Concentrates and Compounds Additional sites covered under this multi-site certification are listed on the Annex (File No. 19.2540/C) Approved by: Geraldine LarkinChief Executive Officer Approved by: Lisa Greenleaf Operations Manager Registration Number: 19.2540/C Certification Granted: May 15, 1997 Effective Date: Oct 20, 2018 Expiry Date: Oct 19, 2021 National Standards Authority of Ireland, 20 Trafalgar Square, Nashua, New Hampshire, NH 03063, USA T +1 603 882 4412 9001:2015–MSP-ANAB-US (2.0) Page 2 of 2 Annex to Certificate Number: 19.2540/C Scope of Registration: The Design, Manufacture and Sales of Fluoropolymer Color Concentrates and Compounds Activity Location Central Management Group, Design, Manufacture Colorant Chromatics Kroklundsvagen 346 AX-22 320 Odkarby Aland Finland File No.: 19.2540/C Headquarters, Sales, Distribution Colorant Chromatics Europe B.V.

Remote Support Locations included in the certification are as follows: Site Name Site Address RSL Activities Certification Body PolyOne Management (Shanghai) Co., Ltd. 2nd Floor, Building C, No.200, Jinsu Road, Pudong, Shanghai, P.R.

HOW IT WORKS Excelite additives typically contain 70%wt of active chemical foaming agent (CFA), dispersed in a liquid carrier, thus promoting greater product efficiency. The combination of carrier selection and high active loading permits targeting of greater density reduction.

Curative Dispersions Zinc Oxide Aquamix 132 60 High surface area zinc activator for use in most cure packages. Zinc Oxide Aquamix 142 50 Standard zinc activator for use in most cure packages. Zinc Oxide Aquamix 142 50 Standard zinc activator for use in most cure packages.

Regularly report the Committee’s activities and any recommendations to the Board in such manner and at such times as the Committee or the Board deems appropriate Independence Assessment of Outside Advisers • The Committee may select a compensation consultant, legal counsel or other adviser to the Committee or receive advice from a compensation consultant, legal counsel or other adviser (other than in-house legal counsel or any compensation consultant, legal counsel or other adviser whose role is limited to the following activities for which no disclosure would be required under Item 407(e)(3)(iii) of Regulation S-K: consulting on any broad-based plan that does not discriminate in scope, terms, or operation, in favor of executive officers or directors of the Company, and that is available generally to all salaried employees; or providing information that either is not customized for a particular company or that is customized based on parameters that are not developed by the compensation consultant, and about which the compensation consultant does not provide advice) only after taking into consideration all factors relevant to that person’s independence from management, including the following: 5 • the provision of other services to the Company by the employer of the compensation consultant, legal counsel or other adviser; • the amount of fees received from the Company by the employer of the compensation consultant, legal counsel or other adviser, as a percentage of the total revenue of the employer of the compensation consultant, legal counsel or other adviser; • the policies and procedures of the employer of the compensation consultant, legal counsel or other adviser that are designed to prevent conflicts of interest; • any business or personal relationship of the compensation consultant, legal counsel or other adviser with a member of the Committee; • any stock of the Company owned by the compensation consultant, legal counsel or other adviser; and • any business or personal relationship of the compensation consultant, legal counsel, other adviser or the employer of the adviser with an executive officer of the Company

Regularly report the Committee’s activities and any recommendations to the Board in such manner and at such times as the Committee or the Board deems appropriate. • Conduct an annual evaluation of the Committee’s performance. The Committee is not required to assess the independence of any in-house legal counsel or compensation consultant, legal counsel, or other adviser whose role is limited to the 5 following activities for which no disclosure would be required under Item 407(e)(3)(iii) of Regulation S-K: consulting on any broad-based plan that does not discriminate in scope, terms, or operation, in favor of executive officers or non-employee directors of the Company, and that is available generally to all salaried employees; or providing information that either is not customized for a particular company or that is customized based on parameters that are not developed by the compensation consultant, and about which the compensation consultant does not provide advice

Commercial Excellence Governs our activities in the marketplace to deliver extraordinary value to our customers. Free cash flow should be considered in addition to, rather than as a substitute for, consolidated net income as a measure of our performance and net cash provided by operating activities as a measure of our liquidity. Free Cash Flow Calculation Year Ended Cash provided (used) by operating activities $ 221.6 Capital expenditures (63.7) Free Cash Flow 157.9 Payment of post-acquisition date earnout liability 38.1 Taxes paid on gain on divestiture 142.0 Adjusted Free Cash Flow $ 338.0 Free Cash Flow Calculation Total Discontinued Operations Continuing Operations Cash provided by operating activities $ 300.8 $ 74.4 $ 226.4 Capital expenditures 81.7 14.1 67.6 Free Cash Flow $ 219.1 $ 60.3 $ 158.8 Avient IR Presentation - Goldman Sachs and Morgan Stanley.pdf Avient IR Presentation - Goldman Sachs and Morgan Stanley - Website.pdf Avient Q4 Earnings and 2021 Outlook.pdf Avient Q4 Earnings and 2021 Outlook.pdf Avient Q4 Earnings and 2021 Outlook.pdf Avient Q4 Earnings and 2021 Outlook.pdf Avient Q4 Earnings and 2021 Outlook.pdf 2.5.21 IR Deck Attachments clean

Buyer shall have no right of deduction or set-off. Buyer assumes all risks and liabilities (i) arising out of unloading, discharge, storage, handling and use of the Product, or (ii) arising out of compliance or non-compliance with applicable laws and regulations governing or controlling such activity. Within 10 (ten) days after receipt of such notice, Seller may exercise its right to terminate the order confirmation by giving Buyer written notice.

Buyer shall have no right of set-off. Buyer may not assign rights or delegate duties hereunder except with the prior written consent of Seller, not to be unreasonably withheld. The waiver by the Seller of any right or the Seller's failure to exercise any right and/or action and/or insist upon strict performance of any provision of these Terms shall not operate as a waiver or preclude any exercise or enforcement of any other right and/or action and/or provision of this contract. 27.

APPLICATIONS • Automotive, consumer products, E&E products • PP, ABS, PC co-polyester, PA6, PA 66, PA12, and others on request KEY BENEFITS • Up to 10 hours glow depending on resin, activation energy, and pigment loading • Unlimited repetition of energy accumulation and emission process • Excellent temperature and chemical stability • Excellent weathering fastness and lightfastness • Limited influence on mechanical properties • Formulated with low-concern substances Copyright © 2023, Avient Corporation.