Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by:

Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by:

Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by:

POWER CABLE PRODUCER C A B L E I N S U L A T I O N • Easy to process • To pass CPR fire test • Low smoke and toxicity values on smoke test • Possibilities for low-voltage cables • Cable insulation that passed G18 of the CEI EN 50363-0: 2015 standard • Offered Sioplas technology for cross-linking providing ambient curing • Delivered new cable design possibilities for low- voltage cables while offering easy processing • Processed more efficiently than market- established elastomeric technology which is processed using a CV line • Provided cable insulation that passes the hot set test at 250°C ECCOH XL Cross-Linkable Solutions 8054 KEY REQUIREMENTS WHY AVIENT?

MSC Certificate Place and date: For the issuing office: Shanghai, 20 March 2024 DNV - Business Assurance Building 9, No. 1591 Hongqiao Road, Changning DistrictShanghai China 200336 Zhu Hai Ming Management Representative Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid.

MSC Certificate Place and date: For the issuing office: Høvik, 23 January 2025 DNV Product Assurance AS Veritasveien 1, 1363 Høvik, Norway Cecilie Gudesen Torp Management Representative Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid.

Our Board sets the appropriate “tone at the top” when it comes to risk tolerance and management. The 2023 performance goals were set in accordance with our strategic plan framework and annual operating plan, developed at the end of 2022. The SARs granted in 2023 to the Named Executive Officers are set forth in the 2023 Grants of Plan- Based Awards table of this proxy statement.

China TEL: +86 21 32799000 Zhu Hai Ming Management Representative Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid.

Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by:

ELECTRONICS BRAND P O R T A B L E S P E A K E R W E I G H T E D C O M P O N E N T • Ensures quality sound performance • Injection molding capabilities for design flexibility • Impact protection within a set temperature range • Meets target density 3.0g/cm3 and product weight 400g • Reduced scrap and improved product manufacturability, compared to metal, with an injection molded formulation • Met strict testing requirements, including achieving desired impact protection performance at the specific temperature range and target weight • Maintained depth of base sound Gravi-Tech™ Density Modified Formulation KEY REQUIREMENTS WHY AVIENT?