MEDICAL TUBING EXTRUDER B I O P H A R M A C E U T I C A L T U B I N G • Low leachables & extractables • Great tensile performance and kink resistance • Good thermal weldability • Excellent clarity and medical blue tint • ISO 10993-4 & 5, USP Class VI & Animal Derivative Free (ADF) • Supplied drop-in material replacement to overcome supply constraints of incumbent TPE • Offered a lower extractable profile than comparable materials in the market • Enabled easy material transition without changes in tooling or thermal welding machine settings • Formulated solution with proprietary additives to provide clarity and prevent yellowing after sterilization Versaflex™ HC BT218 Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT?

 Setting goals and objectives that drive continual improvement and check effectiveness of risk reduction measures in product safety and stewardship

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:

Gamma 650 Parque Industrial Santa María Ramos Arizpe, Coahuila 25900 México has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: ISO 14001:2015 The Environment Management System is applicable to: COMPOUNDING OF THERMOPLASTIC PRODUCTS This certificate may be found on the ABS QE Website (www.abs-qe.com).

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.

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?

A brief description of the types of awards which may be granted under the 2017 Plan is set forff th below. Our Board sets the appropriate “tone at the top” when it comes to risk tolerance and management. The 2016 performance goals for our performance measures were set in accordance with our strategic plan framework.

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.