High strength, unidirectional fibers and engineered thermoplastic resins combine to create Polystrand™ continuous fiber reinforced thermoplastic (CFRTP) tapes and laminates that can help reduce weight while maintaining exceptional strength and impact resistance in a variety of applications. Polystrand™ PETG continuous fiber reinforced composite laminate thermally bonded to steel door skin

No. 0962.01) 09/05/2023 Page 1 of 1 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 AVIENT CORPORATION 80 North West Street Norwalk, OH 44857 Craig Polta Phone: 419 660 4278 MECHANICAL Valid To: September 30, 2025 Certificate Number: 0962.01 In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to this laboratory to perform the following tests on plastics: Test Method(s) Test Name ASTM D256; ISO 180 Notched Izod ISO 179 (1eA) Determination of Charpy Impact ASTM D523 Gloss ASTM D618 (Method A) Conditioning of Test Specimens ASTM D792 (Method A) Specific Gravity ASTM D1238 (Method B) Melt Flow Rate ASTM D3012 Thermal Oxidative Stability ASTM D3641 Injection Molding Test Specimens FMVSS 302 Flammability ASTM E1331; SAE J1545 Spectrophotometric Color Difference SAE J1885 (Rev.

CASE STUDY: TRILLIANT™ HC HIGH PERFORMANCE FORMULATIONS Challe nge Accepted. Trilliant HC High Performance Formulations were developed for the application needs. Testing was conducted by an independent third party.

The concentrates provide high glossiness and metallic effects and can be customized to offer scratch resistance, anti-dust adhesion, UV resistance, and more. You have the responsibility to conduct full-scale end-product performance testing to determine suitability in your application, and you assume all risk and liability arising from your use of the information and/or use or handling of any product. Applications: • Automotive interior trim and exterior trim components • Appliances, electronics and electrical housings • Personal care and cosmetic packaging • Painted or plated consumer products Benefits: • Efficiently replaces paint and plating for various applications • Reduces number of processing steps and complexity • Provides high glossiness and metallic effects for high-quality paint look • Can be customized to include scratch, dust, and UV resistance

Impress™ High Gloss Colorants - Product Bulletin (Chinese) OnColor™ Impress™ High Gloss Metallic Effect Colorants (English) Versaflex™ Thermoplastic Elastomers Customized a soft (Shore A) TPE solution that passed strict tests, including thermal deformation (80°C for 2 hours), UV resistance, and assembly resistance

Impress™ High Gloss Colorants - Product Bulletin (Chinese) OnColor™ Impress™ High Gloss Metallic Effect Colorants (English) Versaflex™ Thermoplastic Elastomers Customized a soft (Shore A) TPE solution that passed strict tests, including thermal deformation (80°C for 2 hours), UV resistance, and assembly resistance

You have the responsibility to conduct full-scale end-product performance testing to determine suitability in your application, and you assume all risk and liability arising from your use of the information and/or use or handling of any product. MOVING HIGH PERFORMANCE FIBERS FORWARD Knowledge of fiber technology is the essence of what we offer to our customers. Since 1987, we have processed a myriad of high performance synthetic fibers for a wide variety of markets and applications.

While BBIT possesses higher thermal stability (ca. 300�C) than ZPT (Td,5% loss = 260�C), it also becomes increasingly volatile at temperatures in excess of 175�C (Figure S2). Without proper engineering controls, this would challenge the applicability for TPEs under normal thermal processing conditions for extrusion and molding. YI and opacity are increased as ZPT loading increases, and processing at high temperatures or extensive residence times appear to result in further yellow-shifting (Figure S3).

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; • the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • disruptions or inefficiencies in our supply chain, logistics, or operations; • changes in laws and regulations in jurisdictions where we conduct business, including with respect to plastics and climate change; • fluctuations in raw material prices, quality and supply, and in energy prices and supply; • demand for our products and services; • production outages or material costs associated with scheduled or unscheduled maintenance programs; • unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; • our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • information systems failures and cyberattacks; • our ability to service our indebtedness and restrictions on our current and future operations due to our indebtedness; • amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; • other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation, geopolitical conflicts, and any recessionary conditions; and • other factors described in our Annual Report on Form 10-K under Item 1A, “Risk Factors.” The world’s strongest fiber™ Dyneema® HB330, HB332 Advanced hard ballistic unidirectional materials for personal and vehicle armor Unmatched ballistic protection Maximum V50 ballistic performance to stop high-velocity threats Outstanding thermal behavior Retains performance in extreme conditions Ultra-light strength Lightest solution without compromising protection Defense: enabling up to compared to Dyneema® gen-2 materials currently used 20% weight savings Law enforcement: enabling up to compared to Dyneema® gen-1 materials currently used 45% weight savings Q4 2024 Copyright © . 2025 8 Q4 2024 performance vs guidance • Adjusted EBITDA of $110M includes unfavorable FX of $2M 110 Guidance Actual RANGE 109 114 Adj.

273.06 ETFE750 CC HIGH BLUE 273.08 ETFE750 CC HIGH GREY 273.62 ETFE750 CC HIGH RED