Purchase price multiple rapidly declining on strength of business and synergy capture 12 $133 $201 2019PF 2022E 12 Clariant Color EBITDA Growth Purchase Price Multiple 10.8x 7.0x 6.4x 2019PF 2021 2022E w/ Full Synergies 11.9% 16.3% 2019PF 2022E EBITDA Margins CLARIANT COLOR: TRANSFORMATIONAL ACQUISITION (1) Financial information is pro forma to include a full year of Clariant Color business SUNBELT PVC Resins DSS 20 Acquisitions $4.8B Investment $2.7B of Annual Revenue 5 Divestments $2.3B Proceeds TPE PP&S HISTORIC SPECIALIZATION THROUGH M&A 13 Distribution DSM Protective BOLT-ON ACQUISITION HISTORY 14 Commercial Resources Operating Income Operating Margins 259 363 $40 $139 Established Acquisitions (> 7 years) + 40% + 248% + 1300 bps I N V E S T T O G R O W SPECIALTY TRANSFORMATION T O D A Y 46% 67% 86% 0% 60% 80% 2005 2010 2019 2021 2022 PF % o f A d ju st ed E B IT D A • Commodity JVs • Distribution • Performance Products & Solutions • Specialty Businesses (1) Adjusted EBITDA is EBITDA excluding corporate costs and special items (2) Pro forma for the acquisition of Dyneema® and divestiture of Distribution (1 ) (2) 15 Building & 43% 14% Telecom. 2% 2006 2022 Pro Forma 21% Building & Telecom.

Thermoplastics offer versatility and a wide range of applications. Our product portfolio, which we believe to be one of the most diverse in our industry, includes specialty formulated high-performance polymer materials that are manufactured using thermoplastic resins and elastomers, which are then combined with advanced polymer additives, reinforcement, filler, colorant and/or biomaterial technologies. Garratt worked for DuPont Dow Elastomers, a joint venture of Dupont and Dow (global manufacturers of engineered thermoset rubber and thermoplastic elastomer materials) in market development and product management positions, culminating in a regional commercial leadership role for Europe, the Middle East and Africa.

In 2022, we launched new products and expanded applications for the healthcare market that continue to evolve our portfolio to include more sustainable options, including: Mevopur™ Healthcare Bio-Based Polymer Solutions are color and performance-enhancing additive solutions formulated with bio-based polymers for healthcare applications Mevopur™ Nucleation Additive Concentrates help produce thinner walls in polyolefin applications while maintaining mechanical properties and reduce Moisture Vapor Transmission Rate (MVTR) in HDPE Mevopur™ Chemical Foaming Agents (CFA) enable reduced material use, while meeting regulatory requirements for medical devices and pharmaceutical packaging REMAFIN™ EP White Colorants for Pharmaceutical Packaging designed for a range of pharmaceuticals, safeguarding light transmission while meeting regulatory requirements Trilliant™ HC Glass Filled Polyketone offers a lower carbon footprint alternative to nylon with excellent chemical resistance, high temperature performance, and good wear resistance Versaflex™ HC Thermoplastic Elastomers are formulated to meet demanding healthcare device and application challenges without phthalate plasticizers, including respiratory applications Application Highlight: Biopharmaceutical Manufacturing Clamps Develop an alternative to traditional nylon materials that meets dimensional stability, impact and wear resistance requirements, while enabling the customer to address consistency of supply and sustainability objectives. Visit Our Sustainability Site HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2022 46 https://www.avient.com/industries/healthcare https://www.avient.com/products/polymer-colorants/healthcare-colorants/mevopur-healthcare-bio-based-polymer-solutions https://www.avient.com/products/polymer-additives/healthcare-additives/mevopur-healthcare-functional-additives https://www.avient.com/products/polymer-additives/healthcare-additives/mevopur-healthcare-functional-additives https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/remafin-ep-white-colorants https://www.avient.com/sites/default/files/2023-01/Trilliant%20HC%20GF%20Polyketone%20_PK_%20Product%20Bulletin.pdf https://www.avient.com/products/thermoplastic-elastomers/versaflex-hc-thermoplastic-elastomers https://www.avient.com/sites/default/files/2023-03/Trilliant%20HC%20glass-filled%20PK%20-%20Biopharma%20Tubing%20Clamps.pdf Transportation Market Needs: Improve Efficiency, Extend Range, Enable Circularity As the demand for low- and zero-emission, energy-efficient transportation continues to grow across all vehicle types, transportation requirements are evolving quickly. Visit Our Sustainability Site HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2022 49 https://www.avient.com/industries/telecommunications https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/preperm-low-loss-dielectric-thermoplastics https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/preperm-low-loss-dielectric-thermoplastics https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/edgetek https://www.avient.com/products/engineered-polymer-formulations/sustainable-formulations/eccoh-low-smoke-and-fume-non-halogen-formulations https://www.avient.com/sites/default/files/2020-09/case-study-one-pager-hybrid-5g-cable.pdf https://www.fiber-line.com/en/products/water-blocking-yarn https://www.avient.com/products/advanced-composites/pultrusion-and-continuous-filament-winding-technology/glasforms-pultruded-rods-tubes-custom-profiles https://www.fiber-line.com/en/markets/fiber-optic-cables Protective Materials Market Needs: Lighter Weight, High Strength, Reduce Carbon Footprint Improving safety for those that protect us—law enforcement, first responders, and military service personnel—while they keep communities around the world safe.

History PET is the most common thermoplastic polymer in the polyester family.

APPLICATION BULLETIN 1 Typical properties: these are not to be construed as specifications HOW TRILLIANT™ HC FORMULATIONS HELP TO SOLVE THE MOST DIFFICULT PERFORMANCE AND PROCESS CHALLENGES Trilliant HC conductive thermoplastics can be customized to meet your unique challenges.

The dielectric measurement data up to 220 GHz indicates that the dielectric properties of PREPERM thermoplastics are stable and not dependent on the frequency.

It is often used in thermoset and thermoplastic applications where the fiber is used as reinforcement.

Types • Multi-filament • Spun Key Features • Excellent flame resistance • Excellent chemical resistance • Can withstand short-term heat exposure in temperatures > 1000C • Excellent thermal insulator • Low smoke and combustion toxicity • Very compatible with thermoset & thermoplastic resins Disadvantages • Low tensile strength • Low tensile modulus • Affected by oxidizing acids (i.e.

This is to certify that the Quality Management System of: Avient Corporation - Avon Lake 33587 Walker Road Avon Lake, OH 44012 The Quality Management System is applicable to: Certificate No: 65799 Certification Date: 01 October 2020 Effective Date: 25 September 2023 Expiration Date: 30 September 2026 Revision Date: 26 September 2023 Dominic Townsend, President DESIGN AND MANUFACTURE OF COLOUR AND ADDITIVE CONCENTRATES, THERMOPLASTIC RESINS AND SPECIALTY COMPOUNDS This certificate may be found on the ABS QE Website (www.abs-qe.com). José Garibaldi 2401 Lomas de Zamora, Buenos Aires 1832 Argentina Activity: Management of QMS, Design and manufacture of colour and additive concentrates, thermoplastic resins and specialty compounds Activity: Administration, Site management, Manufacture, Laboratory (QC and Colormatching), Procurement, Maintenance, Infrastructure, Warehouse and Transport, Sales Page 3 of 10 Facility: Avient Colorants France S.A.S. 1995 route de la Vallée du Giffre Saint-Jeoire en Faucigny 74490 France Facility: Avient Colorants Germany GmbH Kornkamp 50 Ahrensburg, Thuringia 22926 Germany Activity: Administration, Site management, Manufacture, Laboratory, Procurement, Maintenance, Infrastructure, Warehouse and Activity: Administration, Site management, Manufacture, Laboratory, Procurement, Maintenance, Infrastructure, Warehouse and Facility: Avient Colorants Germany GmbH Hohenrhein 1 Lahnstein, Thuringia 56112 Germany Facility: Avient Guatemala S.A. 27 Avenida 34–11, Zona 12 Parque Global 1012 Guatemala Activity: Administration, Site management, Manufacture, Laboratory, Maintenance, Infrastructure, Warehouse and Transport Activity: Administration, Site management, Manufacture, Laboratory, Procurement, Maintenance, Infrastructure, Warehouse and Facility: Avient (Chile) SpA Camino a Melipilla 15170 Maipú, Región Metropolitana de Santiago 9250000 Chile Facility: Avient Colombia S.A.S.

Complēt™ REC Long Fiber Reinforced Composites Incorporating Recycled Resin The Complēt™ REC portfolio consists of long fiber reinforced composites incorporating post-consumer recycled (PCR) nylon 6 resin, post-industrial recycled (PIR) nylon 66 resin, and PIR thermoplastic polyurethane (TPU) resin.