FL.Datasheet Twisting .indd FIBER OPTICAL CABLES MOVING HIGH PERFORMANCE FIBERS FORWARD WHY FIBER-LINE® TWISTING? Specialized machinery enables for high-speed processing without damage to the filaments. For over 25 years, FIBER-LINE® has provided science- driven expertise that improves the performance and the end-use processing of high performance fibers.

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; • Changes in laws and regulations regarding plastics in jurisdictions where we conduct business; • Fluctuations in raw material prices, quality and supply, and in energy prices and supply; • 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 achieve strategic objectives and successfully integrate acquisitions, including Avient Protective Materials (APM); • An inability to raise or sustain prices for products or services; • Our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • Information systems failures and cyberattacks; • 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; and • 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 and any recessionary conditions Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. WHAT WE DO: MATERIAL SCIENCE 5 CUSTOM FORMULATION M AY 3 , 2023 W EB CAS T Keeping Safety First o Relentless focus on best-in-class safety performance as an ACC Responsible Care® organization Exceeding Customer Expectations o Complementary technologies and customer relationships offer opportunity for future revenue synergies o Proven innovation-led commercial strategy with strong brands and participation across the full value chain Collaboration in Innovation o Leveraging Dyneema®, the world’s strongest fiber™, to accelerate growth of sustainable, ultralight and high performance applications People – Culture is Everything o Talented, passionate and collaborative associates drive an effective integration strategy o Strong Great Places to Work® scores reflect positive integration efforts in first year AVIENT PROTECTIVE MATERIALS INTEGRATION 7 AVIENT PROTECTIVE MATERIALS K E Y I N D U S T R I E S PERSONAL PROTECTION Military • Law Enforcement • First Responders • Body Armor • Helmets • Vehicle Protection 50% MARINE & SUSTAINABLE INFRASTRUCTURE Towing / Mooring • Aquaculture • Floating Wind • Offshore Cranes 30% CONSUMER Consumer • Outdoor High Performance • Safety Equipment 8 Figures reflect approximate proportions of 2022 sales Q 1 P ER FO RM A N CE Q1 2023 PERFORMANCE VS. FX -11% FX -3% Total Avient -14% YoY Comparison against 2022 pro forma results • Aging infrastructure driving need for greater technological advancements and upgrades • Increased focus on strength and capacity of electrical grid plays into further adoption of composites into the market  UV, weather-resistance, customized capabilities  Best-in-class customer responsiveness  Local high-quality manufacturing, unparalleled breadth of portfolio  Expanding position in insulators, utility poles, crossarms, and wind energy Avient Confidential 15 ENERGY 15 • Fiber-optic investments from AT&T, Corning, Commscope continue to drive industry toward innovation • $42B BEAD program in Infrastructure Bill to increase cable deployments; well-positioned to capitalize on “Made in America” requirement and “last mile” buildout  Flame retardance, weather-resistance enables faster, safer, more reliable connections  Local manufacturing, unparalleled breadth of portfolio  Expanding position in insulation for wire jacketing, 5G buildout TELECOMMUNICATIONS Source: U.S.

High density materials that can deliver a premium feel Gravi-Tech™ replaces metal and maintains a high quality look and feel for luxury closure (English language version) Gravi-Tech™ replaces metal and maintains a high quality look and feel for luxury closure (Spanish language version)

Long fiber reinforced thermoplastics (LFTs) provide alternatives to and benefits over traditional materials used in aftermarket parts, offering designers fresh options with high strength, low density, resistance to moisture absorption, excellent design freedom, and the ability to eliminate secondary processing.  High design freedom through injection molding Environmentally stabilized nylon 6 and 6/6 long fiber composites for application intermittently exposed to water high humidity that require consistent structural performance

To download a high-resolution image, please click here: FOR MEDIA USE ONLY  This success was achieved in further collaboration with Plastic Bank, which provides the recycled ocean-bound plastic waste that Avient formulates into high-performing polyolefin materials.   We are proud to have been part of the collaboration with Plastic Bank and Hager and have the opportunity to transform discarded ocean-bound plastic into high-performing polymers," said Matt Mitchell, Director of Global Marketing, Specialty Engineered Materials at Avient.

To download a high-resolution image, please click here: FOR MEDIA USE ONLY Moreover, coloring processes for dark recycled material can be challenging due to the need for high amounts of colorant to overcome the PCR base color.  The joint study demonstrated that using certain components together from both companies can more consistently produce a wide range of color options for PCR material without having to add high levels of colorant.

These continuous fiber-reinforced polymer composites are ideal in applications where high stiffness and light weight performance are critical. Standard and custom shapes and sizes are available with a variety of resins including polyester, vinyl ester, and epoxy, and reinforcements including mat/roving (MR-GFRP) or unidirectional (U-GFRP) fiberglass, or high performance unidirectional carbon fiber. Exceptionally high mechanical properties for lightweight structures

With robust bio-compatibility pre-testing, healthcare quality systems and change control standards in place, these ‘medical grade’ concentrates and pre-color formulations can help minimize risk and avoid high costs of non-compliance. High-temperature Healthcare Colorants: Colorant Chromatics™ Transcend™ Vibrant, biocompatible colors for high-performance healthcare applications

Recycled Content, High Performance High strength and durability Outdoor High Performance Manufacturer For Marine Accessories

We depend on integrated information systems to conduct our business. investments and alter the business we conduct. investments and alter the business we conduct.