Avient Climate-related Scenario Analysis Summary SCOPE & TIME HORIZON AVIENT SCENARIO NET ZERO FUTURE PLEDGING PROGRESS STEADFAST POLICY CONVENTION 1.3-1.5°C 1.9-2.3°C 2.4-2.8°C TRANSITION RISK Net Zero Emissions Scenario Announced Pledges Scenario Stated Policies Scenario (IEA WEO 2021 1 scenarios) (NZE) | 1.4°C (APS) | 2.1°C (STEPS) | 2.6°C Emissions peak at 2050 and slowly decline through 2100 Emissions continue to rise beyond 2100 at slower rates Emissions continue to rise beyond 2100 at current rates BUSINESS IMPLICATIONS Increased transition risk: Business impacted by climate policies, carbon prices, market pressures and technological advancements Increased physical risk: Business impacted by direct damages and indirect discruption assocated with severe changes in climate driven weather events · Highly regulated policy environment · Moderate policy regulation · Few changes to current policy settings · Ambitious; net zero commitments achieved at most all levels · Government commitments and National Determined Contributions are achieved · Not all stated commitments are achieved · Improved air pollution in advanced and emerging market & developing economies · Rising air pollution levels especially in emerging market and developing economies · Doubling of the frequency of extreme heat events by 2050 and 120% increase in intensity & rising air pollution levels especially in emerging market and developing economies · Expectation of signifcant capital allocation for innovative product design, energy efficiency investments, and clean electrification of operations · Additional levels of R&D investment will be required to contribute to and attain announced commitments Additional renewable energy will still be needed in Europe to offset the related grid emissions as will we also need to identify similar outlets in the Americas and Asia Pacific

sq. ft.) 0.54" 1.2 0.75" 1.4 2.24" 3.1 CRTM PANEL PROPERTIES Additional features include: • Material and design flexibility • �Large-scale production with in-line CNC machining • Class-A FS&T resin systems • Product design guidance MARKETS AND END-USE APPLICATIONS CRTM composite panels are ideal for use in markets where metal skin-over-frame or hand-laid composite sandwich panels are currently used.

Avient Advanced Composites – Polystrand 8375 Highfield Parkway Englewood, CO 80112 303.515.7700 TESTING SERVICES In-house testing capabilities allow for rapid material characterization and mechanical analysis according to the following standards: • ASTM D790 3-Point Flex • ASTM D7264 4-Point Flex • ASTM D2344 Short Beam Shear • ASTM C393 Core Compression • ASTM D7078 V-Notch Shear • ASTM D7249 4-Point Flex (Long Beam) • ASTM D6641 CLC Compression For more specialized resin and material analysis, additional testing capabilities are available through Polymer Diagnostics, Inc.

KEY FEATURES • Swellcoat can be applied to any yarn in fiber optic cable • Precision wound for optimal cable production speed • Single & dual ends available • Low dust • Replaces messy gels • High stability package allows for higher output FIBER-LINE™ FIBERS SUITABLE FOR WATER BLOCKING YARN • Para-Aramid • PET Polyester (standard, low, ultra low shrink) fiber • Liquid Crystal Polymer (LCP) • Fiberglass • Dyneema® Ultra-High Molecular Weight Polyethylene (UHMWPE) FIBER-LINE PERFORMANCE-ADDITIVE COATINGS • Swellcoat Coatings: water absorbing protection • Swellcoat Blocker: blocks water migration • Non-wick/Anti-wick Coatings: water resistant shield FIBER-LINE WATER BLOCKING APPLICATIONS • Binder yarn • Buffer tube thread • Filler yarn • Ripcords • Strength members Copyright © 2023, Avient Corporation.

Root causes of these problems may have included improper injection molding conditions or the incompatibility of TPE and vulcanized silicone materials with desirable additives.

In addition to an increased speed to market, our custom formulations boost your design flexibility and offer better performance-to-cost ratios as compared to traditionally used materials.

INCREASED RECYCLE CONTENT Benefits of using rePrize include: • Increased product target IV • Improved melt flow consistency • Increased recycle content • Reduced rejects and scrap • Improved low temperature performance rePrize can be combined with other liquid additives and can be used to optimize sheet manufacturing processes and product quality, whilst allowing for increased levels of recycle, contributing towards improved sustainability and reduced costs.

In addition, operating income before special items is a component of various PolyOne annual and long-term employee incentive plans

In addition to identifying risk-reduction opportunities, we require each associate—as a condition of employment—to work safely and make safe decisions at all times.

Whether an additional line at an existing manufacturing plant, or a new facility in a growing region, we ramp-up quickly and cost-efficiently. 30 Capex / Revenue 2022E (%) AVIENT IS ASSET LIGHT Avient Specialty Other 4 7 7 7 ( xc l. We will deliver for our stakeholders through multiple value creation levers—many of which are unique to Avient: o Demand for sustainable solutions, healthcare, and composites, together with Clariant Color revenue synergies, that will drive long-term revenue growth in excess of GDP o Clariant color cost synergy capture will result in significant near-term benefit In addition, we remain committed to increasing annual dividends in line with earnings growth and opportunistically buying back shares, all while remaining modestly levered. APPENDIX Performance Additives 15% Pigments TiO2 Dyestuffs 3%Polyethylene Nylon 6% Polypropylene Other Raw Materials 30% Styrenic Block Copolymer ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 35 • Significant raw material price inflation and tight inventory continued in Q4 2021 o For the full year, the average cost of hydrocarbon based materials was up 50% in 2021 o For the full year, the average cost of non- hydrocarbon based materials was up 12% in 2021 • Additionally, we continued to experience other supply chain challenges during Q4 related to raw material spot purchases, freight constraints and productivity loss as a result of these shortages Annual Purchases RAW MATERIAL AND SUPPLY CHAIN UPDATE Based on 2021 purchases, excludes Distribution business SEGMENT DATA U.S. & Canada 50% Latin America 9% 2021 SEGMENT, END MARKET AND GEOGRAPHY 37 GEOGRAPHY REVENUESEGMENT FINANCIALS 23% 19% Building and END MARKET REVENUE (1) Total company sales and adjusted EBITDA of $4,819M and $581M, respectively, include intercompany sales eliminations and corporate costs $2,402M $409M $919M $164M $1,631M $94M Sales EBITDA Distribution Specialty Engineered Materials Color Additives and Inks $581M$4,819M 15% 34% 21% Building & 9% 1% Telecommunications C O L O R , A D D I T I V E S & I N K S 2021 REVENUE | $2 .4 BILL ION 32% 40% 21% Latin America END MARKET REGION 38 S P E C I A LT Y E N G I N E E R E D M AT E R I A L S 27% Building & 2021 REVENUE | $919 MILLION END MARKET 55% 20% REGION 39 DI S TR IBU T I ON 26% 23% 20% Building and 80% 3% Latin America END MARKET REGION K E Y S U P P L I ER S 2021 REVENUE | $1 .6 B ILL ION 40 TOTA L C O M PA N Y R E G I O N A L S A L E S BY END MARKET 30% 26%Healthcare 14% Building & 2% Energy (16% of sales) 32% Building & (25% of sales) 41 19% Building & US & Canada (50% of sales) 38% 33% Building & LATAM (9% of sales)