WOON KEAT MOH Senior Vice President and President, Color, Additives & Inks Woon Keat Moh (“Moh”) is senior vice president and president, Color, Additives & Inks, for Avient Corporation, a premier provider of specialized and sustainable material solutions and services. Moh previously worked at Bayerand Clariant, where he served in various commercial leadership roles. This has included Sales Director for Avient’s Color and Additives segment in Asia and General Manager of Engineered Materials Asia.

WOON KEAT MOH Senior Vice President, President of Color, Additives & Inks Woon Keat Moh (“Moh”) is Senior Vice President and President of Color, Additives & Inks at Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world. Moh previously worked at Bayerand Clariant, where he served in various commercial leadership roles. This has included Sales Director for Avient’s Color and Additives segment in Asia and General Manager of Engineered Materials Asia.

Executive Vice President and CFO, will provide insights and commentary on the company's expected second quarter performance as well as the status of the previously announced Clariant Masterbatch acquisition.

In addition to communicating fourth quarter and full year 2020 performance, we will use the webcast to update investors and analysts on the Clariant Masterbatch integration and synergy capture, which is ahead of schedule, and introduce growth projections for 2021."

The loading of ZPT was reduced from 1500 to 1250, and 750 ppm, and a blue tint colorant masterbatch was added at two levels, 3% and 6% by weight of the final compound. CFU, colony-forming unit; ZPT, zinc pyrithione 6 ZANDER ET AL. Curtis White, R.

GUIDANCE 11 14.8% 15.8% Adjusted EBITDA Margin % Better-than-expected margins driven by: • Resilient demand for composites and sustainable solutions which improved mix of higher margin applications • Deceleration of raw material inflation • Cost reduction activities Q1 EBITDA BRIDGE 12 $ millions CAI: Price / Mix 19) Inflation (4) SEM: Price / Mix 6) Inflation (4) Net Price Benefit 17) Wage and Energy Inflation (13) Cost Reductions 8) FX (6) Q1 2023 Actual $134) Adjusted EBITDA Q1 2022 Pro Forma $ 176) Demand (48) • Weak demand conditions in-line with previous expectations • Pricing continues to cover inflation of raw materials, wages and energy U.S. & Canada 40% 38% 17% Q1 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 18% 23% Building and 6%Telecommunications END MARKET REVENUE (1) Total company sales and adjusted EBITDA of $846M and $134M, respectively, include intercompany sales eliminations and corporate costs $537M $91M $310M $64M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $134M$846M (1) 13 Q1 2023 SALES BY REGION Yo Y C H A N G E ( E X C L . National Defense budget of $842 billion submitted to Congress in Q1 2023 • European NATO members annual defense spend expected to increase by up to 20%  Dyneema® is the world’s strongest fiber™  One of the highest strength to weight ratios of any material on Earth  Direct relationships with industry leading armor manufacturers  Resistant to most chemicals, UV, and moisture to handle any environment Avient Confidential 17 DEFENSE Source: US Department of Defense, defense.gov, NATO17 Source: TRANSPORTATION • Increased EPA regulations requiring improved fuel efficiency, enabled in part by lower-weight vehicles • Automakers preparing for 2/3 of U.S. vehicles to be 100% electric by 2032  Lightweight panels that establish both strength and stiffness resulting in decreased energy usage, lower emissions  Long-lasting Color applications to resist UV exposure, temperature fluctuations and exceed the stylistic requirements of global automakers 18 $130 $530 $0.60 $2.40 2023 GUIDANCE 19 Sales Adjusted EBITDA $845 $3,400 Adjusted EPS (in millions) (in millions) CASH FLOW / LEVERAGE 20 • Maintaining free cash flow and leverage guidance from February earnings call • IT investment to further integrate acquired businesses and capture operational efficiencies • Restructuring actions to streamline operations and improve profitability, primarily in Europe ($ millions) 2023E Cash Flow from Operating Activities 350$ Less: Run-Rate CapEx (110) CapEx for IT System Upgrade (25) CapEx for Restructuring (15) Total CapEx (150) Free Cash Flow 200$ Adjusted EBITDA 530$ Net Debt / Adjusted EBITDA 2.9x LONG-TERM REVENUE GROWTH DRIVERS Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Healthcare 8–10% Composites 10% Asia / LATAM 5% Other (GDP growth) 2–3% Avient 6.5% 21 Sustainable Solutions 32% Asia / LATAM Composites Other (GDP Growth) 39% • Virtual presentation to be held September 20, 2023 • The company will be conducting an investor-focused presentation around our sustainability solutions portfolio Avient Confidential 22 SUSTAINABILITY INVESTOR DAY 22 $340M $405M $455M $550M $790M $915M 2016 2017 2018 2019 2020PF** 2021 2022PF*** SUSTAINABILITY FOR A BETTER TOMORROW Revenue From Sustainable Solutions* 2016-2022 ($ in millions) Organic Future Growth Revenue Assumptions From Sustainable Solutions: 8 - 12% 23 *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Color business ***2022 is Pro Forma for the acquisition of Avient Protective Materials and the divestiture of Distribution $1,175M Lightweighting Eco-Conscious Recycle Solutions VOC Reduction Sustainable Infrastructure Human Health & Safety Reduced Energy Use Bio-polymers SUSTAINABILITY NEEDS BY MARKET B&C • Eco-Conscious • Carbon footprint • Resource conservation • Carbon footprint • Bio based content • Eco-Conscious Automotive • Light weighting • Recycled Content • VOC reduction • Recycle Solutions • Carbon Footprint Packaging • Recycle Solutions • Food waste reduction Common Theme: CO2 Emission Goals Increasing Single-Use Plastic Regulation 24 INVESTING IN INNOVATION S U S T A I N A B I L I T Y P O R T F O L I O 25 AP P EN D IX 28 RAW MATERIAL 2022 ANNUAL PURCHASES Performance Additives Pigments 12% TiO2 Dyestuffs 2% Polyethylene Nylon Polypropylene Styrenic Block Copolymer Other Raw Materials 33% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials • Cost inflation decelerating, particularly for hydrocarbon-based raw materials 2022 pro forma results for the acquisition of Avient Protective Materials SEGMENT DATA U.S. & Canada 40% 37% 18% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 24% Building and END MARKET REVENUE $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M (1) 9% 30 (1) Total company sales and adjusted EBITDA of $3,653M and $592M, respectively, include intercompany sales eliminations and corporate costs C O L O R , A D D I T I V E S & I N K S 2022 REVENUE | $2 .4 B ILL ION 34% 38% END MARKET REGION 31 34% 21% Building & 1% Energy 2% 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 2022 PRO FORMA REVENUE | $1 .3 B ILL ION END MARKET 52% 35% REGION 32 19% 8%Industrial 9% Defense Building & 32% 27% 14% Building & 3% 1% Defense 1% (18% of sales) 9% 2022 PROFORMA AVIENT REGIONAL SALES BY END MARKET 27% 14% 17% Building & (37% of sales)Transportation 24% 12% Building & US & Canada (40% of sales) 56% 23% Building & 1% LATAM (5% of sales) 3% 33 PEER COMPARISONS AVIENT IS ASSET LIGHT Capex / Revenue 2023E (%) Avient Specialty Other Specialty / Note: Avient reflects 2023 estimated revenue of $3,400 and estimated run-rate CAPEX of $110M. 35 4 4 5 5 5 6 7 9 FREE CASH FLOW CONVERSION Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA. Three Months Ended March 31, 2023 Three Months Ended March 31, 2022 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 20.8 $ 0.23 $ 64.4 $ 0.70 Special items, after tax 22.3 0.24 6.4 0.07 Amortization expense, after-tax 15.1 0.16 $ 10.8 $ 0.12 Adjusted net income / EPS $ 58.2 $ 0.63 $ 81.6 $ 0.89 March 31, Reconciliation of Pro Forma Sales 2023 2022 Sales $ 845.7 $ 892.2 APM pro forma adjustments — 94.9 Pro forma sales $ 845.7 $ 987.1 1 Three Months Ended Reconciliation to EBITDA and Adjusted EBITDA: 2023 2022 Net income from continuing operations – GAAP $ 21.3 $ 64.7 Income tax expense 7.7 20.0 Interest expense, net 28.8 16.9 Depreciation and amortization 50.5 37.6 EBITDA from continuing operations $ 108.3 $ 139.2 Special items, before tax 27.3 6.7 Depreciation and amortization included in special items (1.8) (2.1) Adjusted EBITDA $ 133.8 $ 143.8 Pro forma APM adjustments — 32.0 Pro forma adjusted EBITDA $ 133.8 $ 175.8 Pro forma adjusted EBITDA as a % of sales 15.8 % 17.8 % 2023 2022 Sales: Color, Additives and Inks $ 537.0 $ 649.5 Specialty Engineered Materials 309.7 243.1 Corporate (1.0) (0.4) Sales $ 845.7 $ 892.2 Operating income: Color, Additives and Inks $ 65.6 $ 94.5 Specialty Engineered Materials 43.1 38.3 Corporate (51.6) (30.6) Operating income $ 57.1 $ 102.2 Depreciation & amortization: Color, Additives and Inks $ 25.8 $ 26.0 Specialty Engineered Materials 21.2 7.8 Corporate 3.5 3.8 Depreciation & Amortization $ 50.5 $ 37.6 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 91.4 $ 120.5 Specialty Engineered Materials 64.3 46.1 Corporate (48.1) (26.8) Other income (expense), net 0.7 (0.6) EBITDA $ 108.3 $ 139.2 AVNT Fermium Conference - May 2023.pdf AVNT Q1 2023 Earnings Presentation.pdf AVNT Q1 2023 Earnings Presentation 5.2 221pm IR Deck - AVNT-2023.03.31 (002).pdf

Company Trade name Avient Colorants Netherlands B.V. Company start date 11-04-2006 Activities SBI-code: 46751 - Wholesale of basic and industrial chemicals Employees 4 Establishment Establishment number 000019561423 Trade name Avient Colorants Netherlands B.V. Employees 4 Sole shareholder Name Clariant Plastics & Coatings AG Visiting address Rothaustrasse 61, CH-4132 Muttenz 1, Switzerland Registered in Handelsregister Basel-Landschaft, Switzerland This extract has been certified with a digital signature and is an official proof of registration in the Business Register.

MEVOPUR Colors for Ophthalmic Closures Application Bulletin_CN8.18-1 * 可根据要求提供FDA/EU合规信息 应用公告 用于眼科药物容器盖的 着色剂MEVOPUR™ 用于眼部（眼科）用药物容器盖的MEVOPUR标 准母粒系列产品符合美国眼科学会（AAO）的颜 色标准。 法规支持 经过预测试的原材料： - ISO 10993-1 - USP 第、章（VI类） - USP （指南），6.2.3 可萃取元素； USP - ICHQ3D/USP 2 可萃取金属 - 欧洲药典 3.1 聚烯烃（如适用） FDA发布的注册药品管理档案（III类）和/或医 疗器械管理档案 食品接触符合FDA/EU*要求 主要特性 在三个通过ISO 13485认证的医疗生产线生产 全球统一的配方，提供全球一致性和供应链保 障 变更控制记录的不限于CAS编号级别，降低变 更风险 不含动物源性物质和邻苯二甲酸盐 标准母粒在PE载体中提供，可根据要求在PP 中提供 可以采用针对应用选择的特定树脂提供预着色 配方 药物类型 颜色说明 潘通色号参考 埃万特产品代码 （PE基） 肾上腺素能激动剂组合 浅绿色 373 C PE6M176349 肾上腺素能激动剂 紫色 2583 C PE4M176057 抗感染药 棕褐色 467 C PE8M176130 非甾体类抗炎药 灰色 冷灰色 4 C PE7M176184 甾体类抗炎药 粉色 197 C PE3M176237 免疫调节剂类抗炎药 橄榄绿 5763 C 按要求提供 β-受体阻滞剂 黄色 黄色 C PE1M176160 β-受体阻滞剂组合 深蓝色 281 C PE5M176272 碳酸酐酶抑制剂 橘黄色 1585 C PE2M176089 细胞毒素 黑色 6 C PL9M176008 缩瞳剂 深绿色 348 C PE6M176267 散瞳剂和睫状肌麻痹剂 红色 1797 C PE3M176236 前列腺素类似物 绿松石 326 C PE5M176273 适用医疗保健使用限制—见下文。

The graph in Figure 6 shows the maximum amount of displacement versus the height of the rib. Figure 6 shows how the rib creates a thick region within the part. It provides additional mixing to the melt, which is especially helpful when using colorants.

Add visual surface effects and aesthetics without complexity – You can achieve various aesthetic appearances using Gravi-Tech material such as color variation, metallic finish, or marbling and swirling. Utilize existing molds – Replace current ABS solutions with low shrinkage PP grades and utilize your existing molds GT5200- 0013 GT7300- 0006 GT7300- 0010 PVD 2.0 GT5200- 0016 PVD 3.0 GT5200- 5025 GT7300- 5020 NATURAL FD GT5200- 5009 BLACK SO FD GT5200- 5044 GT5200- 5016 X2 GT7300- 5007 X1 WHITE FD GT7300- 5003 GT5200- 5003 GRV PP- 030-IO 5068 X2 5009 X5 BLACK SO 5021 NATURAL FD 5003 BLACK FD  BLACK FD  GRV PP- 030-IO CI GT5200- 5089 NATURAL C GT5200- 5082 BLACK Specific Gravity* 2 2 2 3 1.25 1.6 1.85 2 2 2.2 2.5 2.5 3 1.20 1.90 2.2 2.50 2.50 3.0 1.20 1.20 Electroplating No Yes Possibly Possibly Possibly Yes Yes Yes No Possibly Possibly Yes No Yes Yes Yes Not tested Not tested Not tested Yes Yes Physical Vapor Deposition (PVD)/Vacuum Metallization Possibly Possibly Yes Yes Possibly Possibly Possibly Possibly Yes Yes Yes Yes Yes Possibly Possibly Possibly Yes Yes Yes Possibly Possibly Base Resin PP ABS ABS PP PP ABS PP PP PP ABS ABS PP PP PP PP ABS ABS PP PP rPP (ocean bound) rPP (PCR) Base Color White Black Grey Black Natural Natural Black Beige Black White Black Black Black Black Black Natural/ Beige Black Black Black Natural Black FDA Compliant* Yes Yes Yes Yes No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No Filled Mineral Mineral Mineral Metallic Mineral Mineral Mineral Mineral Metallic Mineral Metallic Metallic Metallic Mineral Mineral Mineral Metallic Metallic Metallic Mineral Mineral Region Produced North  America North  North  North America Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Copyright © 2024, Avient Corporation.