Seller may terminate this contract at its sole option upon 14 calendar days’ written notice to Buyer. 24.

These confidentiality obligations shall be valid throughout the term of the Contract and for at minimum a period of five years following termination thereof. 24.

Information should not be regarded as “public” until at least 24 hours after it has been published by a national news medium or has otherwise become available through an official news release or official announcement. 4.

Seller may terminate this contract at its sole option upon 14 calendar days’ written notice to Buyer. 24.

Q 2 2021 P E RFO R MA N CE U P DAT E $69 $122 $0.42 $0.87 Q2 2021 – ORGANIC PERFORMANCE 10 Sales Adjusted Operating Income $870 $1,235 + 42% + 77% + 107% (1) (1) (1) Q2 2021 SEGMENT PERFORMANCE 11 CAI $488 $624 ($ in millions) SEM Distribution $54 $86 +28% +59% $239 $404 $15 $24 +69% +60% $159 $241 $17 $37 +52% +118% SPECIALTY EBITDA MARGIN EXPANSION 12 CAI (1) 2018-2020 financial information is pro forma to include a full year of Clariant Masterbatch business acquisition 15.3% 15.2% 16.2% 18.5% 2018 2019 2020 YTD 2021 14.8% 15.2% 17.6% 19.1% 2018 2019 2020 YTD 2021 SEM • Continued portfolio transformation to high-growth end markets and sustainable solutions • Clariant Masterbatch synergy realization • Investments in composites and outdoor high performance applications drive growth and mix improvements CAI EBITDA MARGIN EXPANSION 13 Legacy CAI 18.9% 18.9% 20.3% 2019 2020 YTD 2021 Legacy 11.9% 13.8% 16.8% 2019 2020 YTD 2021 • Synergy capture translating to the bottom line • Positive mix with growth in healthcare, consumer and packaging end-markets • World-class vitality index of 35% represents sales from products introduced in the last five years. ColorWorks innovation centers are specially designed to foster imagination and enable creative exploration of innovative solutions • Focus on customers’ sustainability initiatives through recyclability and post-consumer recycled materials for packaging applications • Supports 8-12% long-term revenue growth expectations across our sustainable solutions portfolio 14 2020 Pro forma $870 $69 Sustainable Solutions 66 37% 26 Healthcare 29 20% 7 Composites 12 36% 6 Growth in Asia / LATAM 47 39% 11 Other 190 48% 22 Sub-total $1,214 40% $141 COVID Response Applications (15) (8) FX Impact 36 4 Synergies 11 Incentives, Travel, Other Employee Costs (26) 2021 Actual $1,235 42% $122 Q2 2021 ORGANIC SALES AND OPERATING INCOME 15 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Sales Growth Rate Operating Income$ millions 16 Q2 2020PF Q2 2021 (2) Financial information is presented on a constant currency basis (1,2) (44% of total revenue) (56% of total revenue) Q2 END MARKET SALES PERFORMANCE +26% +38% +46% +103% +51% +9% +7% +67% Energy Telecom Building & Transportation Industrial Healthcare Packaging Consumer Q2 YEAR-OVER-YEAR EBITDA BRIDGE Q2 2020 Pro forma $ 106 Demand 69 17 EBITDA$ millions • Demand impact driven by growth in sustainable solutions and consumer products • Price increases more than offset raw material and supply chain impacts (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition CAI: Price / Mix 40 Inflation (32) SEM: Price / Mix 23 Inflation (18) Distribution: Price / Mix 81 Inflation (77) Net Price Benefit 17 Supply Chain Disruptions (14) COVID Response Applications (8) Synergies 11 Incentives, Travel, FX, Other (22) Q2 2021 Actual $ 159 Q1 2021 Actual $ 161 CAI: Price / Mix 32 Inflation (22) SEM: Price / Mix 15 Inflation (9) Distribution: Price / Mix 50 Inflation (48) Net Price Benefit 18 Supply Chain Disruptions (12) Demand / Seasonality (6) Other (2) Q2 2021 Actual $ 15918 EBITDA$ millions • Price increases more than offset raw material and freight inflation impacts • Demand impact driven by Q2 seasonality for the business Q1 TO Q2 SEQUENTIAL EBITDA BRIDGE Q 3 AN D FU LL Y EA R 2021 O U TLO O K $74 $98 $0.46 $0.68 ORGANIC GROWTH PROJECTIONS – Q3 20 Sales Adjusted Operating Income $925 $1,150 + 24% + 32% + 48% FULL YEAR GUIDANCE INCREASED 21 Sales Adj.

Van Hulle President, Global Color, Additives & Inks PolyOne Corporation Page 16 Building & 7% Electrical & 1% 14% 31% Textiles 7% 2014 Revenue by Industry Segment 2014 Revenues: $0.9 Billion At a Glance Global Color, Additives & Inks 44% Europe 36% Latin America PolyOne Corporation Page 17 A Case Study for Transformational Success 1.7% 4.6% 5.1% 5.5% 7.2% 8.1% 9.7% 12.2% 14.7% 2006 2007 2008 2009 2010 2011 2012 2013 2014 Operating Margin $9 $26 $28 $25 $43 $50 $75 $104 $125 2006 2007 2008 2009 2010 2011 2012 2013 2014 Operating Income ($M) •Cultural mindset shift from volume to value •Customer centric focus and training •Differentiation with innovation and service •Acquisitions expand portfolio of technology Global Color, Additives & Inks PolyOne Corporation Page 18 395 262 2006 2014 From Volume… (lbs in millions) -34% $94 $293 2006 2014 To Value Gross Margin ($ in millions) +210% Global Color, Additives & Inks PolyOne Corporation Page 19 Accelerating Growth Global Color, Additives & Inks Innovation Market Growth/ Megatrends Geographic Expansion Collaboration PolyOne Corporation Page 20 Who We Are Growing With Global Color, Additives & Inks PolyOne Corporation Page 21 Innovation Pipeline Potential Global Color, Additives & Inks Addressable Market ($ millions) $300 $500 $400 Prototype Frame Opportunity Scale-up & Test Market Build Business Case Commercial Launch Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 3 3 5 0 1 8 3 1 1 5 1 1 1 1 0 Breakthrough Platform Derivative PolyOne Corporation Page 22 Megatrends Aligned with Key End Markets Increasing Energy Efficiency Protecting the Environment Improving Health and Wellness Megatrend End Markets Globalizing and Localizing Health & Wellness Transportation Packaging Consumer Global Color, Additives & Inks PolyOne Corporation Page 23 $150M Revenue Potential $500M Revenue Potential Additive Technologies InVisiOSM Color & Design Services Key Initiatives Global Color, Additives & Inks PolyOne Corporation Page 24 Innovation Market Growth / Megatrends Geographic Expansion Collaboration Platinum Vision 1.7% 7.2% 14.7% 20%+ 2006 2010 2014 2020 Platinum Vision World Class Operating Margin Accelerating Growth Global Color, Additives & Inks PolyOne Corporation Page 25 Summary • Global Capabilities • Innovation Leader • Collaboration – One PolyOne Global Color, Additives & Inks Color Matters PolyOne Corporation Page 26 Global Specialty Engineered Materials Craig M. S&P 500 -100% 200% 300% 400% 500% 600% POL S&P 500 PolyOne Corporation Page 85 Formula for Success Innovation Market Beating Performance Excellence in Execution PolyOne Corporation Page 86 Track Record of Successful Acquisitions $12 $50 2007 2014 $22 $39 2012 2014 $24 $69 2012 2014 GLS ColorMatrix Spartech OI in $ millions PolyOne Corporation Page 87 Driving Toward Premier Profitability EBIT Margins for top tier companies Victrex 41% 18% Albemarle Eastman 17% Hexcel 17% FMC 16% Ecolab 14% 12% Specialty EBIT Margin – 2014 IFF 19% Celanese 13% PolyOne Corporation Page 88 2006 2014 2020 “Where we were” “Where we are” Platinum Vision Operating Income % Specialty: Global Color, Additives & Inks 1.7% 14.7% 20%+ Global Specialty Engineered Materials 1.1% 12.1% 20%+ Designed Structures & Solutions 1.4%(2012) 7.3% 12 – 14% Performance Products & Solutions 5.5% 7.7% 10 – 12% Distribution 2.6% 6.1% 6.5 – 7.5% Specialty Platform % of Operating Income 6.0% 65% 80%+ ROIC 5.0% 11.3% 15% Adjusted EPS Growth N/A 37% Double Digit Expansion 2020 Platinum Vision PolyOne Corporation Page 89 Platinum Vision: Pathway to Accelerated Growth Organic Sales Growth Margin Expansion Share Repurchases Acquisitions PolyOne Corporation Page 90 2006 2010 2014 2020 Driving Toward a Premium Specialty Multiple 6x 4x Commodity POL 8x Hybrid 10x 14x+ Mid-Tier Specialty Premium Specialty M ul tip le POL POL POL PolyOne Corporation Page 91 The New PolyOne: A Specialty Growth Company Why Invest In PolyOne?

DISCLAIMER Avient Corporation 3 Avient Corporation 4 Welcome Chairman, President, and Chief Executive Officer INTRODUCTION Sustainability for a Better Tomorrow Senior Vice President and Chief Financial Officer Avient Corporation 5 WE ARE A FORMULATOR CUSTOM FORMULATION Avient Corporation 6 Avient Corporation 7 WE ARE INNOVATORS 2,500+ ACTIVE PATENT FILINGS WORLDWIDE 1,100+ RESEARCH AND DEVELOPMENT ASSOCIATES >85% Stage-gate technology projects enable sustainable solutions INDIA INNOVATION CENTER 33% 2022 VITALITY INDEX 140+ MATERIAL SCIENCE PhD ASSOCIATES Avient Corporation 8 3% 3% 5% Avient Specialty Formulators Other Specialty / Chemical Companies CAPEX / Revenue 2023E Global footprint enables greater flexibility to exceed needs of customers and deliver localized technical and formulation expertise 9 36 24 Manufacturing Locations by Region WE ARE ASSET LIGHT Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA Avient Corporation 9 Asset-light flexibility enables more nimble manufacturing capabilities and lower overhead Periods of economic weakness have driven higher levels of cash generation due to working capital improvement PROVEN TRACK RECORD OF HIGH FREE CASH FLOW CONVERSION 80% 80% 81% 84% 83% 79% 50% 70% 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023E 150 200 250 300 350 400 Fr ee C as h Fl ow C ve rs io Fr ee C as h Fl ow FCF $ AVNT FCF Conversion % S&P FCF Conversion % 2 Recent Divestitures - Combined $1.7B in Proceeds PORTFOLIO EVOLUTION Avient Corporation 10 Combined $3.6B Investment in Acquisitions Since 2016 Color Business Distribution 2016 2022 PORTFOLIO TRANSFORMATION 46% 87% 0% 20% 2005 2010 2015 2020 2023 % o f A dj us te d EB IT DA Commodity JVs Distribution Performance Products & Solutions Specialty Businesses Adjusted EBITDA from Specialty Applications Avient Corporation 11 END MARKET TRANSFORMATION Defense Avient Corporation 12 8% 23% 4% 2006 2023E Other Industri es 22% 56% 14% 43% 9% 2006 2023E Reduced Exposure to Cyclical End Markets End Market Diversification Transportation Building & Construction 57% Defense IMPROVING PROFITABILITY AND EXPANDING MARGINS Avient Corporation 13 Adj. Avient Corporation 19 Sustainability is integral to achieving our vision, mission, and performance that: • creates a safe and accepting environment that empowers associates to perform to their fullest potential • gives back to the communities where we work and live • enables customers to innovate solutions that help make the planet more sustainable • protects the environment by addressing climate change, conserving natural resources and preventing pollution • actively manages risk for investors & yields financial performance Avient Corporation 20 EXTERNAL ALIGNMENT DEEPLY EMBEDDED IN OUR CULTURE Avient Corporation 21 MEGATRENDS OFFER OPPORTUNITIES FOR SUSTAINABLE SOLUTIONS Advancements in Technology Transformation of Municipalities Lifestyle Refresh Rethinking Globalization Evolution of Avient Corporation 22 SUSTAINABILITY TRENDS DRIVING AVIENT’S GROWTH Changes in consumer behavior driven by climate change & desire to reduce plastics waste Consumers seeking to buy more sustainable products from more sustainable companies Brand owner and retailer demand to meet sustainability targets & needs Rising emphasis on preserving and protecting natural resources & human life Increased current and pending government legislation and regulations CONSUMERS WANT SUSTAINABLE PRODUCTS Source: Simon Kucher 2022 Avient Corporation 23 Consider sustainability when they purchase Rate sustainability as a key criterion in purchasing decisions 34% Are willing to pay more for sustainable products Average premium consumers are willing to pay for sustainable products PURPOSE-DRIVEN CONSUMERS NOW LARGEST SEGMENT Source: IBM / National Retail Federation 2022 Avient Corporation 24 “Purpose-driven consumers seek products and brands that align with their values and provide health and wellness benefits.

Bộ Quy tắc ứng xử của chúng ta 2023 THÔNG ĐIỆP TỪ TỔNG GIÁM ĐỐC ĐIỀU HÀNH 1 TẦM NHÌN VÀ CHIẾN LƯỢC CỦA CHÚNG TA 2 CÁC GIÁ TRỊ CỐT LÕI VÀ CÁ NHÂN 2 HƯỚNG DẪN VỀ HÀNH VI CÓ ĐẠO ĐỨC 4 CÁC GIÁ TRỊ CÁ NHÂN 4 GIẢI QUYẾT CÁC CÂU HỎI VÀ BÁO CÁO CÁC TÌNH HUỐNG KHÔNG TUÂN THỦ 6 ĐƯỜNG DÂY NÓNG VỀ ĐẠO ĐỨC 6 KHÔNG TRẢ ĐŨA 6 ÁP DỤNG BỘ QUY TẮC ỨNG XỬ 6 VI PHẠM BỘ QUY TẮC 7 ĐA DẠNG VÀ HÒA NHẬP 9 PHÂN BIỆT ĐỐI XỬ HOẶC QUẤY RỐI 9 CÁC MỐI QUAN HỆ TẠI NƠI LÀM VIỆC 9 LẠM DỤNG CHẤT 10 AN NINH VÀ BẠO LỰC TẠI NƠI LÀM VIỆC 10 THÔNG TIN, DỮ LIỆU VÀ HỒ SƠ CHÍNH XÁC 12 LIÊM CHÍNH TRONG KẾ TOÁN 12 TRUYỀN THÔNG CỦA CÔNG TY 14 BẢO VỆ VÀ SỬ DỤNG TÀI SẢN 14 THÔNG TIN ĐỘC QUYỀN VÀ BẢO MẬT, Ý TƯỞNG VÀ SỞ HỮU TRÍ TUỆ 14 BẢO MẬT, THÔNG TIN CÁ NHÂN VÀ BẢO VỆ DỮ LIỆU 15 SỬ DỤNG INTERNET VÀ EMAIL 15 TRUYỀN THÔNG XÃ HỘI VÀ MẠNG XÃ HỘI 15 BẢO MẬT MÁY TÍNH, CẤP PHÉP PHẦN MỀM VÀ BẢN QUYỀN 16 THÔNG TIN VÀ GIAO DỊCH NỘI GIÁN 16 CÁC HOẠT ĐỘNG/ĐÓNG GÓP CHÍNH TRỊ VÀ ĐÓNG GÓP TỪ THIỆN 17 ĐIỀU TRA VÀ YÊU CẦU CỦA CHÍNH PHỦ 17 Liêm chính trong Kinh doanh của Chúng ta GIAO DỊCH CÔNG BẰNG 19 HỐI LỘ VÀ LẠI QUẢ 19 ĐẠI LÝ VÀ TƯ VẤN 20 CẠNH TRANH 20 QUÀ TẶNG VÀ CHIÊU ĐÃI 20 XUNG ĐỘT LỢI ÍCH 21 TỰ GIAO DỊCH 22 THƯƠNG MẠI QUỐC TẾ 22 Trách nhiệm Xã hội của SỰ BỀN VỮNG 24 AN TOÀN, SỨC KHỎE VÀ MÔI TRƯỜNG 24 AN TOÀN SẢN PHẨM VÀ DỊCH VỤ 25 TÔN TRỌNG NHÂN QUYỀN 25 CAM KẾT CHUNG 25 Các nguồn lực Hỗ trợ và Thông tin Liên lạc 26 1 THÔNG ĐIỆP TỪ TỔNG GIÁM ĐỐC ĐIỀU HÀNH Thân gửi các Nhân viên Avient, Là một phần của một công ty toàn cầu đang phát triển, chúng ta đang phải đối mặt với những tình huống đầy thách thức và việc ra quyết định phức tạp. Đường dây nóng về đạo đức có sẵn trên toàn cầu để thực hiện việc báo cáo qua web hoặc điện thoại, với khả năng đa ngôn ngữ, hoạt động 24 giờ một ngày, bảy ngày một tuần. Nếu bạn kinh doanh ở các quốc gia khác hoặc với những người từ các quốc gia khác hoặc bạn đi công tác quốc tế, hãy tham khảo ý kiến của bộ phận Pháp chế của Avient để được hướng dẫn. 23 Trách nhiệm Xã hội của 24 SỰ BỀN VỮNG Nhân viên, khách hàng và nhà cung cấp không phải là các bên liên quan duy nhất ở Avient.

Seller may terminate this contract at its sole option upon 14 calendar days’ written notice to Buyer. 24.

Seller may terminate (opzeggen) the contract at its sole option upon 14 calendar days’ written notice to Buyer. 24.