600 A GREY 270 MS 1204 2 HS GREY A PP FR 8-6 LMS-1000

Whale Grey DYNA PQ-COOL GREY 5C PP FR 8-6 LMS-1000

You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. PolyOne Corporation Page 4 PolyOne Commodity to Specialty Transformation • Volume driven, commodity producer • Heavily tied to cyclical end markets • Performance largely dependent on non- controlling joint ventures 2000-2005 2006 - 2009 2010 – 2014 2015 and beyond • Steve Newlin appointed, Chairman, President and CEO • New leadership team appointed • Implementation of four pillar strategy • Focus on value based selling, investment in commercial resources and innovation to drive transformation • Substantial EPS growth from $0.13 to all-time high of $1.80 • Shift to faster growing, high margin, less cyclical end markets • Key acquisitions propel current and future growth, as well as margin expansion • Specialty mix expands to 65% of Operating Income – strongest mix of earnings in history • Accelerating growth • Deliver consistent double digit annual EPS growth • Maintain >35% vitality index • Pursue strategic acquisitions that expand specialty offerings and geographic breadth • Invest and grow current and next generation talent PolyOne Corporation Page 5 Building & 10% Electrical & 11% 9% Distribution 28% PP&S 52% 69% 13% 7% Asia 2014 Revenues: $3.8 Billion End Markets 2014 Revenues: $3.8 Billion PolyOne At A Glance $13 $31 $46 $46 $87 $96 $122 $195 $242 2006 2007 2008 2009 2010 2011 2012 2013 2014 Specialty Operating Income ($M) PolyOne Corporation Page 6 Old PolyOne *Operating Income excludes corporate charges and special items 2% 34% 43% 62% 65% 69% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2013 2014 Q1 2015 2020 % o f O pe ra tin g In co m e* JV's Performance Products & Solutions Distribution Specialty 80%+ Specialty OI $5M $46M $87M $195M $242M $60M Mix Shift Highlights Specialty Transformation Transformation 2020 Platinum Vision Platinum Vision PolyOne Corporation Page 7 Confirmation of Our Strategy The World’s Premier Provider of Specialized Polymer Materials, Services and Solutions Specialization Globalization Operational Excellence Commercial Excellence PolyOne Corporation Page 8 -100% 0% 200% 300% 400% 500% 600% Strategy and Execution Drive Results $0.12 $0.27 $0.21 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 '06 '07 '08 '09 '10 '11 '12 '13 '14 ‘06-‘14 Adjusted EPS CAGR = 40% Adjusted EPS Share Price vs. S&P 500 PolyOne Corporation Page 9 2006 Q1 2015 2020 “Where we were” “Where we are” Platinum Vision 1) Operating Income % Specialty: Global Color, Additives & Inks 1.7% 16.2% 20%+ Global Specialty Engineered Materials 1.1% 16.3% 20%+ Designed Structures & Solutions 1.4% (2012) 2.7% 12 – 14% Performance Products & Solutions 5.5% 6.5% 10 – 12% Distribution 2.6% 5.9% 6.5 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 69% 80%+ 3) ROIC 5.0% 11.4% 15% 4) Adjusted EPS Growth N/A 22 Consecutive Quarters of EPS Growth Double Digit Expansion Proof of Performance & 2020 Goals PolyOne Corporation Page 10 Platinum Vision: Pathway to Accelerated Growth Organic Sales Growth Margin Expansion Share Repurchases Acquisitions PolyOne Corporation Page 11 Innovation Drives Earnings Growth *Percentage of Specialty Platform revenue from products introduced in last five years $20 $53 2006 2014 Research & Development Spending ($ millions) Specialty Platform Vitality Index Progression* 14% 27% 2006 2014 Specialty Platform Gross Margin % 20% 44% 2006 2014 Specialty Vitality Index Target ≥ 35% PolyOne Corporation Page 12 Megatrends Aligned with Key End Markets Decreasing Dependence on Fossil Fuels Protecting the Environment Improving Health and Wellness Megatrend End Markets Globalizing and Localizing Health & Wellness Transportation Packaging Consumer PolyOne Corporation Page 13 Prototype Frame Opportunity Scale-up & Test Market Build Business Case Commercial Launch Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 6 9 7 3 5 12 5 3 2 8 4 2 4 3 1 Breakthrough Platform Derivative A Rich Pipeline of Opportunity Number of Projects 14 8 18 12 22 74 Addressable Market ($ millions) $700 $600 $600 $1,900 PolyOne Corporation Page 14 60% 98% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2008 Q1 2015 Pension Funding** As of March 31, 2015 Debt Maturities & Pension Funding Net Debt / EBITDA* = 2.1x $49 $317 $600 $0 $100 $200 $300 $400 $500 $600 $700 $800 2015 2020 2023 Debt Maturities As of March 31, 2015 ($ millions) Coupon Rate: 7.500% 7.375% 5.250% ** includes US-qualified pension plans only *TTM 3/31/2015 PolyOne Corporation Page 15 Free Cash Flow and Strong Balance Sheet Fund Investment / Shareholder Return  Expanding our sales, marketing, and technical capabilities  Investing in operational and LSS initiatives  ~75% of capital expenditures fund growth initiatives Organic Growth Acquisitions Share Repurchases Dividends $0.16 $0.20 $0.24 $0.32 $0.40 $0.10 $0.20 $0.30 $0.40 $0.50 2011 2012 2013 2014 2015 Annual Dividend  Targets that expand our: • Specialty offerings • End market presence • Geographic breadth  Synergy opportunities  Adjacent material solutions  Repurchased over 500k shares in Q1 2015  Repurchased 11.8 million shares since early 2013  8.2 million shares are available for repurchase under the current authorization PolyOne Corporation Page 16 PolyOne Core Values Innovation Collaboration Excellence PolyOne Corporation Page 17 The New PolyOne: A Specialty Growth Company Why Invest In PolyOne?

You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. That’s Avient. 16,000+ CUSTOMERS >75% ARE CUSTOMIZED SOLUTIONS TO UNIQUE SPECIFICATIONS of sales AVIENT’S VALUE CREATION LEVERS 8 Exposure to high growth end markets Investment in commercial resources and innovation Strong free cash flow generation / capital deployment Clariant Masterbatch synergies COVID recovery Re-Rating: Current share price valuation Avient is poised for near-term and long-term shareholder value creation. These investments also consider our global footprint, and we are positioned very well and strategically from a regional perspective. 9 Growth Drivers 2020E Revenue Long-Term Growth Rate Sustainable Solutions $ 550 8–12% Healthcare 560 8–10% Composites / 5G 210 10% Growth in Emerging Regions 650 5% Other (GDP growth) 1,730 2–3% Pro Forma Avient $ 3,700 6.5% (1) Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) (2) 2020 is estimated and Pro forma to include full year of the Clariant Masterbatch business SUSTAINABLE SOLUTIONS Avient has a highly technical and broad portfolio of material solutions that help our customers—and our planet—be more sustainable.

Key performance indicators and goals are set for each business 8. Yes, as part of the ISO 9001 documentation. 8. Business is PolyOne Quality Survey Standard Response 2015 12 09 Source: Corporate Quality Page: 8 of 14 awarded to vendors on the basis of their performance. 3.

Independent Registered Public Accountant Services and Related Fee Arrangements Report of the Audit Committee The Audit Committee of the Board of Directors CORPORATE GOVERNANCE Director Independence Lead Director Board Leadership Structure Board’s Oversight of Risk Code of Ethics, Code of Conduct and Corporate Governance Guidelines Related Person Transactions Communication with Board Board and Committees Board Attendance Board Committees AAudit Committee – Primary Responsibilities and Requirements NUMBER OF MEETINGS IN 2019: 8 MEMBERS: Compensation Committee – Primary Responsibilities and Requirements NUMBER OF MEETINGS IN 2019: 5 Governance and Corporate Responsibility Committee – Primary Responsibilities and Requirements NUMBER OF MEETINGS IN 2019: 2 MEMBERS: Environmental, Health and Safety Committee – Primary Responsibilities and Requirements NUMBER OF MEETINGS IN 2019: 2 Board Refreshment and Diversity 0% 20% 40% 60% 80% 100% 5 or fewer 6 to 10 More than 10 Years of Service 3 of 10 Director nominees Diversity NON-EMPLOYEE DIRECTOR COMPENSATION 2019 NON-EMPLOYEE DIRECTOR COMPENSATION Non-Employee Director Compensation Highlights Non-Employee Director Retainer and Meeting Fees Role Annual Cash Retainers NON-EMPLOYEE DIRECTOR COMPENSATION 2019 Director Compensation Table Name Fees Earned or Paid in Cash Stock Awards Total (1) Fees Earned or Paid in Cash (column (a)) Stock Awards (column (b)) Option Awards Outstanding and Fully-Vested Deferred Shares Number of Deferred Shares(1) Beneficial Ownership of Our Common Shares Number of Shares Owned(1) Right to Acquire Shares Total Beneficial Ownership % of Class(4) Name and Address Number of Common Shares % of Class Stock Ownership Guidelines for Non-Employee Directors Delinquent Section 16(a) Reports COMPENSATION DISCUSSION AND ANALYSIS Executive Summary Name Title How Pay is Tied to Company Performance. a) Section 5 Section 9 (d) Section 8 Person Outstanding Company Voting Securities Incumbent Board Business Combination Section 13 (k) (l) (m) (n) (o) Section 5 Section 9 (p) (q) (r) (s) (t) (u) Section 4 Section 9 (v) (w) Section 8 (x) Section 8 (y) Section 8 (z) (aa) (bb) Section 6 Section 9 (cc) Section 7 Section 9 (dd) Section 7 Section 9 (ee) (ff) (gg) Section 5 Section 9 (hh) 3. Restricted Stock Units. 8.

Accordingly, we expect first quarter adjusted EPS of $0.68, up 8% from $0.63 in 2023." Avient will provide additional details on its 2023 fourth quarter performance and 2024 outlook during its webcast scheduled for 8:00 a.m. Webcast Details Avient will host a webcast on Wednesday, February 14, 2024 at 8:00 a.m.

SPORTING GOODS Boots, bindings, protective equipment MARINE Hull reinforcement, seats, paddles 50% Long Glass Fiber Reinforced 50% Long Glass Fiber Reinforced PP + 0° 50% Long Glass Fiber Reinforced PP + 0°/90° 50% Long Glass Fiber Reinforced PP + 0°/90°/90°/0° 17K 28K 29K 50% Long Glass Fiber Reinforced PP + 0°/90°/0° 29K 31K +60.7% FLEXURAL STRENGTH (ASTM D7264) IMPACT RESISTANCE (ASTM D3763) 50% Long Glass Fiber Reinforced 50% Long Glass Fiber Reinforced PP + 0° 50% Long Glass Fiber Reinforced PP + 0°/90° 50% Long Glass Fiber Reinforced PP + 0°/90°/0° 50% Long Glass Fiber Reinforced PP + 0°/90°/90°/0° E ne rg y T ot al ( J) Fo rc e P ea k (k N ) 18 16 14 12 10 8 6 0 6.0 5.9 4.0 3.0 2.0 1.0 0.0 11.2 15.1 14.6 12.7 16.4 1.2 1.9 2.8 4.0 5.0 +58.3% +34.8% 50% Long Glass Fiber Reinforced 50% Long Glass Fiber Reinforced PP + 0° 50% Long Glass Fiber Reinforced PP + 0°/90° 50% Long Glass Fiber Reinforced PP + 0°/90°/90°/0° 17K 28K 29K 50% Long Glass Fiber Reinforced PP + 0°/90°/0° 29K 31K +60.7% FLEXURAL STRENGTH (ASTM D7264) IMPACT RESISTANCE (ASTM D3763) 50% Long Glass Fiber Reinforced 50% Long Glass Fiber Reinforced PP + 0° 50% Long Glass Fiber Reinforced PP + 0°/90° 50% Long Glass Fiber Reinforced PP + 0°/90°/0° 50% Long Glass Fiber Reinforced PP + 0°/90°/90°/0° E ne rg y T ot al ( J) Fo rc e P ea k (k N ) 18 16 14 12 10 8 6 0 6.0 5.9 4.0 3.0 2.0 1.0 0.0 11.2 15.1 14.6 12.7 16.4 1.2 1.9 2.8 4.0 5.0 +58.3% +34.8% Application design Modeling & simulation Prototyping & validation Material selection Composite/ resin compatibility Custom formulations Mold filling analysis Technical support Process optimization PROCESSING MATERIALS Material selection is crucial to an application’s success.

特点 电线和电缆 高度阻燃 毒性和烟密度极低 不同级层间可交联 可与色母料、添加剂浓缩液、紫外稳定剂一同加工 高度阻燃 毒性和烟密度极低 适合进行挤压和注射成型 管和配件 材料（ECCOH） 5924C 5920 5511C 5806UV 5127UV 5549/1 8300-8001 8300-8003 8300-8008 1125C 1052C 5309 5995/1C 5555C 5286 3140-3 6151 5865C XLS8002 6649 中低压电缆 光缆 机车/船 光缆 电缆/光缆 电子线 电缆 电子线 电子线 电缆 机车缆护套 电缆/光缆 电缆 机车缆 电缆 电缆/光缆 电缆 电缆 电缆/光缆 应用 热老化等级 热塑性 √ √ √ √交联型 交联方式 密度48 熔融指数（150℃/21.6kg） 硬度shore D 拉伸强度MPa 断裂伸长率% 氧指数% 耐环境应力开裂ESCR 阻燃性能 低温性能 耐油性能 耐UV性能 耐泥浆性能 低摩擦性能 产地 有焰（1mm）ASTM E662 无焰（1mm） 70 235 45 265 68 275 210 1.49~1.51 4.0 54 12.5 200 36 1.47 3.5 55 210 34 1.53 0.8 56 150 40 1.51 1 47 9.5 38 1.46 3.8 54 15.5 32 2.9 49 11.7 45 CPR B 中国/欧洲 1.29 13.5 17.5 345 27 1.27 9.5 13 360 29 90 190 1.49 8 15.7 245 35 63 1.54 2.7 55 40 106 214 CPR C 8 50 12.5 34 84 206 250 39 1.48 3 11 215 36 2.8 10.3 165 41 1.58 4.2 12.4 160 CPR B 1.46 6 17 160 33 39 143 1.51 4 43 50 150 1.54 2.3 56 155 35 D类 5.8 12 250 27 1.35 10 49 15 320 28 辐照/硅烷 辐照 辐照 辐照 辐照 辐照 自交联/水浴辐照/硅烷 √ √ √ √ √ √ √ √ √ √ √ √ √ √ 90℃ 90℃ 90℃ 105℃ 90℃ 105℃ 125℃ 105℃ 105℃ 105℃ 90℃ 90℃ 90℃105℃ 105℃ 105℃ 105℃ 105℃ 加工方式（挤出） 材料性能:热塑状态（非交联后） 烟密度（最大） 特殊性能 ECCOH™低烟、无卤解决方案

• Automoción y otros medios de transporte. 100/0 90/10 80/20 70/30 60/40 40/60 30/70 20/80 10/90 0/100 0,9 1,1 2,0 2,4 2,8 3,7 3,8 4,9 0 1 2 3 4 6 7 8 6,5 1,6 MD6727 MD6748 MD6700 MD6666 9512 MD6649 MD6741 0 2 4 6 8 10 12 % de MD6741/MD6700 El grado de adherencia puede personalizarse para superficies de sustrato.