Together, we will continue to build a strong, ethical foundation that will guide Avient’s growth now and into the future. Ashish Khandpur, President and Chief Executive Officer TABLE OF CONTENTS INTRODUCTION OUR CODE OF CONDUCT RESPECT FOR ALL HONESTY AT WORK INTEGRITY IN OUR BUSINESS CORPORATE SOCIAL RESPONSIBILITY RESOURCES CODE OF CONDUCT | 1 Our Code of Conduct CODE OF CONDUCT | 2 TABLE OF CONTENTS INTRODUCTION OUR CODE OF CONDUCT RESPECT FOR ALL HONESTY AT WORK INTEGRITY IN OUR BUSINESS CORPORATE SOCIAL RESPONSIBILITY RESOURCES Guidelines for Ethical Behavior Avient’s Code of Conduct (“Code”) is a guide to business conduct; its purpose is to help ensure that our values are ingrained in how we do business and preserved and Avient’s reputation is maintained and enhanced. This guide will help you decide how to resolve these conflicts and choose the best course of action.

Discover how injection overmolded Polystrand™ CFRTP adds strength and flexibility to this ultra-lightweight and ultra-cool binding

Rigid thermoplastic structures are overmoldable with softer thermoplastic elastomers to improve ergonomics or add additional impact protection.

Delivery dates are stated on Seller's order confirmation as a guide only and Seller reserves the right to make partial deliveries, unless the parties have expressly agreed otherwise. 3.

Our formulation expertise supports material science decisions, while our processing expertise guides customers to use the materials properly.

10 2021 O U TLO O K Synergies ($ millions) Initial Three-Year Estimate Revised Three-Year Estimate 2021 Expected Realization Administrative $ 18 $ 20 $ 15 Sourcing 24 30 15 Operational 18 25 5 Total Synergies $ 60 $ 75 $ 35 CLARIANT INTEGRATION & COST SYNERGIES UPDATE 12 • Integration going extremely well: synergy target increased from $60 million to $75 million • $5 million of synergies in 2020 and expect to realize $35 million in 2021 • Relentless focus on guiding principles of safety first, employee collaboration and exceeding customer expectations • Future revenue synergies are not part of these estimates and represent additional growth over the long term $86 $103 2020PF 2021E $0.53 $0.70 2020PF 2021E ORGANIC GROWTH PROJECTIONS – Q1 (TOTAL COMPANY) 13 Sales Adjusted Operating Income $991 $1,090 2020PF 2021E + 10% Adjusted EPS + 20% + 32% (in millions) (in millions) (1) (1) (1) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition $308 $360 2020PF 2021E $1.93 $2.40 2020PF 2021E ORGANIC GROWTH PROJECTIONS – FULL YEAR (TOTAL COMPANY) 14 Sales Adjusted Operating Income $3,783 $4,100 2020PF 2021E + 8% Adjusted EPS + 17% + 24% (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (1) (1) (in millions) (in millions) (1) 2020 Pro forma $3,783 $308 Sustainable Solutions 60 11% 24 Healthcare 60 11% 18 Composites 20 10% 10 Growth in Emerging Regions 50 7% 11 Other (GDP growth) 82 5% 11 Sub-total $4,055 7% $382 COVID Response Applications (25) - (11) Outdoor High Performance Applications (15) - (7) Asia Payroll Tax Subsidy (COVID) - - (4) FX Impact 85 - 7 Synergies - - 30 Incentives, Travel, Other Employee Costs - - (37) 2021 Estimated $4,100 8% $360 2021 ORGANIC SALES AND OPERATING INCOME (TOTAL COMPANY) 15 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (2) COVID Response Applications: facemasks, personal protective equipment Sales Growth Rate Adjusted Operating Income$ millions (1) (2) CASH FLOW AND LEVERAGE 16 • Asset light business generates significant free cash flow • Cash generation in 2021 partially offset by restructuring activities to capture synergies associated with the Clariant Masterbatch acquisition • Cash flow deployed to M&A, opportunistic share repurchases and balance sheet / leverage reduction 3.5x 2.7x 2.1x 2019PF 2020PF 2021E Net Debt / Adjusted EBITDA (1) (1) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition ($ millions) 2020 2021E Adjusted EBITDA 382 510 Working Capital: Source / (Use) 116 (30) Cash Taxes (40) (53) Interest Paid (67) (76) CapEx (62) (75) CapEx for Synergy Capture (2) (20) Restructuring for Synergy Capture (11) (25) Other 22 19 Free Cash Flow 338 250 We sell solutions not commodities.

Our formulation expertise supports material science decisions, while our processing expertise guides customers to use the materials properly.

For TPE compounds tested containing 1000–1500 ppm of ZPT, all exhibited ≥3-log reductions (99.9%) in E. coli and ≥4-log reductions (99.99%) in TABLE 2 ASTM G21 results for control and ZPT-loaded Versaflex™ and OnFlex™ TPE line products Sample Market application ZPT loading (ppm) 28-day ratinga GP 2810-40N Consumer overmold 0 4 1000 0 3000 0 CE 3120-65 Consumer electronics 0 4 1500 0 3000 0 LO 7120-45B Automotive and HVAC 0 4 1500 0 3000 0 CL2242 Medical 0 4 1500 2 3000 0 HC BT218 Medical 0 2 1500 0 3000 0 G2705N Consumer health/medical 0 4 1500 0 3000 0 Abbreviations: ASTM, American Society for Testing and Materials; HVAC, heating, ventilating, and air- conditioning; TPE, thermoplastic elastomer; ZPT, zinc pyrithione. aNumerical rating according to ASTM G21-15 where 0 indicates no growth and 4 indicates heavy growth (61%–100% sample coverage).

Our formulation expertise supports material science decisions, while our processing expertise guides customers to use the materials properly.

The vision that guides their efforts is consistent and unwavering: to be the company of choice for all.