STAN-TONE MB-35704 LT SLATE 14-4115 STAN-TONE MB-35705 BLUE 18-4330 Geon(TM) DB5194 Neutral VOF2-B

STAN-TONE MB-35979 GREEN 6004 STAN-TONE MB-35983 GREY 7030 STAN-TONE HCC-35978 SW M GRAY

Capacity below 6GHz 5G mm-wave capacity Demand (GB/mo) B B B B B B B B Avient Corporation 83 Avient in 5G Ecosystem Avient Corporation 84 Antenna Phase Shifters Smart Home Healthcare Wearables INFRASTRUCTURE IOT DEVICES Smart Phones Autonomous Cars Virtual Reality Complete Cable Construction Strength Members Water Blocking Yarns Ripcord Yarns Cable Jacket Cable Insulation Composites Growth Outlook Avient Corporation 85 10% CAGR Megatrend Growth Rate 5G Capacity and Demand Source: Mobile Experts: 5G Millimeter Wave 2019: Radio Architecture and Outlook, March 2019 0 1 2 3 4 5 6 7 2019 2020 2021 2022 2023 2024 2025 2026 2027 D e ns e U rb an C ap ac ity ( G B /m o. ) Capacity below 6GHz 5G mm-wave capacity Demand (GB/mo) B B B B B B B B Future Revenue Growth Assumptions Avient Corporation 86 Growth in Asia, Latin America Woon Keat Moh Regional View Avient Corporation 87 U.S. & Canada 50% EMEA 25% Asia 16% Latin America 9% AVIENT GEOGRAPHY REVENUE REGIONAL ECONOMIC GROWTH 0% 1% 2% 3% 4% 5% 6% 7% 2022 2023 2024 2025 GDP, Percent Change U.S. Avient is High Touch Avient Corporation 130 86 93 85 82 79 77 74 89 85 82 81 79 78 77 74 72 25 A vi en t K W R P P G A V Y F U L R P M G C P F M C U N V R C E B N R H X L E C L E M N H U N A S H S C L 2021E (%) 1. We expect this expansion to continue as we execute our strategy, increase margins and consistently grow earnings in excess of the market. 6.5 9.0 11.2 17.7 16.7 15.5 15.3 14.5 12.2 25.7 25.5 13.5 12.2 10.7 9.8 8.6 8.5 6.9 6.2 A vi en t (2 01 1) A vi en t (2 01 6) A vi en t (2 02 1) K W R P P G A V Y R P M G C P F U L H X L E C L A S H F M C B N R S C L E M N U N V R C E H U N Source: Peer data per Bloomberg market data as of December 2, 2021 Total Enterprise Value / 2021E EBITDA Avient 2011 and 2016 valuations reflect trailing 12 months EBITDA at December 31 of the respective years.

STAN-TONE MB-31254 WHITE PX-17443-B ORANGE H.D. STAN-TONE MB-30653 YELLOW

RED MB HC-8135 W/M GREEN PP W/M FUSCHIA BLAST PP

B-33 BLUE B-57 (ABS) STAN-TONE MB-6386 BROWN

MB SLD CL GY 5C SH/HO EPIC COOL GREY 5C B RED PEARL 2 MB SLD285/A4MIC SH/HO EPIC STRONG BLUE

STAN-TONE MB-30129 SILK STAN-TONE MB-5726 RED 21047PCM COLORMASTER PC MAGENTA B/S

STAN-TONE MB-3586 GREEN M 40 M 80/90

STAN-TONE MB-5371 YELLOW TRANSL M W BURGUNDY V2 TRANSL M W BURGUNDY V3