Deflection is dependent on support span distance. 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in .75" Hammerhead Panel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in 1.50" Hammerhead Panel Simply supported beam deflection for Hammerhead™ panels with 5.3 lb/ft3 core density 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in .50" Hammerhead Panel 0.00 0.50 1.00 1.50 2.00 2.50 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in 1.00" Hammerhead Panel 50lb 100lb 150lb 200lb 250lb LOAD CASE Hammerhead™ PETG Laminate Hammerhead™ PETG Laminate * To calculate deflection for different panel widths, use the following formula: Deflection = Chart value* [12 / panel width]. Example: Deflection for 24 inch panel = Chart value *[12 / 24] 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in .50" Hammerhead Panel 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in .75" Hammerhead Panel 0.00 0.50 1.00 1.50 2.00 2.50 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in 1.00" Hammerhead Panel 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in 1.50" Hammerhead Panel Hammerhead™ PETG Laminate Hammerhead™ PETG Laminate Simply supported beam deflection for Hammerhead™ panels with 8.4 lb/in3 core density * To calculate deflection for different panel widths, use the following formula: Deflection = Chart value* [12 / panel width]. Example: Deflection for 24 inch panel = Chart value *[12 / 24] Fixed end beam deflection for Hammerhead™ panels with 8.4 lb/ft3 core density 50lb 100lb 150lb 200lb 250lb LOAD CASE Hammerhead™ PETG Laminate Hammerhead™ PETG Laminate 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 i n c h w id th * Support Distance - in .50" Hammerhead Panel 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in 1.00" Hammerhead Panel 0.00 0.10 0.20 0.30 0.40 0.50 0.60 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in .75" Hammerhead Panel 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in 1.50" Hammerhead Panel * To calculate deflection for different panel widths, use the following formula: Deflection = Chart value* [12 / panel width].

Microsoft PowerPoint - Avient Q4 Earnings and 2021 Outlook PRINT AVIENT CORPORATION F O U R T H Q U A R T E R 2 0 2 0 R E S U L T S A N D 2 0 2 1 F I N A N C I A L G U I D A N C E (NYSE: AVNT) F E B R U A R Y 9 , 2 0 2 1 DISCLAIMER 2 Forward-Looking Statements In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. D is t. ) R P M P P G K W R F U L A V Y G C P IF F F M C H X L H U N E M N F O E E C L K R A S C L A S H C E G R A A LB Median: 5%Median: 3% Source: Peer data per Bloomberg market data as of February 5, 2021 Avient reflects 2021 estimated revenue of $4,100M and excludes one-time synergy capture CAPEX ($20M) Avient Specialty Formulators Other Chemical/Specialty Companies Free Cash Flow Conversion (1) 2021E (%) Being asset light helps us to generate strong free cash flow that is in line with specialty formulators. With the Clariant Masterbatch acquisition and divestment of the PP&S business, our exposure is now concentrated in less-cyclical and high-growth markets, with increased geographic diversification and a more specialized portfolio that can significantly expand EBITDA margins. 24 Avient reflects 2021 estimated EBITDA of $510M OUR VALUATION VERSUS PEERS Avient Specialty Formulators Other Chemical/Specialty Companies 9.5 21.1 13.2 13.2 12.0 12.0 9.7 25.2 23.1 14.7 13.5 12.9 11.0 11.0 11.0 10.2 9.6 9.3 9.3 9.1 8.6 8.3 A vi en t K W R A V Y R P M G C P P P G F U L A L B E C L H X L IF F F M C G R A B N R F O E A S H C E S C L U N V R E M N H U N K R A Median: 11.0xMedian: 12.6x SUMMARY: WHY INVEST IN AVIENT?

TIER 1 SUPPLIER S E A T B U C K L E S Y S T E M • Rapid development of 3 colors for global OEM platform, for 3 materials (POM, SAN, PP) • Help Tier 1 transition from printing to laser marking of buckles • Develop formulation that offers laser marking solution plus color • Quick reaction to develop three colors for this global vehicle launch • Smartbatch™ color + laser marking formulation met requirements for critical safety components Smartbatch™ Combination Colorants & Additives KEY REQUIREMENTS WHY AVIENT?

Coffee Capsules case study DESIGN FOR COMPOSTING C O F F E E C A P S U L E S • Compliance with European Standard EN 13432 • Biodegradable and compostable solutions approved by certified body (TÜV Austria) • Color customization for various kind of biopolymers • Formulation expertise and regulatory assistance OnColor™ Bio-Colorants KEY REQUIREMENTS WHY AVIENT?

Avient Corporation 78 Time needed to download a 2 hour movie Low Latency Avient Corporation 79 R E D U C I N G T H E T I M E F O R D A T A T O T R A V E L 4G 300 milliseconds 5G 3 milliseconds Infrastructure 5 G R E Q U I R E S M O R E E Q U I P M E N T 4G4G 5G5G Fiber optic cable Additional radio heads on base station antennae More and larger base station antennae Radio heads 16x more fiber optic cable than 4G Base station antennae Millions of small cell antennae Global 5G infrastructure demand will grow 50% CAGR through 2028 Avient Corporation 80 Infrastructure 5 G A N T E N N A E D E N S I T Y 3G to 4G = 25x more antennae 4G to 5G = 16x more antennae Source: Fiber Broadband AssociationAvient Corporation 81 Infrastructure 5 G R E Q U I R E S M O R E C A B L E • Overall broadband expansion will require 28 million km of fiber optic cable over next 5 years • U.S. Capex / Revenue 2021E (%) Avient is Asset Light Avient Specialty Formulators Other Chemical/Specialty Companies 2 3 1 2 3 3 3 4 3 3 4 5 5 6 7 9 A vi e nt A vi e nt ( E xc l. 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.

EXTRUSION FILM MANUFACTURER S I G N B O A R D P R O T E C T I V E T A P E • Film application with a high concentration of TIO2 (>80%) • Good performance on light fastness and anti-yellowing OnColor Polymer Colorants KEY REQUIREMENTS WHY AVIENT?

PP NONWOVEN MANUFACTURER G E O T E X T I L E S • High concentrate UV solution (up to 50% light protection) in PP nonwoven textiles • Shorter lead time from existing supplier • Local technical support • Long-lasting UV stability • Provided high concentrate UV protection in nonwoven textiles with dosage @ 50% • Shortened the lead time with global supply and technical service • Offered excellent UV stability CesaTM Light Additives KEY REQUIREMENTS WHY AVIENT?

Catering oem CATERING OEM F O O D B L E N D E R P I T C H E R • FDA compliance with no Bisphenol A (BPA) • High heat resistance • Transparent aesthetics • Good processing performance • Developed a solution that seamlessly complements pure PES materials • Minimized color deviation • Enabled the possibility of weight reduction • Made target color available • Provided commercial, technical, and operational excellence support Colorant Chromatics PES Color Concentrate KEY REQUIREMENTS WHY AVIENT?

TIER 2 SUPPLIERS P A N E L S F O R O F F - R O A D V E H I C L E S • Transfer OEM-approved materials from North America to manufacturers in Europe • Help manufacturers avoid cash flow issues on small lot orders • Managed REACH qualification for 10 OEM- approved materials • Optimized logistics so manufacturers could purchase small lots 10 engineered material and Masterbatch solutions KEY REQUIREMENTS WHY AVIENT?

MAJOR OUTDOOR RETAILER I N T E R N A L W I L D G A M E B A C K P A C K F R A M E • Simpler manufacturing process to enable higher volume production • Retain shape while carrying wild game load • Toughness to survive backcountry use • Easy cleaning after use • Lowered production cost by substituting injection molded composite for thermoset layup • Redesigned frame to meet higher structural load requirements • Integrated design features to ease cleaning and improve functionality Complēt™ Long Carbon Fiber PA66 Composite KEY REQUIREMENTS WHY AVIENT?