New from Avient featured at PRSE 2023: Cesa™ Nox A4R Additives for Recycling can protect post-consumer polyolefins against oxidation, typically resulting in defects like black spots, gels, and discoloration. About Avient  

Avient’s chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of Avient and each business segment and to allocate resources. In addition, operating income before the effect of special items is a component of Avient’s annual incentive plans and is used in debt covenant computations. Three Months Ended Year Ended 2023 2022 2023 2022 Sales: Color, Additives and Inks $ 459.4 $ 490.8 $ 2,007.4 $ 2,355.0 Specialty Engineered Materials 259.8 300.8 1,138.2 1,044.4 Corporate (0.2) (1.2) (2.8) (2.5) Sales $ 719.0 $ 790.4 $ 3,142.8 $ 3,396.9 Operating income: Color, Additives and Inks $ 61.8 $ 44.3 $ 259.9 $ 301.0 Specialty Engineered Materials 29.4 35.2 142.5 140.1 Corporate (48.1) (79.1) (205.6) (197.8) Operating income $ 43.1 $ 0.4 $ 196.8 $ 243.3 Other expense, net: $ 4.3 $ (28.4) $ 5.8 $ (59.7) Depreciation & amortization: Color, Additives and Inks $ 22.2 $ 25.2 $ 98.3 $ 101.3 Specialty Engineered Materials 19.8 20.3 81.5 48.7 Corporate 2.2 3.1 9.0 12.5 Depreciation & amortization $ 44.2 $ 48.6 $ 188.8 $ 162.5 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 84.0 $ 69.5 $ 358.2 $ 402.3 Specialty Engineered Materials 49.2 55.5 224.0 188.8 Corporate (45.9) (76.0) (196.6) (185.3) Other expense, net $ 4.3 $ (28.4) $ 5.8 $ (59.7) EBITDA $ 91.6 $ 20.6 $ 391.4 $ 346.1 Special items in EBITDA 22.3 86.8 110.4 162.5 EBITDA - excluding special items $ 113.9 $ 107.4 $ 501.8 $ 508.6 APM pro forma adjustments - 8 months 2022* — — — 83.1 Pro forma EBITDA $ 113.9 $ 107.4 $ 501.8 $ 591.7 * Pro forma adjustment for January - August 2022 APM results (period before Avient ownership). 3 AVNT February IR Presentation.pdf Avient corporation�investor presentation DISCLAIMER Slide Number 3 Creating a world-class�sustainable organization Top-tier sustainability performance�and recognition Slide Number 6 Slide Number 7 Portfolio transformation Slide Number 9 END MARKET observations�(% of company sales) Regional observations�(% of company sales) Slide Number 12 Slide Number 13 Slide Number 14 Slide Number 15 Slide Number 16 Slide Number 17 Slide Number 18 Slide Number 19 Slide Number 20 Slide Number 21 Slide Number 22 2023 segment, end market and Geography Color, Additives & Inks Specialty Engineered Materials Slide Number 26 AVNT Q4 2023 Earnings Presentation.pdf AVNT Q4 2023 Earnings Presentation_For Website_with Non-GAAP.pdf IR Deck - AVNT-2023.12.31 (2.12.24 9PM Milestone February 12 0905 pm).pdf Attachment

The additional funding and support of public EV charging stations are expected to have a direct effect on EV market growth. Cesa™ Flame Retardant Additives are available in standard or custom solutions that will comply with necessary technical and regulatory requirements. Learn more about Avient's colorant and additive solutions for EV charging equipment

The additional funding and support of public EV charging stations are expected to have a direct effect on EV market growth. Cesa™ Flame Retardant Additives are available in standard or custom solutions that will comply with necessary technical and regulatory requirements. Learn more about Avient's colorant and additive solutions for EV charging equipment

The additional funding and support of public EV charging stations are expected to have a direct effect on EV market growth. Cesa™ Flame Retardant Additives are available in standard or custom solutions that will comply with necessary technical and regulatory requirements. Learn more about Avient's colorant and additive solutions for EV charging equipment

PRODUCT BULLETIN Cesa™ Flame Retardant Additives Cesa™ Flame Retardant Additives allow manufacturers to design with increased confidence for critical flame and smoke applications. Using Cesa Flame Retardant Additives ensures that today’s stringent building safety codes and other regulations are met. Manufacturers have the ability to design and validate to meet UL criteria, and FM approval standards, including: • UL94 V-0 • UL94 HB • UL94 V-1 • UL94 5VA • UL94 V-2 • UL94 5VB • UL2335 • FM4998 NON-HALOGENATED CHOICES In addition to standard halogenated options, Cesa Flame Retardant Additives are also available as non-halogenated formulations.

Avoid Additives to Your Low Bleed Inks The addition of a catalyst is not effective in reducing dye migration and will reduce elongation/stretch of ink film.  The flash-curing unit has proven to be the biggest cause of dye migration, with electric IR dryers coming in second and gas dryers being the least problematic. 

Microsoft PowerPoint - Avient March IR - Fermium AVIENT CORPORATION (NYSE: AVNT) M A R C H 1 8 , 2 0 2 1 I R M E E T I N G S H O S T E D B Y F E R M I U M R E S E A R C H 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. Whether an additional line at an existing manufacturing plant, or a new facility in a growing region, we ramp-up quickly and cost-efficiently. 24 Capex / Revenue 2021E (%) AVIENT IS ASSET LIGHT Avient Specialty Other 2 3 2 2 3 3 3 4 3 3 4 4 4 5 5 5 5 7 7 8 23 t (E xc l. We are Avient.

Cesa™ Fiber Additives Antimicrobial Additives for Synthetic Fibers and Nonwovens Bacteria and other microorganisms can cause unpleasant odor, discoloration and even degradation of surface qualities in textiles and nonwovens. The Cesa™ Fiber Additives portfolio includes antimicrobial concentrates that help prevent these problems by limiting the growth of microorganisms. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application.

Avient Showcases High Performance and Sustainable Fiber Colorants and Additives at Yarn Expo Autumn Cesa™ Fiber Additives: including Non-Halogen Flame Retardant and Heat Preservation Solutions, offer long-term flame retardancy at low dosages to make fibers more resistant to ignition and control flame propagation, smoke, and heat generation without impacting color. It provides the ZDHC MRSL level 3 for Avient fiber color and additive solutions.