Even after wash- ing the surface with detergent and water with 5 repetitions, the antistatic effect remains unchanged. 0 500 1,000 1,500 2,000 2,500 3,000 0 20 40 60 80 100 Vo lta ge (V ) Time (s) PP talc filled 5% Cesa Stat OCA0025695 5% Cesa Stat OCA0025695 wash end www.avient.com Copyright © 2023, Avient Corporation.

A laser mark remains legible even after many years.

A recording of the webcast and the slide presentation will be available at avient.com/investors/events-presentations shortly after the live webcast.

A reconciliation of these measures to their most directly comparable GAAP measures is provided in the tables below. 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 33.6 $ 0.36 $ 22.1 $ 0.24 Special items, after-tax 21.8 0.24 19.6 0.21 Amortization expense, after-tax 14.8 0.16 16.2 0.18 Adjusted net income / EPS $ 70.2 $ 0.76 $ 57.9 $ 0.63 Three Months Ended Reconciliation to EBITDA and Adjusted EBITDA: 2024 2023 Net income from continuing operations – GAAP $ 33.8 $ 22.3 Income tax expense 11.2 10.4 Interest expense, net 26.6 29.4 Depreciation & amortization 44.9 47.6 EBITDA from continuing operations $ 116.5 $ 109.7 Special items, before tax 28.1 21.7 Interest expense included in special items (1.0) — Depreciation & amortization included in special items (0.3) (0.1) Adjusted EBITDA $ 143.3 $ 131.3 Adjusted EBITDA as a percent of sales 16.9 % 15.9 % 1 2024 2023 Sales: Color, Additives and Inks $ 542.0 $ 524.5 Specialty Engineered Materials 308.1 300.8 Corporate (0.4) (0.9) Sales $ 849.7 $ 824.4 Operating income: Color, Additives and Inks $ 86.1 $ 68.0 Specialty Engineered Materials 42.8 39.7 Corporate (56.4) (45.4) Operating income $ 72.5 $ 62.3 Depreciation & amortization: Color, Additives and Inks $ 21.8 $ 25.7 Specialty Engineered Materials 20.8 19.9 Corporate 2.3 2.0 Depreciation & amortization $ 44.9 $ 47.6 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 107.9 $ 93.7 Specialty Engineered Materials 63.6 59.6 Corporate (54.1) (43.4) Other expense, net (0.9) (0.2) EBITDA from continuing operations 116.5 109.7 Special items, before tax 28.1 21.7 Interest expense included in special items (1.0) — Depreciation & amortization included in special items (0.3) (0.1) Adjusted EBITDA $ 143.3 $ 131.3 Adjusted EBITDA as a percent of sales: Color, Additives and Inks 19.9 % 17.9 % Specialty Engineered Materials 20.6 % 19.8 % 2 Year Ended December 31, 2023 Operating income: Color, Additives and Inks $ 259.9 Specialty Engineered Materials 142.5 Corporate (205.6) Operating income $ 196.8 Depreciation & amortization: Color, Additives and Inks $ 98.3 Specialty Engineered Materials 81.5 Corporate 9.0 Depreciation & amortization $ 188.8 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 358.2 Specialty Engineered Materials 224.0 Corporate (196.6) Other income, net 5.8 EBITDA from continuing operations 391.4 Special items, before tax 114.6 Interest expense included in special items (2.3) Depreciation & amortization included in special items (1.9) Adjusted EBITDA $ 501.8 3 Avient Q2 2024 Webcast Slides_for website_with non-GAAP_8_5.pdf IR Deck - AVNT-2024.06.30 - 8.02.24 1130AM.pdf Attachment Avient Q2 2024 Webcast Slides_for website_with non-GAAP.pdf AVNT cover slide.pdf

This technology offers manufacturing efficiencies versus other crosslinking methods: • Reduction in logistics management: No secondary steps after manufacturing; no need for E-beam radiation for effective crosslinking • Rapid ambient curing: Typically in less than 15 days depending on the climatic condition, wall thickness and catalyst level • No additional capital investment: The material can be processed on a conventional extrusion line • Easy handling: ECCOH XL 8001 is used with 2.5–5% of catalyst masterbatch • No pre-drying: No need to pre-dry the material if it is stored correctly PRODUCT BULLETIN KEY CHARACTERISTICS Avient’s ECCOH line of highly flame retardant, non-halogenated materials limits the emission of corrosive gases when burning.

ColorMatrix rePrize must never be left in an idle, hot extruder and the extruder must be purged after use.

Sustainability Spotlight Recycle Solutions KEY CHARACTERISTICS • Designed for polyolefin recycling and to enhance circularity • Protects polyolefins against degradation caused by oxygen and heat during processing • Provides improved stability against oxygen degradation and discoloration • Stabilizes the polymer to reduce creation of new gels and black spots • Excellent performance at low dosage levels MARKETS & APPLICATIONS • Recycled polyolefins • Packaging, consumer & others • High-value polyolefin applications with recycled material content • Virgin polymers which will be recycled after the use phase Copyright © 2022, Avient Corporation.

Solutions that promote UV stability, in order to retain flame retardancy efficacy after sun exposure, are also available.

After three days of exposure to the hospital disinfectants, a 20x magnified image was taken of each set of bars to demonstrate the effect of the chemical. 

KEY CHARACTERISTICS • 100% visible light blocking for monolayer PET containers • Enables versatile container designs and shapes for ease of pouring and product differentiation • Suitable for re-sealable containers or containers that are stored flat after opening • Offers package lightweighting with no reduction in light blocking performance • Lowers system cost compared to other rigid packaging PRODUCT BULLETIN Copyright © 2024, Avient Corporation.