Key misconceptions and common practices that keep processors from maximizing their color operations End-use applications are key to determining whether to use liquid or solid colorants, with the focus on the coloring method that will produce the highest quality finished parts.

The connector company’s product development engineers established three key criteria for the polymer needed to meet the cost and performance needs of the new connector: After this exhaustive evaluation, Avient’s solution was selected for two key reasons:

Any forward-looking statement speaks only as of the date on which such statement is made, and we undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise. The non-GAAP financial measures include: Adjusted Earnings Per Share, Adjusterd Free Cash Flow, Adjusted EBITDA and Adjusted EBITDA margins. Three Months Ended September 30, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 38.2 $ 0.41 $ 5.1 $ 0.06 Special items, after-tax 6.6 0.07 32.0 0.35 Amortization expense, after-tax 15.0 0.16 15.2 0.16 Adjusted net income / EPS $ 59.8 $ 0.65 $ 52.3 $ 0.57 (1) Per share amounts may not recalculate from figures presented herein due to rounding Three Months Ended September 30, Reconciliation to EBITDA and Adjusted EBITDA: 2024 2023 Net income from continuing operations – GAAP $ 38.7 $ 5.1 Income tax expense (benefit) 11.3 (0.1) Interest expense, net 26.9 30.3 Depreciation & amortization 45.1 46.4 EBITDA from continuing operations $ 122.0 $ 81.7 Special items, before tax 9.7 43.2 Interest expense included in special items (1.3) (2.2) Depreciation & amortization included in special items (0.4) — Adjusted EBITDA $ 130.0 $ 122.7 Adjusted EBITDA as a percent of sales 15.9 % 16.3 % 1 Three Months Ended September 30, 2024 2023 Sales: Color, Additives and Inks $ 521.5 $ 486.5 Specialty Engineered Materials 294.6 267.9 Corporate (0.9) (0.7) Sales $ 815.2 $ 753.7 Operating income: Color, Additives and Inks $ 75.5 $ 64.5 Specialty Engineered Materials 36.4 30.3 Corporate (34.7) (60.5) Operating income $ 77.2 $ 34.3 Depreciation & amortization: Color, Additives and Inks $ 21.9 $ 24.6 Specialty Engineered Materials 20.7 20.5 Corporate 2.5 1.3 Depreciation & amortization $ 45.1 $ 46.4 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 97.4 $ 89.1 Specialty Engineered Materials 57.1 50.8 Corporate (32.2) (59.2) Other (expense) income, net (0.3) 1.0 EBITDA from continuing operations $ 122.0 $ 81.7 Special items, before tax 9.7 43.2 Interest expense included in special items (1.3) (2.2) Depreciation & amortization included in special items (0.4) — Adjusted EBITDA $ 130.0 $ 122.7 Adjusted EBITDA as a percent of sales: Color, Additives and Inks 18.7 % 18.3 % Specialty Engineered Materials 19.4 % 19.0 % 2 Year Ended December 31, 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS Net income from continuing operations attributable to Avient shareholders $ 75.8 $ 0.83 Special items, after-tax 79.3 0.86 Amortization expense, after-tax 61.5 0.67 Adjusted net income / EPS $ 216.6 $ 2.36 Adjusted Free Cash Flow Calculation December 31, 2023 Cash provided by operating activities $ 201.6 Capital expenditures (119.4) Free cash flow 82.2 Taxes paid on gain on sale of business 104.1 Adjusted free cash flow $ 186.3 Year Ended December 31, 2023 Sales: Color, Additives and Inks $ 2,007.4 Specialty Engineered Materials 1,138.2 Corporate (2.8) Sales $ 3,142.8 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 Adjusted EBITDA as a percent of sales 16.0 % 3 Avient M11 Investor Presentation.pdf IR Deck - AVNT-2024.09.30 (M11) - 11.05.24 11AM.pdf Attachment

We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise. We present Specialty Platform sales, gross margin, selling and administration, and operating income because management believes that this is useful information to investors by highlighting our collective progress in advancing our specialization strategy.

PVC EDGE BANDING MANUFACTURER E X T R U S I O N S H E E T & S T R A P • Meet the diverse coefficient of friction (CoF) requirements across various film structures and compositions for a wide range of applications • Improve the speed of slip blooming and ensure consistent slip performance post-film production • Preserve excellent optical and mechanical properties • Compliance with food regulations for end packaging in food sealant applications • Achieved the optimal flowability of liquid white and liquid orange, ensuring consistent color through suitable mixing with other colorants • Ensured lot-to-lot consistency with DE value of less than 0.5 • Supported customers in achieving stable and high-quality coloration during their PVC processing ColorMatrix Liquid Color Concentrates KEY REQUIREMENT WHY AVIENT AVIENT SOLUTION FUNCTIONALITY + COMPLIANCE Avient Corporation 1 • Meet the diverse coefficient of friction (CoF) requirements across various film structures and compositions for a wide range of applications • Improve the speed of slip blooming and ensure consistent slip performance post-film production • Preserve excellent optical and mechanical properties • Compliance with food regulations for end packaging in food sealant applications KEY REQUIREMENT • Standard colorant for internal color matching in PVC sheet applications • Manufactured with phthalate-free plasticizer • Good thermal stability and compatibility with PVC resin for a wide rang of color index choices • Compliance with heavy metal-free and RoHS regulations LIQUID COLOR CONCENTRATES AND DOSING | AVIENTLEARN MORE KEY REQUIREMENTS Copyright © 2025, Avient Corporation.

U-PVC PIPE & FITTING PRODUCER P I P E & F I T T I N G • Meet the diverse coefficient of friction (CoF) requirements across various film structures and compositions for a wide range of applications • Improve the speed of slip blooming and ensure consistent slip performance post-film production • Preserve excellent optical and mechanical properties • Compliance with food regulations for end packaging in food sealant applications • Improved the customer’s workplace environment by installing a new tote liquid supply system • Enhanced color consistency and reduced production wastage from pigment speck and streak issues • Complied with strict regulatory controls for potable pipe requirements ColorMatrix Liquid Color Concentrates KEY REQUIREMENT WHY AVIENT AVIENT SOLUTION PRODUCTIVITY + COMPLIANCE Avient Corporation 1 • Meet the diverse coefficient of friction (CoF) requirements across various film structures and compositions for a wide range of applications • Improve the speed of slip blooming and ensure consistent slip performance post-film production • Preserve excellent optical and mechanical properties • Compliance with food regulations for end packaging in food sealant applications KEY REQUIREMENT • Standard colorant to apply for internal color matching in PVC sheet applications • Phthalate free plasticizer class as hazardous healthy control requirement • Good thermal stability and compatibility in PVC resin of color index choices • Compliance with Heavy metal free and RoHS regulation KEY REQUIREMENT• Support the mass production capacity of white pipe extrusion • Reduces particulates from TiO2 bulk pigment use in the workplace • Ensure excellent pigment dispersion to meet mechanical pipe properties over an extensive useful life • Compliance with NSF and UL regulations for end application requirements in the building and construction industry LIQUID COLOR CONCENTRATES AND DOSING | AVIENTLEARN MORE KEY REQUIREMENTS Copyright © 2025, Avient Corporation.

Market Size and Drivers In 2020, the global rPET market was valued at $8.56 billion with Asia Pacific as the largest regional market, accounting for over 45% revenue share. STAGE SOLUTION CAPABILITIES Polymer Recycling ColorMatrix™ rePrize™ - Increases intrinsic viscosity to enhance use of recycled PET - Reduces yellowing and decontamination Materials Selection ColorMatrix™ Joule™ RHB - Reduces the energy required and costs - Ensures minimal yellowing and light-weighting Preform Molding ColorMatrix™ AAzure™ - Reduces yellowing and acetaldehyde levels for improved bottled strength Preform Molding ColorWorks™ - Provides a range of possible colors for end products based on the color of the rPET available for use Preform Molding Rejoin™ PCR Masterbatch - Combines pigments and functional additives with a 100% PCR carrier for polyolefins - Enables packaging that is 100% PCR Bottle Blowing & Filling ColorMatrix™ Optica™ - Excellent acid & thermal stability to reduce yellowing and create a haze-free container Bottle Blowing & Filling ColorMatrix™ Smartheat RHC™ Process Aid - Optimizes weight distribution to increase bottle strength and quality - Reduces energy required and costs Sales, Distribution, Consumption ColorMatrix™ Amosorb™ - Scavenges oxygen to extend the shelf life and preserve the freshness of food or beverages within container Sales, Distribution, Consumption ColorMatrix™ Ultimate™ UV - Blocks ultraviolet light transmission to protect the container and its contents - Enables light-weighting Sales, Distribution, Consumption ColorMatrix™ Lactra™ - High-performance light blocking that extends the shelf life of light-sensitive dairy products Taking the Next Steps Move Your Sustainability to the Next Level Because sustainable material solutions and technology are evolving at the speed of life, it takes fresh thinking, agile R & D, and imaginative use of next-generation materials to bring life-changing products to market safely and quickly.

Seller warrants good and free title in the Product and that the Product will conform to Seller’s published specifications, if any exist, or to such other quality standards and/or measurements the parties have attached to this document or subsequently have agreed upon in writing. If Seller determines that Buyer’s financial responsibility has become impaired or otherwise unsatisfactory to Seller, Seller may require advance cash payments, COD, shorter terms, and/or the posting of satisfactory security by Buyer, and may withhold shipments until Buyer complies. 5. Either party may suspend performance hereunder (except to pay for Product already received) in the event of: (1) acts of God, fire, explosion, flood, hurricanes; (2) strikes, lockouts or other industrial disturbances or riots; (3) war, declared or undeclared, or acts of terrorism; (4) compliance with any Federal, state, provincial, municipal or military law, regulation, order, or rule, foreign or domestic, including priority, rationing, allocation or preemption orders or regulations, or cancellation of Seller’s or Buyer’s license to operate its plant; (5) catastrophic failure of facilities used to manufacture Product, interruption or shortage of transportation, labor, power, fuel or raw materials; (6) total or partial shutdown due to Seller’s normal plant turnaround; or (7) any other cause or causes of any kind or character reasonably outside the control of the party failing to perform, whether similar or dissimilar from the enumerated causes (a “force majeure”).

Gajewski holds a Bachelor of Arts degree in Organizational Psychology from Bowling Green State University and is a licensed Professional in Human Resources.

Gajewski holds a Bachelor of Arts degree in Organizational Psychology from Bowling Green State University and is a licensed Professional in Human Resources.