FX +4.6% FX -1.5% Total Avient +3.1% Note: Regional Sales Percentages exclude impact of foreign exchange Q2 2024 SEGMENT PERFORMANCE (COLOR, ADDITIVES & INKS) $525 $542 $94 $108 19.9% (in millions) (in millions) 10 17.9% +200 bps * Adjusted EBITDA Margin % • Organic sales growth in all regions led by Americas • Raw material deflation combined with cost reduction actions drove EBITDA margin expansion + 3% (+5% excluding FX) + 15% (+17% excluding FX) Q2 2024 SEGMENT PERFORMANCE (SPECIALTY ENGINEERED MATERIALS) $301 $308 $60 $64 20.6% (in millions) (in millions) 11 19.8% +80 bps * Adjusted EBITDA Margin % • Sales growth in consumer, healthcare and building & construction end markets offset by weaker demand in telecommunications • EBITDA margin expansion driven by positive end market mix as well as raw material deflation + 2% (+4% excluding FX) + 7% (+8% excluding FX) 2024 G U IDA N CE FY 2024 GUIDANCE Previous (May 7) Current Adjusted EBITDA $510 to $535 million $515 to $540 million Adjusted EPS $2.50 to $2.65 $2.55 to $2.70 Interest Expense $105 million $105 million Adjusted Effective Tax Rate 23% to 25% 23% to 25% Capital Expenditures ~$140 million ~$140 million 13 Q3 2024: Adjusted EPS of $0.62 14 Highlights • Provides performance updates on 2030 Sustainability Goals • Reduced company’s Scope 1 & 2 GHG emissions by 48% since 2019 • Highlights ESG performance ratings, certifications, and awards, including recent upgrades by Ecovadis to Gold and CDP to A- • Reflects Great Place to Work® culture focused on health, safety and employee engagement 2023 SUSTAINABILITY REPORT 14 Sustainability for a Better Tomorrow 2023 SUSTAINABILITY REPORT 15 • Investor Day to be held December 4, 2024 in New York, NY • The focus will be to do a deep dive on the Company’s strategy • Further details to be communicated 2024 AVIENT INVESTOR DAY AP P EN D IX 18 Performance Additives 15% Pigments TiO2 Dyestuffs Polyethylene 10%Nylon Polypropylene Styrenic Block Copolymer Other Raw Materials 38% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials RAW MATERIAL BASKET SEGMENT DATA U.S. & Canada 41% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 19% 23%Industrial Building and END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) 20 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2023 REVENUE | $2 .0 B ILL ION 34% 37% 21% END MARKET REGION 21 34% 21% 15% Building & 1% Energy COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 B ILL ION 52% 35% 22 6%Industrial 12% 10% Defense Building & END MARKET REGION SPECIALTY ENGINEERED MATERIALS 32% 26% Building & 6% 2% Defense 1% (18% of sales) 2023 AVIENT REGIONAL SALES 25% Building & (36% of sales)Transportation 22% Building & 12% 6% US & Canada (41% of sales) 59% 22% Building & LATAM (5% of sales) 23 BY END MARKET Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

Liquid Color Concentrates and Dosing ColorMatrix™ Liquid Color Concentrates achieved the optimal flowability of liquid white and liquid orange, ensuring consistent color through suitable mixing with other colorants ColorMatrix™ Liquid Color Concentrates improved the customer’s workplace environment by installing a new tote liquid supply system

TEXTILE MANUFACTURER A U T O M O T I V E A I R B A G C O A T E D F A B R I C • Rapid development of color-coated, high-performance fabric for global OEM airbag system • Custom-colored silicone paste dispersion for liquid silicone rubber (LSR) • Excellent dispersion with color consistency to meet regulatory demands and monitor coating performance • Offered specialized customer support to provide materials quickly while working with all stakeholders • Provided customizable color-matching helping to reinforce brand equity • Delivered exceptional quality and regulatory knowledge to adhere to industry safety standards and track internal performance Silcopas Silicone Paste Colorants KEY REQUIREMENTS WHY AVIENT? LEARN MORE https://www.avient.com/products/polymer-colorants/colorant-dispersions/colorants-liquid-silicone-rubber Slide 1: Textile manufacturer

Liquid Silicone Rubber (LSR) Liquid Silicone Rubber (LSR) is a silicone based product that is supplied as a liquid that is cured with heat to form a permanent shape. Liquid colorants will produce transparent, translucent and tinted color.

Liquid Silicone Rubber (LSR) Liquid Silicone Rubber (LSR) is a silicone based product that is supplied as a liquid that is cured with heat to form a permanent shape. Liquid colorants will produce transparent, translucent and tinted color.

DISSOLUTION ET LIQUIDATION. LIQUIDATION En cas de dissolution de la société, la liquidation s'opère par les soins du conseil d'administration en fonction à cette époque agissant en qualité de Comité de Liquidation. ASSEMBLEES DE LIQUIDATION.

Liquid and masterbatch colorants to provide shelf appeal Liquid Color Concentrates and Dosing ColorMatrix™ Liquid Color Concentrates achieved the optimal flowability of liquid white and liquid orange, ensuring consistent color through suitable mixing with other colorants

U-PVC WALL CEILING PRODUCER C O R R U G A T E D S H E E T • Achieved the beige color target with a uniform coloring process, ensuring a high- quality sheet appearance • Adjusted color strength in sheet production using online controls at the pump controller • Maintained a clean operation by eliminating powdery pigments in the workplace ColorMatrix Liquid Color Concentrates WHY AVIENT AVIENT SOLUTION PRODUCTIVITY + SAFETY LIQUID COLOR CONCENTRATES AND DOSING | AVIENTLEARN MORE • Reduces particulates from TiO2 bulk pigment use in the workplace • Color consistency and good surface finish • Maintain good mechanical properties and shore hardness of the extruded sheet • Compliance with heavy metal-free and RoHS regulations KEY REQUIREMENTS Copyright © 2025, Avient Corporation.

LIME-GOLD 8520C GOLD GOLD DUST 8005C

BAMBOO LT GOLD 726 BAMBOO LT GOLD 719 BAMBOO DK GOLD 726