Q1 2023 (TOTAL COMPANY) $846 $829 $134 $143 17.3% (in millions) $0.63 $0.76 Adjusted EPS (in millions) + 7% + 21% Sales Adjusted EBITDA Adjusted EPS 6 - 2% 15.8% +150 bps Q1 2024 SEGMENT PERFORMANCE (COLORS, ADDITIVES & INKS) $537 $515 $91 $97 18.8% (in millions) (in millions) + 7% 7 - 4% 17.0% +180 bps • Year over year demand continues to improve for the segment but slowly due to continued weakness in Europe • Raw material deflation & cost reduction actions primary drivers of adjusted EBITDA growth and margin expansion of +180 bps vs Q1 2023 Q1 2024 SEGMENT PERFORMANCE (SPECIALTY ENGINEERED MATERIALS) $310 $314 $64 $73 23.2% (in millions) (in millions) + 14% 8 + 1% 20.8% +240 bps • Sales growth in defense end market offset by weaker demand in telecommunications end market • Raw material deflation and favorable mix impact from defense sales primary drivers of adjusted EBITDA growth and margin expansion of +240 bps vs Q1 2023 Q1 EBITDA BRIDGE (TOTAL COMPANY) 9 $ millions CAI: Price / Mix (1) Deflation 16 SEM: Price / Mix 4 Deflation 7 Net Price Benefit 26 Wage/Other Inflation (9) FX (2) Q1 2024 $143 Adjusted EBITDA Q1 2023 $ 134 Demand (6) • Positive net price benefit: o Favorable raw material deflation in both segments • Wage and other inflation more than offset cost reductions/synergies 2024 G U I DAN CE FY 2024 GUIDANCE Original Revised Adjusted EBITDA $505 to $535 million $510 to $535 million Adjusted EPS $2.40 to $2.65 $2.50 to $2.65 Interest Expense $105 to $110 million $105 million Adjusted Effective Tax Rate 23% to 25% 23% to 25% Capital Expenditures ~$140 million ~$140 million 11 Q2 2024: Adjusted EPS of $0.71 CE O “ TO P O F MI N D” FO CU S ARE AS AREAS OF FOCUS 13 +7% Drive Profitable Organic Top-Line Growth with Margin Expansion Amplify Innovation Build Leadership & Talent Pipeline AP P E N DI X 16 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% 36% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 19% 23%Industrial Building and 7% END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) 7% 18 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2023 REVENUE | $2 .0 BILLION 34% 37% 21% END MARKET REGION 19 34% 21% 15% Building & 1% Energy COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 BILLION 52% 35% 20 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) 21 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. 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 $ 49.4 $ 0.54 $ 20.8 $ 0.23 Special items, after-tax 5.5 0.06 22.3 0.24 Amortization expense, after-tax 14.9 0.16 15.1 0.16 Adjusted net income / EPS $ 69.8 $ 0.76 $ 58.2 $ 0.63 Three Months Ended Reconciliation to EBITDA and Adjusted EBITDA: 2024 2023 Net income from continuing operations – GAAP $ 49.7 $ 21.3 Income tax expense 16.8 7.7 Interest expense, net 26.6 28.8 Depreciation and amortization 44.3 50.5 EBITDA from continuing operations 137.4 108.3 Special items, before tax 6.2 27.3 Depreciation and amortization included in special items (0.5) (1.8) Adjusted EBITDA $ 143.1 $ 133.8 Adjusted EBITDA as a percent of sales 17.3 % 15.8 % 1 2024 2023 Sales: Color, Additives and Inks $ 515.3 $ 537.0 Specialty Engineered Materials 314.4 309.7 Corporate (0.7) (1.0) Sales $ 829.0 $ 845.7 Operating income: Color, Additives and Inks $ 74.8 $ 65.6 Specialty Engineered Materials 53.4 43.1 Corporate (34.2) (51.6) Operating income $ 94.0 $ 57.1 Depreciation & amortization: Color, Additives and Inks $ 21.9 $ 25.8 Specialty Engineered Materials 19.6 21.2 Corporate 2.8 3.5 Depreciation & amortization $ 44.3 $ 50.5 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 96.7 $ 91.4 Specialty Engineered Materials 73.0 64.3 Corporate (31.4) (48.1) Other (expense) income, net (0.9) 0.7 EBITDA from continuing operations 137.4 108.3 Special items, before tax 6.2 27.3 Depreciation and amortization included in special items (0.5) (1.8) Adjusted EBITDA $ 143.1 $ 133.8 Adjusted EBITDA as a percent of sales: Color, Additives and Inks 18.8 % 17.0 % Specialty Engineered Materials 23.2 % 20.8 % 2 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 and amortization included in special items (1.9) Adjusted EBITDA $ 501.8 3 AVNT Q1 2024 Earnings Presentation_For_Website_w_non-GAAP.pdf Avient corporation�first quarter 2024 results and 2024 financial guidance DISCLAIMER Slide Number 3 Regional demand trends-total company�Q1 Sales vs PY (Excluding FX) Slide Number 5 Slide Number 6 Slide Number 7 Slide Number 8 Slide Number 9 Slide Number 10 Slide Number 11 Slide Number 12 Slide Number 13 Slide Number 14 Slide Number 15 Slide Number 16 Slide Number 17 2023 segment, end market and Geography Color, Additives & Inks Specialty Engineered Materials Slide Number 21 IR Deck - AVNT-2024.03.31 5.06 11AM v2 (002).pdf Attachment

i) If Buyer is in default of performance of its obligations towards Seller and fails to provide adequate assurance of Buyer’s performance before the date of scheduled delivery; or (ii) if Seller has reasonable doubts with respect to Buyer’s performance of its obligations and Buyer fails to provide to Seller adequate assurance of Buyer’s performance before the date of scheduled delivery and in any case within thirty (30) calendar days of Seller’s demand for such assurance; or (iii) if Buyer becomes insolvent or unable to pay its debts as they mature, or goes into liquidation or any bankruptcy proceeding shall be instituted by or against Buyer or if a trustee or receiver or administrator is appointed for all or a substantial part of the assets of Buyer or if Buyer makes any assignment for the benefit of its creditors; or (iv) in case of non-compliance of Buyer with any law, statute ordinance, regulation, code or standard (“Laws and Standards”), then Seller may by notice in writing to Buyer, without prejudice to any of its other rights: (a) demand return and take repossession of any delivered Products which have not been paid for and all costs relating to the recovery of the Products shall be for the account of Buyer; and/or (b) suspend its performance or terminate its order confirmation for pending delivery of Products unless Buyer makes such payment for Products on a cash in advance basis or provides adequate assurance of such payment for Products to Seller.

i) If Buyer is in default of performance of its obligations towards Seller and fails to provide adequate assurance of Buyer’s performance before the date of scheduled delivery; or (ii) if Seller has reasonable doubts with respect to Buyer’s performance of its obligations and Buyer fails to provide to Seller adequate assurance of Buyer’s performance before the date of scheduled delivery and in any case within thirty (30) days of Seller’s demand for such assurance; or (iii) if Buyer becomes insolvent or unable to pay its debts as they mature, or goes into liquidation or any bankruptcy proceeding shall be instituted by or against Buyer or if a trustee or receiver or administrator is appointed for all or a substantial part of the assets of Buyer or if Buyer makes any assignment for the benefit of its creditors; or (iv) in case of non- compliance of Buyer with any law, statute ordinance, regulation, code or standard (“Laws and Standards”), then Seller may by notice in writing to Buyer, without prejudice to any of its other rights: (a) demand return and take repossession of any delivered Products which have not been paid for and all costs relating to the recovery of the Products shall be for the account of Buyer; and/or (b) suspend its performance or terminate its order confirmation for pending delivery of Products unless Buyer makes such payment for Products on a cash in advance basis or provides adequate assurance of such payment for Products to Seller.

For time-sensitive development projects, our NEUSoft Express offerings come in 14 standard colors, in neat or 20% barium sulfate-filled formulations, with a planned 14-day lead time to assist in accelerating your R&D process. Our formulation experts can also work with your design team to tailor a product that meets your specific color and performance needs. PANTONE MATCHING SYSTEM® © Pantone LLC, 2024 PMS 101C PMS White PMS 295C PMS 644C PMS 7441C PMS 2915C Colors may vary from the actual color shown.

PTFE Wire insulation CONSUMER & AEROSPACE MOLDERS M E T A L L I C - E F F E C T S U L F O N E S O L U T I O N • Metallic appearance • FDA-food contact compliance* • Resistant to repeated washing, steam sterilization, and chemical disinfection cycles • Easy processing to meet flexible design requests • Lightweight to support a reduction in carbon emissions • Created a variety of food contact-approved, brilliant metallic effect colors such as gold, silver, and bronze for optimal aesthetics • Ensured excellent mechanical performance after repeated steam sterilization and harsh chemical cleaning​ cycles • Offered low MOQ with flexible supply options Colorant Chromatics and BASF Ultrason® high-performance polymers in metallic colors KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION LIGHTWEIGHTING + COLORABILITY LEARN MORE © 2024, Avient Corporation.

Application Snapshot NIR _ REJOIN Final COSMETICS BRAND P E R S O N A L C A R E & C O S M E T I C S P A C K A G I N G • Excellent color performance in PCR resin • Combinable with functional additives • Parts manufactured with 100% PCR • Worked with customer to create circular packaging options with glamorous and striking special effects • Provided a solution that enabled added shine, ensuring the customer achieved beautiful packaging without compromising NIR detectability • Ensured the solution was available for many cosmetics packaging types, including bottles, make-up and caps OnColor™ NIR Black & Dark Sortable Colorants & Rejoin™ PCR Masterbatch for Polyolefins KEY REQUIREMENTS WHY AVIENT? https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-ir-sortable-black-recyclable-packaging

PowerPoint Presentation M E D I C A L C O N N E C T O R S • Ongoing production with no change to regular set up • Excellent processing and demolding performance • Color stability during processing • Excellent chemical and impact resistance • Enabled efficient ongoing production rates without changing any processing parameters • Safeguarded color stability and transparency during processing for optimal aesthetics • Ensured regulatory requirements for biocompatible ISO109931 and FDA were met • Provided a solution effective across a range of high-temperature polymers, including PEEK, PPSU, PES, PSU, PEI, LCP, and PPS Colorant Chromatics Evoluscend non- PFAS* high-temperature polymer mold release additive KEY REQUIREMENTS WHY AVIENT AVIENT SOLUTION PRODUCTIVITY + REGULATORY LEARN MORE ELECTRICAL COMPONENT OEM (*) A non-PFAS additive manufactured without non-intentionally added (NIA) PFAS or PTFE. (*) manufactured without intentionally added PFAS and without PTFE (1) refers to sulfone products only https://www.avient.com/products/polymer-additives/processing-enhancement-additives/colorant-chromatics-evoluscend-non-pfas-high-temperature-mold-release-additive Slide Number 1

PRODUCT BULLETIN OnColor™ Recovered Black OnColor™ Recovered Black is a black color concentrate that utilizes polymer material recyclate including pigments recovered from separate manufacturing processes. Used as a general purpose black, it is a versatile and cost-effective solution suitable for applications where a basic black colorant is required. An effective means of repurposing recyclate, OnColor R3 Recovered Black keeps waste from being sent to a landfill by reprocessing it into usable colorant.

Avient acquired the Clariant Color business on July 1, 2020 (the “Acquisition Date”). To provide comparable financial results, the Company references “pro forma” financial metrics, which include the business results of Clariant Color for periods prior to the Acquisition Date. We will deliver for our stakeholders through multiple value creation levers—many of which are unique to Avient: o Demand for sustainable solutions, healthcare, and composites, together with Clariant Color revenue synergies, that will drive long-term revenue growth in excess of GDP o Clariant color cost synergy capture will result in significant near-term benefit In addition, we remain committed to increasing annual dividends in line with earnings growth and opportunistically buying back shares, all while remaining modestly levered.

The featured technologies that follow are complemented by additional solutions at Avient, including internally lubricated polymers, reinforced composites, and pre-colored formulations and/or colorants in custom or standard firearms colors. PRODUCT SELECTION GUIDE AESTHETIC APPEAL Custom Colors, Special Effects, Color Stability SOLUTION: Custom Polymer Colorants, Pre-Colored Materials POSSIBILITIES: Grips, Stocks, Frames, Magazine Bases DYNAMIC COMFORT Shock Absorption, Vibration Damping SOLUTION: Thermoplastic Elastomers POSSIBILITIES: Recoil Pads, Straps TACTILE EXPERIENCE Soft Touch, Wet Grip SOLUTION: Thermoplastic Elastomers POSSIBILITIES: Grips, Slides, Triggers PERFORMANCE & FUNCTION Custom Weight, Toughness, Reduced Machining, Metal Replacement, Thermal Management and Stability, Wear Resistance SOLUTION: Structural Reinforced Formulations, Super Tough Formulations, Composite Heat Release Technology, High-Density Modified Formulations, Internally Lubricated Formulations POSSIBILITIES: Stocks, Frames, Barrels 1.844.4AVIENT www.avient.com Copyright © 2024, Avient Corporation. ENGINEERED POLYMER SOLUTIONS - FEATURES & CHARACTERISTICS Resin Nymax™ Formulations Characteristics Applications PA6 GF 600 A 14 Natural 14% Glass Reinforced Stocks, Frames, Receivers, Handguards, Forearms, Picatinny Rails, Grips PA6 GF 600 A 33 Natural 33% Glass Reinforced, Heat Stabilized PA6 NM6000-0026 HI BK 33% Glass Reinforced, Toughened PA6 GF 600 A 60 UV Black 60% Glass Reinforced, Heat Stabilized PA6 GF 600 A 33 Black 28 V 33% Glass Reinforced, Heat Stabilized, UV PA6 1010 A Black 13 Super Toughened, Heat Stabilized PA6 1010 A Natural Super Toughened, Heat Stabilized PA6 NM6000-0027 ST Black Super Toughened PA6 NM6000-00013 HS UV Black 50% GF, High Flow PA6 PA66 NM6600-0018 HI HS 14 Nat 14% Glass Reinforced, Toughened, Heat Stabilized PA66 GF 1200 A 33 HS Black 22 33% Glass Reinforced, Heat Stabilized PA66 GF 1200 A 33 HS Natural 33% Glass Reinforced, Heat Stabilized PA66 NM6600-0019 HI HS 33 Nat 33% Glass Reinforced, Toughened, Heat Stabilized PA66 NM6600-0020 HI HS 43 Nat 43% Glass Reinforced, Heat Stabilized PA66 1200 A L Natural Unreinforced PA66 1200 A ZIP 22 Natural Unreinforced PA66 NM6600-0021 ST Black Super Toughened PA66 NM 1200 MT HS Black Toughened, Heat Stabilized PA66 NM 1200 MT HS Natural Toughened, Heat Stabilized Specialty Products Color Characteristics Applications Edgetek™ ET6200-0031 Black Black 20% Glass Reinforced PA12 Stocks, Frames, Receivers, Handguards, Forearms, Picatinny Rails, Bolt Carriers, Grips Gravi-Tech™ X GT 33991-05A-01-3 Copper 3sg, PA6, Copper Gravi-Tech™ X GT-30197-001-P4 Gray 4sg, PA610, Tungston Gravi-Tech™ GT 6400-0001 GRV 5.0 Black 5sg, PA610, Tungston Thermoplastic Elastomers Durometer OM Substrate Color Characteristics Applications OnFlex™ AF 7210 25-90A PP Black/Natural General Purpose with UV Stabilizer Grips, Recoil Pads, Gun Straps Dynaflex™ G7900 30-90A PP Black/Natural General Purpose Versaflex™ XP 2850 50A PP Natural Wet Grip Technology Versaflex™ VDT 4202-40 40A PP Black/Natural Vibration Damping Versaflex™ VDT 5120-40 40A PA Black/Natural Vibration Damping Versaflex™ OM6059-9 60A PA Black High Flow Versaflex™ OM6258 60A PA Black/Natural Enhanced Bond