Sustainability Spotlight Recycle Solutions WHAT IT DOES • Works according to recycling protocols • Simulates grinding, washing, conversion, and re-extrusion • Performs testing on final products such as bottles, sheets, films, or test bars • Applies in-depth analytical investigations KEY BENEFITS • Provides a portfolio of solutions that are field- tested for recycling • Can run recycling trials according to standard recycling protocols • Helps enable customers’ recyclability and sustainability goals • Screens and evaluates additive and colorant systems in the recycling process • Supports R&D work to solve major issues in the recycling process • Provides a collaboration platform for customers and value chain partners • Advances the circular economy 1.844.4AVIENT www.avient.com Copyright © 2022, Avient Corporation.

Thermoplastic Composite Innovation Cell Injection and Compression Overmolding HARNESS THE VERSATILITY Are you working on a project that would benefit from added reinforcement, reduced weight, material reduction or part consolidation?

Microsoft PowerPoint - Recast Financial Information for Pension Standard v13 2013 to 2017 Recast GAAP Financial Information for the Adoption of ASU 2017-07: Presentation of Net Periodic Pension and Postretirement Benefit Cost April 26, 2018 POLYONE CORPORATION 2 Reflects quarterly GAAP financial adjustments for the adoption of ASU 2017-07.

In addition, and again for comparability, adjusted EPS also excludes the benefit of interest income earned on cash raised in connection with the February share issuance.

• Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: � Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; � The financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability; � The speed and extent of an economic recovery, including the recovery of the housing market; � The amount and timing of repurchases, if any, of PolyOne common shares and our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; � The effect on foreign operations of currency fluctuations, tariffs, and other political, economic and regulatory risks; Changes in polymer consumption growth rates in the markets where we conduct business; Forward Looking Statements � Changes in polymer consumption growth rates in the markets where we conduct business; � Changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online; � Fluctuations in raw material prices, quality and supply and in energy prices and supply; � Production outages or material costs associated with scheduled or unscheduled maintenance programs; � Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; � An inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions, employee productivity goals, and an inability to raise or sustain prices for products or services; � The ability to successfully integrate acquired companies into our operations, retain the management teams of acquired companies, and retain relationships with customers of acquired companies, including without limitation, Color Matrix Group, Inc.

Q1 2023 (TOTAL COMPANY) $846 $829 Q1 23 Q1 24 $134 $143 Q1 23 Q1 24 17.3% Sales Adjusted EBITDA (in millions) $0.63 $0.76 Q1 23 Q1 24 Adjusted EPS (in millions) + 7% + 21% Sales Adjusted EBITDA Adjusted EPS 6 - 2% 15.8% +150 bps * * * Adjusted EBITDA Margin % Q1 2024 SEGMENT PERFORMANCE (COLORS, ADDITIVES & INKS) $537 $515 Q1 23 Q1 24 $91 $97 Q1 23 Q1 24 18.8% Sales Adjusted EBITDA (in millions) (in millions) + 7% Sales Adjusted EBITDA 7 - 4% 17.0% +180 bps * * * Adjusted EBITDA Margin % • 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 Q1 23 Q1 24 $64 $73 Q1 23 Q1 24 23.2% Sales Adjusted EBITDA (in millions) (in millions) + 14% Sales Adjusted EBITDA 8 + 1% 20.8% +240 bps * * * Adjusted EBITDA Margin % • 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 13% TiO2 9% Dyestuffs 2% Polyethylene 10%Nylon 5% Polypropylene 4% Styrenic Block Copolymer 4% 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% EMEA 36% Asia 18% Latin America 5% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 19% Packaging 23%Industrial 16% Building and Construction 9% Telecommunications 4% Energy 5% Defense 7% END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) Transportation 10% Healthcare 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 US & Canada 34% EMEA 37% Asia 21% Latin America 8% END MARKET REGION 19 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 9% Building & Construction 10% Telecommunications 1% Energy 2% COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 BILLION US & Canada 52% EMEA 35% Asia 13% 20 Packaging 5% Consumer 16% Healthcare 6%Industrial 16% Transportation 12% Telecommunications 9% Energy 10% Defense 18% Building & Construction 8% END MARKET REGION SPECIALTY ENGINEERED MATERIALS Packaging 32% Consumer 26% Healthcare 9% Industrial 13% Building & Construction 6% Telecommunications 2% Energy 2% Defense 1% Asia (18% of sales) Transportation 9% 2023 AVIENT REGIONAL SALES Packaging 25% Consumer 13% Healthcare 5% Industrial 18% Building & Construction 9% Energy 5% Defense 8% EMEA (36% of sales)Transportation 13% Packaging 13% Consumer 22% Healthcare 10% Industrial 16% Building & Construction 12% Energy 6% Defense 8% US & Canada (41% of sales) Transportation 9% Packaging 59% Consumer 22% Healthcare 2% Industrial 8% Building & Construction 4% LATAM (5% of sales) Transportation 5% Telecommunications 4% Telecommunications 4% 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.

EBITDA 358 384 FY 2023 FY 2024 • Driven by new applications for drug delivery and building & construction as well as demand recovery in packaging and consumer • Adjusted EBITDA margin expansion driven by higher sales and net price benefit EXCL. Three Months Ended December 31, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 48.3 $ 0.52 $ 27.8 $ 0.30 Special items, after-tax (18.0) (0.20) 5.4 0.06 Amortization expense, after-tax 14.8 0.17 15.0 0.16 Adjusted net income / EPS $ 45.1 $ 0.49 $ 48.2 $ 0.52 (1) Per share amounts may not recalculate from figures presented herein due to rounding Year Ended December 31, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 169.5 $ 1.84 $ 75.8 $ 0.83 Special items, after-tax 15.9 0.17 79.3 0.86 Amortization expense, after-tax 59.5 0.65 61.5 0.67 Adjusted net income / EPS $ 244.9 $ 2.66 $ 216.6 $ 2.36 (1) Per share amounts may not recalculate from figures presented herein due to rounding Three Months Ended December 31, Year Ended December 31, Reconciliation to EBITDA and Adjusted EBITDA: 2024 2023 2024 2023 Net income from continuing operations – GAAP $ 48.5 $ 27.6 $ 170.7 $ 76.3 Income tax expense (benefit) 14.8 (7.0) 54.1 11.0 Interest expense 25.5 26.8 105.6 115.3 Depreciation and amortization from continuing operations 45.4 44.2 179.7 188.8 EBITDA from continuing operations $ 134.2 $ 91.6 $ 510.1 $ 391.4 Special items, before tax (23.9) 22.4 20.1 114.6 Interest expense included in special items — (0.1) (2.3) (2.3) Depreciation and amortization included in special items (0.3) — (1.5) (1.9) Adjusted EBITDA $ 110.0 $ 113.9 $ 526.4 $ 501.8 Adjusted EBITDA as a percent of sales 14.7 % 15.8 % 16.2 % 16.0 % 1 Three Months Ended December 31, Year Ended December 31, 2024 2023 2024 2023 Sales: Color, Additives and Inks $ 467.7 $ 459.4 $ 2,046.5 $ 2,007.4 Specialty Engineered Materials 279.7 259.8 1,196.8 1,138.2 Corporate (0.9) (0.2) (2.9) (2.8) Sales $ 746.5 $ 719.0 $ 3,240.4 $ 3,142.8 Gross margin: Color, Additives and Inks $ 152.6 $ 148.3 $ 681.1 $ 631.2 Specialty Engineered Materials 84.2 78.1 374.9 341.8 Corporate 22.7 (17.5) 0.7 (80.5) Gross margin $ 259.5 $ 208.9 $ 1,056.7 $ 892.5 Selling and administrative expense: Color, Additives and Inks $ 92.8 $ 86.5 $ 384.9 $ 371.3 Specialty Engineered Materials 49.6 48.7 207.7 199.3 Corporate 31.5 30.6 134.8 125.1 Selling and administrative expense $ 173.9 $ 165.8 $ 727.4 $ 695.7 Operating income: Color, Additives and Inks $ 59.8 $ 61.8 $ 296.2 $ 259.9 Specialty Engineered Materials 34.6 29.4 167.2 142.5 Corporate (8.8) (48.1) (134.1) (205.6) Operating income $ 85.6 $ 43.1 $ 329.3 $ 196.8 Depreciation and amortization: Color, Additives and Inks $ 21.9 $ 22.2 $ 87.5 $ 98.3 Specialty Engineered Materials 21.0 19.8 82.1 81.5 Corporate 2.5 2.2 10.1 9.0 Depreciation and amortization $ 45.4 $ 44.2 $ 179.7 $ 188.8 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 81.7 $ 84.0 $ 383.7 $ 358.2 Specialty Engineered Materials 55.6 49.2 249.3 224.0 Corporate (6.3) (45.9) (124.0) (196.6) Other income, net 3.2 4.3 1.1 5.8 EBITDA from continuing operations $ 134.2 $ 91.6 $ 510.1 $ 391.4 Special items, before tax (23.9) 22.4 20.1 114.6 Interest expense included in special items — (0.1) (2.3) (2.3) Depreciation and amortization included in special items (0.3) — (1.5) (1.9) Adjusted EBITDA $ 110.0 $ 113.9 $ 526.4 $ 501.8 2 Year Ended December 31, Adjusted Free Cash Flow Calculation 2024 2023 Cash provided by operating activities $ 256.8 $ 201.6 Taxes paid on gain on sale of business — 104.1 One-time payout associated with deferred compensation plans 20.8 — Adjusted cash provided by operating activities $ 277.6 $ 305.7 Capital expenditures (121.9) (119.4) Adjusted free cash flow $ 155.7 $ 186.3 Three Months Ended March 31, 2024 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 49.4 $ 0.54 Special items, after-tax 5.5 0.06 Amortization expense, after-tax 14.9 0.16 Adjusted net income / EPS $ 69.8 $ 0.76 (1) Per share amounts may not recalculate from figures presented herein due to rounding 3 AVNT February Investor Presentation_2_25.pdf Avient Investor Presentation - February 2025_w_Non-GAAP.pdf Avient February 2025 Investor Presentation_w_non-GAAP.pdf Non-GAAP- IR Deck - AVNT-2024.12.31 2.06.25 12PM.pdf Attachment

• Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to:  The final amount of charges resulting from the planned North American asset realignment and the Company’s ability to realize anticipated savings and operational benefits from the asset realignment;  Our ability to achieve the strategic and other objectives relating to the acquisition of Spartech Corporation, including any expected synergies;  Our ability to successfully integrate Spartech and achieve the expected results of the acquisition, including, without limitation, the acquisition being accretive;  Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future;  The financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability;  The speed and extent of an economic recovery, including the recovery of the housing market;  Our ability to achieve new business gains;  The effect on foreign operations of currency fluctuations, tariffs, and other political, economic and regulatory risks;  Changes in polymer consumption growth rates in the markets where we conduct business;  Changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online;  Fluctuations in raw material prices, quality and supply and in energy prices and supply;  Production outages or material costs associated with scheduled or unscheduled maintenance programs;  Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters;  An inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions, employee productivity goals, and an inability to raise or sustain prices for products or services;  An inability to raise or sustain prices for products or services;  An inability to maintain appropriate relations with unions and employees;  The inability to achieve expected results from our acquisition activities;  Our ability to continue to pay cash dividends;  The amount and timing of repurchases of our common shares, if any; and  Other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation. • The above list of factors is not exhaustive. • We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise.

• Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to:  The final amount of charges resulting from the planned North American asset realignment and the Company’s ability to realize anticipated savings and operational benefits from the asset realignment;  Our ability to achieve the strategic and other objectives relating to the acquisition of Spartech Corporation, including any expected synergies;  Our ability to successfully integrate Spartech and achieve the expected results of the acquisition, including, without limitation, the acquisition being accretive;  Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future;  The financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability;  The speed and extent of an economic recovery, including the recovery of the housing market;  Our ability to achieve new business gains;  The effect on foreign operations of currency fluctuations, tariffs, and other political, economic and regulatory risks;  Changes in polymer consumption growth rates in the markets where we conduct business;  Changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online;  Fluctuations in raw material prices, quality and supply and in energy prices and supply;  Production outages or material costs associated with scheduled or unscheduled maintenance programs;  Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters;  An inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions, employee productivity goals, and an inability to raise or sustain prices for products or services;  An inability to raise or sustain prices for products or services;  An inability to maintain appropriate relations with unions and employees;  The inability to achieve expected results from our acquisition activities;  Our ability to continue to pay cash dividends;  The amount and timing of repurchases of our common shares, if any; and  Other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation. • The above list of factors is not exhaustive. • We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise.

• Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to:  The final amount of charges resulting from the planned North American asset realignment and the Company’s ability to realize anticipated savings and operational benefits from the asset realignment;  Our ability to achieve the strategic and other objectives relating to the acquisition of Spartech Corporation, including any expected synergies;  Our ability to successfully integrate Spartech and achieve the expected results of the acquisition, including, without limitation, the acquisition being accretive;  Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future;  The financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability;  The speed and extent of an economic recovery, including the recovery of the housing market;  Our ability to achieve new business gains;  The effect on foreign operations of currency fluctuations, tariffs, and other political, economic and regulatory risks;  Changes in polymer consumption growth rates in the markets where we conduct business;  Changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online;  Fluctuations in raw material prices, quality and supply and in energy prices and supply;  Production outages or material costs associated with scheduled or unscheduled maintenance programs;  Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters;  An inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions, employee productivity goals, and an inability to raise or sustain prices for products or services;  An inability to raise or sustain prices for products or services;  An inability to maintain appropriate relations with unions and employees;  The inability to achieve expected results from our acquisition activities;  Our ability to continue to pay cash dividends;  The amount and timing of repurchases of our common shares, if any; and  Other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation. • The above list of factors is not exhaustive. • We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise.