Unless otherwise stated, Adjusted Operating Income, Adjusted EBITDA and Adjusted EPS figures included in this presentation exclude the impact of special items as defined in our quarterly earnings releases. 2021 PE RF O RM AN CE $80 $85 $0.52 $0.58 Q4 2021 PERFORMANCE Sales Adjusted Operating Income $997 $1,202 + 21% Adjusted EPS + 6% + 12% (in millions) (in millions) $308 $429 $1.93 $3.05 FULL YEAR 2021 PERFORMANCE Sales Adjusted Operating Income $3,783 $4,819 + 27% Adjusted EPS + 39% + 58% (in millions) (in millions) (1) (1) (1) FULL YEAR 2021 SEGMENT PERFORMANCE 6 $2,043 $2,402 SEM Distribution $226 $303 + 18% + 34% $1,110 $1,631 $70 $93 + 47% + 33% $709 $919 $94 $132 + 30% + 40% Full Year 2020 (Pro forma) $3,783 $308 Sustainable Solutions 147 19% 60 Healthcare 143 28% 30 Composites 58 43% 29 Growth in Asia / LATAM 107 21% 26 Other 543 30% 58 Sub-total $4,781 26% $511 Wage Inflation and Overtime (39) Other Supply Chain Costs (15) COVID Response Applications (22) (12) Synergies 44 FX, Incentives, Other Employee Costs 60 (60) Full Year 2021 $4,819 27% $429 FULL YEAR 2021 SALES AND OPERATING INCOME Sales Growth Rate Operating Income$ millions 8 Full Year 2020 (Pro forma) $ 457 Demand 135 $ millions CAI: Price / Mix 158 Inflation (120) SEM: Price / Mix 84 Inflation (65) Distribution: Price / Mix 318 Inflation (304) Net Price Benefit 71 Wage Inflation and Overtime (39) Other Supply Chain Costs (15) COVID Response Applications (12) Synergies 44 Incentives, FX, Other Employee Costs (60) Full Year 2021 $ 581 • Demand impact driven by growth in key focus areas: sustainable solutions, healthcare, composites and growth in Asia / LATAM • Price increases more than offset raw material and supply chain impacts FULL YEAR 2021 EBITDA BRIDGE SPECIALTY EBITDA MARGIN EXPANSION 9 (1) 2018-2020 financial information is pro forma to include a full year of Clariant Color business 15.3% 15.2% 16.2% 17.0% 2018 2019 2020 2021 14.8% 15.2% 17.6% 17.8% 2018 2019 2020 2021 SEM • Record margins in 2021 despite unprecedented supply chain challenges • Continued portfolio transformation to high-growth end markets and sustainable solutions • Clariant Color synergy realization • Investments in composites and outdoor high performance applications drove growth and mix improvements • Acquisition of Clariant Color business significantly expanded presence in healthcare, packaging and consumer end markets • Strength of portfolio – double-digit annual EBITDA growth since acquisition • $54 million of synergies realized in 2021 • Acquisition completed on July 1, 2020 for $1.45 billion. Purchase price multiple rapidly declining on strength of business and synergy capture 10 $133 $205 2019PF 2021 10 Clariant Color EBITDA Growth Purchase Price Multiple 10.8x 7.0x 6.1x 2019PF 2021 2021 w/ Full Synergies 11.9% 16.2% 2019PF 2021 EBITDA Margins CLARIANT COLOR: TRANSFORMATIONAL ACQUISITION (1) Financial information is pro forma to include a full year of Clariant Color business ($ millions) Initial Synergy Estimate 2021 Synergy Realization Total Synergies Expected Administrative $ 18 $ 29 $ 40 Sourcing 24 20 24 Operational 18 5 21 Total Synergies $ 60 $ 54 $ 85 CLARIANT COLOR INTEGRATION & COST SYNERGIES UPDATE 11 • Integration going extremely well: synergy target increased to $85 million at December 9th Investor Day • Relentless focus on guiding principles of safety first, employee collaboration and exceeding customer expectations • Future revenue synergies are not part of these estimates and represent additional growth over the long term SUSTAINABILITY FOR A BETTER TOMORROW • Revenue from sustainable solutions grew 16% in 2021 and expected to grow 8-12% in 2022 as our innovation efforts and collaboration with customers accelerates • Investments centered around innovation and global sustainability megatrends o Enabling a circular economy – Technologies that allow for increased use of post-consumer recycled (PCR) material and improve recyclability of plastics o Light-weighting – Composites and CAI applications to reduce weight and material requirements, which minimize energy and carbon emissions o Eco-Conscious – Health and human safety applications as well as Avient’s alternative materials to replace lead, PVC, halogens, BPA and other less eco-friendly options *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Color business 2016 2017 2018 2019 2020PF** 2021 $405M $455M $550M $790M Revenue From Sustainable Solutions* 2016-2021 $915M $340M PEOPLE C U L T U R E I S E V E R Y T H I N G Community Service 7x Safer than Industry Average World-Class Safety Leadership Development Over $16 million raised since 2010 Diversity & Inclusion 13 Q4 2020 $997 $80 Sustainable Solutions 23 12% 8 Healthcare 53 43% 9 Composites 7 22% 2 Growth in Asia / LATAM 14 10% 3 Other 118 23% 2 Sub-total $1,212 22% $104 Wage Inflation and Overtime (11) Other Supply Chain Costs (4) Synergies 9 Incentives, FX, Other Employee Costs (10) (13) Q4 2021 $1,202 21% $85 Q4 2021 SALES AND OPERATING INCOME 14 Sales Growth Rate Operating Income$ millions Q4 EBITDA BRIDGE 15 Price increases more than offsets raw material and supply chain impacts Q4 2020 $ 118 Demand - $ millions CAI: Price / Mix 62 Inflation (45) SEM: Price / Mix 25 Inflation (20) Distribution: Price / Mix 114 Inflation (109) Net Price Benefit 27 Wage Inflation and Overtime (11) Other Supply Chain Costs (4) Synergies 9 Incentives, FX, Other Employee Costs (13) Q4 2021 $ 126 Transportation (5)$ Outdoor High Performance (3) Other 8 Total Demand - Q4 2021 SEGMENT PERFORMANCE 16 $526 $581 SEM Distribution $58 $61 + 11% + 6% $305 $425 $18 $22 + 39% + 22% $191 $228 $30 $29 + 19% - 3% 2022 O U TLO O K REVENUE GROWTH DRIVERS Growth Drivers Long-Term Growth Rate 2022E Growth Rate Sustainable Solutions 8–12% 12% Healthcare 8–10% 10% Composites 10% 3% Asia / LATAM 5% 6% Other (GDP growth) 2–3% 2–3% Avient 6.5% 6% 18 Excluding Outdoor High Performance 13% (7.5% excl. A reconciliation of these measures to their most directly comparable GAAP measures is provided in the tables below. 1 Reconciliation of EBITDA by Segment Year Ended 2021 2020 2021 2020 2019 2018 Sales: Color, Additives and Inks $ 581.3 $ 525.8 $ 2,401.6 $ 1,502.9 $ 1,003.8 $ 1,046.5 Specialty Engineered Materials 228.2 190.6 918.9 708.8 745.7 645.8 Distribution 425.0 305.1 1,630.9 1,110.3 1,192.2 1,265.4 Corporate and eliminations (33.0) (24.5) (132.6) (79.9) (79.0) (76.7) Sales $ 1,201.5 $ 997.0 $ 4,818.8 $ 3,242.1 $ 2,862.7 $ 2,881.0 Operating income: Color, Additives and Inks $ 61.2 $ 57.5 $ 303.1 $ 180.8 $ 147.4 $ 158.5 Specialty Engineered Materials 28.8 30.4 132.0 94.4 83.7 72.3 Distribution 21.7 18.0 93.2 69.5 75.4 71.5 Corporate and eliminations (37.7) (40.9) (147.1) (155.4) (149.7) (123.7) Operating Income $ 74.0 $ 65.0 $ 381.2 $ 189.3 $ 156.8 $ 178.6 Items Below Operating Income in Corporate: Other income, net $ (5.4) $ 11.7 $ (1.3) $ 24.3 $ 12.1 $ (12.9) Depreciation & amortization: Color, Additives and Inks $ 26.4 $ 27.3 $ 105.7 $ 75.1 $ 42.7 $ 44.3 Specialty Engineered Materials 8.0 7.4 31.7 30.0 29.5 23.2 Distribution 0.2 0.3 0.8 0.7 0.5 0.7 Corporate and eliminations 3.6 2.8 7.7 9.3 5.4 4.4 Depreciation & Amortization $ 38.2 $ 37.8 $ 145.9 $ 115.1 $ 78.1 $ 72.6 EBITDA: Color, Additives and Inks $ 87.6 $ 84.8 $ 408.8 $ 255.9 $ 190.1 $ 202.8 Specialty Engineered Materials 36.8 37.8 163.7 124.4 113.2 95.5 Distribution 21.9 18.3 94.0 70.2 75.9 72.2 Corporate and eliminations (39.5) (26.4) (140.7) (121.8) (132.2) (132.2) EBITDA $ 106.8 $ 114.5 $ 525.8 $ 328.7 $ 247.0 $ 238.3 EBITDA as a % of sales: Color, Additives and Inks 15.1 % 16.1 % 17.0 % 17.0 % 18.9 % 19.4 % Specialty Engineered Materials 16.1 % 19.8 % 17.8 % 17.6 % 15.2 % 14.8 % Distribution 5.2 % 6.0 % 5.8 % 6.3 % 6.4 % 5.7 % Reconciliation of Pro Forma Sales, Operating Income and EBITDA - Color, Additives and Inks Year Ended December 31, 2020 2019 2018 Sales: Color, Additives and Inks $ 1,502.9 $ 1,003.8 $ 1,046.5 Clariant Color pro forma adjustments(1) 540.4 1,118.6 1,209.8 Pro forma sales $ 2,043.3 $ 2,122.4 $ 2,256.3 Operating income: Color, Additives and Inks $ 180.8 $ 147.4 $ 158.5 Clariant Color pro forma adjustments(1) 45.0 72.9 80.3 Pro forma operating income $ 225.8 $ 220.3 $ 238.8 Depreciation & amortization: Color, Additives and Inks $ 75.1 $ 42.7 $ 44.3 Clariant Color pro forma adjustments(1) 30.1 60.3 61.2 Pro forma depreciation & amortization $ 105.2 $ 103.0 $ 105.5 Color, Additives and Inks $ 255.9 $ 190.1 $ 202.8 Clariant Color pro forma adjustments(1) 75.1 133.2 141.5 Pro forma EBITDA $ 331.0 $ 323.3 $ 344.3 Pro forma EBITDA as a % of Sales 16.2 % 15.2 % 15.3 % Three Months Ended December 31, Year Ended December 31, Reconciliation to Adjusted EBITDA: 2021 2020 2021 2020 2019 Net income from continuing operations – GAAP $ 28.9 $ 74.7 $ 230.6 $ 133.8 $ 75.7 Income tax expense (benefit) 22.2 (17.3) 74.0 5.2 33.7 Interest expense 17.5 19.3 75.3 74.6 59.5 Depreciation and amortization from continuing operations 38.2 37.8 145.9 115.0 78.1 EBITDA $ 106.8 $ 114.5 $ 525.8 $ 328.6 $ 247.0 Special items, before tax 20.6 4.2 57.1 66.2 61.7 Interest expense included in special items — — — (10.1) — Depreciation and amortization included in special items (1.6) (0.70) (1.7) (3.2) — Adjusted EBITDA $ 125.8 $ 118.0 $ 581.2 $ 381.6 $ 308.7 Clariant Color pro forma adjustments(1) — 33.4 — 75.1 133.2 Pro forma adjusted EBITDA $ 125.8 $ 113.1 $ 581.2 $ 456.7 $ 441.9 Free Cash Flow Calculation December 31, 2021 Cash provided by operating activities 233.8 Capital expenditures (100.6) Free cash flow $ 133.2 Net Debt Calculation December 31, 2021 Total long-term debt, net $ 1,850.3 Unamortized discount and debt issuance cost 14.4 Short-term and current portion of long term debt 8.6 Total debt $ 1,873.3 Cash (601.2) Net debt $ 1,272.1 Three Months Ended December 31, 2021 Reconciliation of Adjusted Earnings per Share: Avient Special Adjusted Sales $ 1,201.5 $ — $ 1,201.5 Operating income $ 74.0 $ 11.2 $ 85.2 Interest expense, net (17.5) — (17.5) Other income, net (5.4) 9.4 4.0 Income taxes (22.2) 3.4 (18.8) Net income from continuing operations attributable to Avient shareholders $ 29.8 $ 24.0 $ 53.8 Weighted average diluted shares 92.1 Adjusted EPS - excluding special items $ 0.58 Reconciliation of Adjusted EBITDA from continuing operations: Operating income and other income, net $ 68.6 $ 20.6 $ 89.2 Depreciation and amortization 38.2 (1.6) 36.6 EBITDA from continuing operations $ 106.8 $ 19.0 $ 125.8 EBITDA as a % of sales 10.5 % Three Months Ended Reconciliation of Adjusted Earnings per Share: Avient Special Adjusted Sales $ 997.0 $ — $ 997.0 Operating income $ 65.0 $ 14.6 $ 79.6 Interest expense, net (19.3) — (19.3) Other income, net 11.7 (10.4) 1.3 Income taxes 17.3 (30.9) (13.6) Net income from continuing operations attributable to Avient shareholders $ 74.2 $ (26.7) $ 47.5 Weighted average diluted shares 92.1 Adjusted EPS - excluding special items $ 0.52 Reconciliation of Adjusted EBITDA from continuing operations: Operating income and other income, net $ 76.7 $ 4.2 $ 80.9 Depreciation and amortization 37.8 (0.7) 37.1 EBITDA from continuing operations $ 114.5 $ 3.5 $ 118.0 EBITDA as a % of sales 11.8 % Reconciliation of Pro Forma Adjusted Earnings per Share: Avient Special Adjusted Clariant Color Pro Forma Pro Forma Adjusted Sales $ 3,242.1 $ — $ 3,242.1 $ 540.4 $ 3,782.5 Operating income $ 189.3 $ 73.7 $ 263.0 $ 45.0 $ 308.0 Interest expense, net (74.6) 10.1 (64.5) (18.1) (82.6) Other income, net 24.3 (17.6) 6.7 — 6.7 Income taxes (5.2) (41.4) (46.6) (6.2) (52.8) Net income attributable to noncontrolling interests (1.8) — (1.8) — (1.8) Net income from continuing operations attributable to Avient shareholders $ 132.0 $ 24.8 $ 156.8 $ 20.7 $ 177.5 Weighted average diluted shares 90.6 Impact to diluted shares from January 2020 equity offering 1.5 Pro forma weighted average diluted shares 92.1 Pro forma adjusted EPS $ 1.93 Reconciliation of Pro Forma Adjusted EBITDA from continuing operations: Operating income and other income, net $ 213.6 $ — $ 56.1 $ 269.7 $ 45.0 $ — $ 314.7 Depreciation and amortization 115.1 (3.2) 111.9 30.1 142.0 EBITDA from continuing operations $ 328.7 $ 52.9 $ 381.6 $ 75.1 $ 456.7 EBITDA as a % of sales 12.1 % Reconciliation of Pro Forma Adjusted Earnings per Share: Avient Special Adjusted Clariant Color Pro Forma Pro Forma Adjusted Sales $ 2,862.7 $ — $ 2,862.7 $ 1,118.6 $ 3,981.3 Operating income $ 156.8 $ 71.7 $ 228.5 $ 72.9 $ 301.4 Interest expense, net (59.5) — (59.5) (33.4) (92.9) Other income, net 12.1 (10.0) 2.1 — 2.1 Income taxes (33.7) (5.9) (39.6) (9.1) (48.7) Net income attributable to noncontrolling interests (0.2) — (0.2) — (0.2) Net income from continuing operations attributable to Avient shareholders $ 75.5 $ 55.8 $ 131.3 $ 30.4 $ 161.7 Weighted average diluted shares 77.7 Impact to diluted shares from January 2020 equity offering 15.3 Pro forma weighted average diluted shares 93.0 Pro forma adjusted EPS $ 1.74 Reconciliation of Pro Forma Adjusted EBITDA from continuing operations: Operating income and other income, net $ 168.9 $ — $ 61.7 $ 230.6 $ 72.9 $ — $ 303.5 Depreciation and amortization 78.1 — 78.1 60.3 138.4 EBITDA from continuing operations $ 247.0 $ 61.7 $ 308.7 $ 133.2 $ 441.9 EBITDA as a % of sales 11.1 % March 31, 2021 Reconciliation to Condensed Consolidated Statements of Income GAAP Special Adjusted Operating income $ 120.4 $ 2.4 $ 122.8 Income from continuing operations before income taxes $ 102.6 $ 2.4 $ 105.0 Income tax expense - GAAP (22.9) — (22.9) Income tax impact of special items — (0.9) (0.9) Tax adjustments — 1.1 1.1 Net income attributable to noncontrolling interests (0.4) — (0.4) Net income from continuing operations attributable to Avient shareholders $ 79.3 $ 2.6 $ 81.9 Net income / EPS $ 0.86 0.03 $ 0.89 Weighted-average diluted shares 92.2 92.2 92.2 Year Ended December 31, 2021 Reconciliation to Condensed Consolidated Statements of Income GAAP Special Adjusted Operating income $ 381.2 $ 47.8 $ 429.0 Income from continuing operations before income taxes $ 304.6 $ 57.1 $ 361.7 Income tax expense - GAAP (74.0) — (74.0) Income tax impact of special items — (13.0) (13.0) Tax adjustments — 5.9 5.9 Net income attributable to noncontrolling interests 0.2 — 0.2 Net income from continuing operations attributable to Avient shareholders $ 230.8 $ 50.0 $ 280.8 Net income / EPS $ 2.51 0.54 $ 3.05 Weighted-average diluted shares 92.1 92.1 92.1 Three Months Ended December 31, 2019 Year Ended Reconciliation of pro forma sales, operating income, and EBITDA: CAI Clariant Color Pro Forma Pro Forma CAI CAI Clariant Color Pro Forma Pro Forma Sales $ 226.7 $ 263.5 $ 490.2 $ 1,003.8 $ 1,118.6 $ 2,122.4 Operating income $ 27.2 $ 13.2 $ 40.4 $ 147.4 $ 72.9 $ 220.3 EBITDA $ 37.9 $ 28.3 $ 66.2 $ 190.1 $ 133.2 $ 323.3 EBITDA as a % of sales 13.5 % 15.2 % 6 Year Ended December 31, 2020 Reconciliation of pro forma sales, operating income, and EBITDA: CAI Clariant Color Pro Forma Pro Forma Sales $ 1,502.9 $ 540.4 $ 2,043.3 Operating income $ 180.8 $ 45.0 $ 225.8 EBITDA $ 255.9 $ 75.1 $ 331.0 EBITDA as a % of sales 16.2 % AVNT Q4 2021 Earnings Presentation.pdf AVNT Q4 2021 Earnings Presentation.pdf 2.7.22 632pm IR Deck - AVNT-2021.12.31.pdf

Screen Printing Inks Printing and Marking Inks Cesa™ Mix Additives

Global Color, Additives and Inks Global Color, Additives and Inks Global Color, Additives and Inks

Global Color, Additives and Inks Global Color, Additives and Inks Global Color, Additives and Inks

& Canada 64% Specialty Engineered Materials Color Additives and Inks 23% 10% 5% 4% Building & Energy Telecom Geography Segment Industry 4 CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 1. 6% annualized long term sales growth leveraging sustainable solutions, composites, healthcare and emerging regions 2. PY $790 $719 $107 $114 Sales Adjusted EBITDA $0.42 $0.52 - 9% + 7% + 24% Sales Adjusted EBITDA Adjusted EPS 15 Q4 2023 SEGMENT PERFORMANCE 16 CAI $491 $459 Sales $70 $84 SEM $301 $260 Sales $55 $49 - 7% - 14%+20% - 11% Q4 EBITDA BRIDGE 17 $ millions CAI: Price / Mix 11 Deflation 14 SEM: Price / Mix 4 Deflation 9 Net Price Benefit 38 Cost Reductions 13 Wage Inflation (8) Other (2) Q4 2023 $114 Adjusted Q4 2022 $ 107 Demand (34) • Demand was down, but less than in previous quarters, due to slowing pace of destocking • Positive net price benefit: o CAI – Pricing flat with favorable mix from uptick in packaging and consumer end markets and raw material deflation o SEM - Pricing flat with favorable mix from Composites and raw material deflation • Cost reductions primarily driven by reduced administrative costs and cost synergies 2024 G U I DAN CE 2024 GUIDANCE Full Year 2024 Guidance Adjusted EBITDA $505 to $535 million Adjusted EPS $2.40 to $2.65 Interest Expense $105 to $110 million Adjusted Effective Tax Rate 23% to 25% Capital Expenditures ~$140 million 19 Q1 Adjusted EPS of $0.68 AP P E N DI X 21 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 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 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) 23 (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 24 34% 21% 15% Building & 1% Energy COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 BILLION 52% 35% 25 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) 26 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. Three Months Ended Year Ended 2023 2022 2023 2022 Sales: Color, Additives and Inks $ 459.4 $ 490.8 $ 2,007.4 $ 2,355.0 Specialty Engineered Materials 259.8 300.8 1,138.2 1,044.4 Corporate (0.2) (1.2) (2.8) (2.5) Sales $ 719.0 $ 790.4 $ 3,142.8 $ 3,396.9 Operating income: Color, Additives and Inks $ 61.8 $ 44.3 $ 259.9 $ 301.0 Specialty Engineered Materials 29.4 35.2 142.5 140.1 Corporate (48.1) (79.1) (205.6) (197.8) Operating income $ 43.1 $ 0.4 $ 196.8 $ 243.3 Other expense, net: $ 4.3 $ (28.4) $ 5.8 $ (59.7) Depreciation & amortization: Color, Additives and Inks $ 22.2 $ 25.2 $ 98.3 $ 101.3 Specialty Engineered Materials 19.8 20.3 81.5 48.7 Corporate 2.2 3.1 9.0 12.5 Depreciation & amortization $ 44.2 $ 48.6 $ 188.8 $ 162.5 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 84.0 $ 69.5 $ 358.2 $ 402.3 Specialty Engineered Materials 49.2 55.5 224.0 188.8 Corporate (45.9) (76.0) (196.6) (185.3) Other expense, net $ 4.3 $ (28.4) $ 5.8 $ (59.7) EBITDA $ 91.6 $ 20.6 $ 391.4 $ 346.1 Special items in EBITDA 22.3 86.8 110.4 162.5 EBITDA - excluding special items $ 113.9 $ 107.4 $ 501.8 $ 508.6 APM pro forma adjustments - 8 months 2022* — — — 83.1 Pro forma EBITDA $ 113.9 $ 107.4 $ 501.8 $ 591.7 * Pro forma adjustment for January - August 2022 APM results (period before Avient ownership). 3 AVNT February IR Presentation.pdf Avient corporation�investor presentation DISCLAIMER Slide Number 3 Creating a world-class�sustainable organization Top-tier sustainability performance�and recognition Slide Number 6 Slide Number 7 Portfolio transformation Slide Number 9 END MARKET observations�(% of company sales) Regional observations�(% of company sales) Slide Number 12 Slide Number 13 Slide Number 14 Slide Number 15 Slide Number 16 Slide Number 17 Slide Number 18 Slide Number 19 Slide Number 20 Slide Number 21 Slide Number 22 2023 segment, end market and Geography Color, Additives & Inks Specialty Engineered Materials Slide Number 26 AVNT Q4 2023 Earnings Presentation.pdf AVNT Q4 2023 Earnings Presentation_For Website_with Non-GAAP.pdf IR Deck - AVNT-2023.12.31 (2.12.24 9PM Milestone February 12 0905 pm).pdf Attachment

& Canada 64% Specialty Engineered Materials Color Additives and Inks 41% 23% 19% 10% 5% 4% Building & Energy Telecom Geography Segment Industry CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 1. 6% annualized long term sales growth leveraging sustainable solutions, composites, healthcare and emerging regions 2. Q1 2023 (TOTAL COMPANY) $846 $829 $134 $143 17.3% (in millions) $0.63 $0.76 (in millions) + 7% + 21% Sales Adjusted EBITDA Adjusted EPS 9 - 2% 15.8% +150 bps Q1 2024 SEGMENT PERFORMANCE (COLOR, ADDITIVES & INKS) $537 $515 $91 $97 18.8% (in millions) (in millions) + 7% 10 - 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% 11 + 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) 12 $ 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 IDA N 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 14 Q2 2024: Adjusted EPS of $0.71 CE O “TO P O F M IN D ” FO CU S ARE A S AREAS OF FOCUS 16 +7% Drive Profitable Organic Top-Line Growth with Margin Expansion Amplify Innovation Build Leadership & Talent Pipeline AP P EN D IX 19 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) 21 (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 22 34% 21% 15% Building & 1% Energy COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 B ILL ION 52% 35% 23 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) 24 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 % 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 Free Cash Flow Calculation December 31, 2023 Cash provided by operating activities $ 201.6 Taxes paid on gain on sale of business 104.1 Adjusted cash provided by operating activities 305.7 Capital expenditures (119.4) 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 and amortization included in special items (1.9) Adjusted EBITDA $ 501.8 Adjusted EBITDA as a percent of sales 16.0 % 3 Year Ended December 31, Reconciliation to EBITDA and Adjusted EBITDA: 2006 2014 Sales $ 2,622.4 $ 3,835.5 Net income from continuing operations – GAAP $ 133.5 $ 77.2 Income tax expense 29.7 11.2 Interest expense, net 63.1 62.2 Depreciation and amortization 57.1 123.9 EBITDA from continuing operations 283.4 274.5 Special items, before tax (34.0) 164.9 Depreciation and amortization included in special items — (23.1) Joint venture equity income (107.0) — Adjusted EBITDA $ 142.4 $ 416.3 Adjusted EBITDA as a percent of sales 5.4 % 10.9 % Year Ended December 31, Reconciliation of Adjusted EPS: 2006 2014 Net income from continuing operations attributable to Avient common shareholders $ 130.9 $ 78.0 Joint venture equity earnings, after-tax (68.5) — Special items, after-tax (21.2) 101.0 Special items, tax adjustments (30.0) (10.5) Amortization expense, after-tax 1.4 12.4 Adjusted net income from continuing operations attributable to Avient common shareholders $ 12.6 $ 180.9 Diluted shares 92.8 93.5 Adjusted EPS attributable to Avient common shareholders $ 0.14 $ 1.93 AVNT Q1 2024 Investor Presentation_w Non-GAAP.pdf IR Deck - AVNT-2024.03.31 5.09 4PM.pdf Attachment

Platform operating income mix percentage 2005Y* 2006* 2008Y* 2010Y* 2013Y Global Specialty Engineered Materials $ 0.4 $ 3.9 $ 17.6 $ 49.7 $ 57.2 Global Color, Additives and Inks 4.3 8.9 28.1 37.7 104.0 Designed Structures and Solutions - - - - 33.4 Specialty Platform $ 4.7 $ 12.8 $ 45.7 $ 87.4 $ 194.6 Performance Products and Solutions 75.7 64.2 31.3 54.0 56.0 Distribution 19.5 19.2 28.1 42.0 63.3 SunBelt Joint venture 91.9 102.9 28.6 18.9 - Corporate (51.5) 34.5 (425.1) (27.7) (82.4) Operating income (loss) GAAP $ 140.3 $ 233.6 $ (291.4) $ 174.6 $ 231.5 Less: Corporate operating expense 51.5 (34.5) 425.1 27.7 82.4 Operating income excluding Corporate $ 191.8 $ 199.1 $ 133.7 $ 202.3 $ 313.9 Specialty platform operating mix percentage 2% 6% 34% 43% 62% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment. Reconciliation to Condensed Consolidated Balance Sheets 2013 Short-term debt and current portion of long-term debt $ 12.7 Long-term debt 976.2 Less cash and cash equivalents (365.2) Net debt $ 623.7 Adjusted EBITDA 2013 Income before income taxes $ 151.0 Interest expense, net 63.5 Depreciation and amortization 108.8 Special items in EBITDA 31.7 Adjusted EBITDA $ 355.0 2 Platform sales and operating income (OI) 2006Y* 2013Y Global Specialty Engineered Materials sales $ 345.3 $ 615.5 Global Color, Additives and Inks sales 531.8 852.3 Designed Structures and Solutions sales - 597.4 Specialty Platform sales 877.1 2,065.2 Performance Products and Solutions sales 1,166.2 773.2 PolyOne Distribution sales 732.8 1,075.2 Corporate and eliminations (153.7) (142.4) Total sales $ 2,622.4 $ 3,771.2 Global Specialty Engineered Materials OI $ 3.9 $ 57.2 Global Color, Additives and Inks OI 8.9 104.0 Designed Structures & Solutions OI - 33.4 Specialty Platform OI 12.8 194.6 Performance Products and Solutions OI 64.2 56.0 PolyOne Distribution OI 19.2 63.3 Sunbelt Joint Venture OI 102.9 - Corporate and eliminations (4.6) (52.4) Special items in OI 39.1 (30.0) Operating income GAAP 233.6 231.5 Sunbelt equity income (107.0) - Special items in OI (39.1) 30.0 Adjusted operating income $ 87.5 $ 261.5 Global Specialty Engineered Materials - OI % of sales 1.1% 9.3% Global Color, Additives and Inks - OI % of sales 1.7% 12.2% Designed Structures & Solutions - OI % of sales - 5.6% Specialty platform OI - % of sales 1.5% 9.4% PP&S operating OI - % of sales 5.5% 7.2% Distribution OI - % of sales 2.6% 5.9% PolyOne OI adjusted - % of sales 3.3% 6.9% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment. Appendix At a Glance�Global Specialty Engineered Materials At a Glance�Global Color, Additives, and Inks At a Glance�Designed Structures and Solutions At a Glance�Performance Products and Solutions At a Glance�Distribution Plastics: Key to Future Sustainable Development Establish Lean Six Sigma As Way of Life Application Examples Slide Number 24 2012 Range Rover Evoque Interior Slide Number 26 Slide Number 27 Metal Replacement Solutions High-Barrier Packaging Containers Aerospace Applications Sidoti Reconciliation of Non-GAAP.pdf Section 1

& Canada 64% Specialty Engineered Materials Color Additives and Inks 23% 10% 5% 4% Building & Energy Telecom Geography Segment Industry 4 CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 1. 6% annualized long term sales growth leveraging sustainable solutions, composites, healthcare and emerging regions 2. PY $790 $719 $107 $114 Sales Adjusted EBITDA $0.42 $0.52 - 9% + 7% + 24% Sales Adjusted EBITDA Adjusted EPS 15 Q4 2023 SEGMENT PERFORMANCE 16 CAI $491 $459 Sales $70 $84 SEM $301 $260 Sales $55 $49 - 7% - 14%+20% - 11% Q4 EBITDA BRIDGE 17 $ millions CAI: Price / Mix 11 Deflation 14 SEM: Price / Mix 4 Deflation 9 Net Price Benefit 38 Cost Reductions 13 Wage Inflation (8) Other (2) Q4 2023 $114 Adjusted Q4 2022 $ 107 Demand (34) • Demand was down, but less than in previous quarters, due to slowing pace of destocking • Positive net price benefit: o CAI – Pricing flat with favorable mix from uptick in packaging and consumer end markets and raw material deflation o SEM - Pricing flat with favorable mix from Composites and raw material deflation • Cost reductions primarily driven by reduced administrative costs and cost synergies 2024 G U I DAN CE 2024 GUIDANCE Full Year 2024 Guidance Adjusted EBITDA $505 to $535 million Adjusted EPS $2.40 to $2.65 Interest Expense $105 to $110 million Adjusted Effective Tax Rate 23% to 25% Capital Expenditures ~$140 million 19 Q1 Adjusted EPS of $0.68 AP P E N DI X 21 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 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 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) 23 (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 24 34% 21% 15% Building & 1% Energy COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 BILLION 52% 35% 25 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) 26 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. Free Cash Flow Calculation December 31, 2023 Cash provided by operating activities $ 201.6 Taxes paid on gain on sale of business 104.1 Adjusted cash provided by operating activities $ 305.7 Capital expenditures $ (119.4) Free cash flow $ 186.3 Three Months Ended Year Ended 2023 2022 2023 2022 Sales: Color, Additives and Inks $ 459.4 $ 490.8 $ 2,007.4 $ 2,355.0 Specialty Engineered Materials 259.8 300.8 1,138.2 1,044.4 Corporate (0.2) (1.2) (2.8) (2.5) Sales $ 719.0 $ 790.4 $ 3,142.8 $ 3,396.9 Operating income: Color, Additives and Inks $ 61.8 $ 44.3 $ 259.9 $ 301.0 Specialty Engineered Materials 29.4 35.2 142.5 140.1 Corporate (48.1) (79.1) (205.6) (197.8) Operating income $ 43.1 $ 0.4 $ 196.8 $ 243.3 Other expense, net: $ 4.3 $ (28.4) $ 5.8 $ (59.7) Depreciation & amortization: Color, Additives and Inks $ 22.2 $ 25.2 $ 98.3 $ 101.3 Specialty Engineered Materials 19.8 20.3 81.5 48.7 Corporate 2.2 3.1 9.0 12.5 Depreciation & amortization $ 44.2 $ 48.6 $ 188.8 $ 162.5 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 84.0 $ 69.5 $ 358.2 $ 402.3 Specialty Engineered Materials 49.2 55.5 224.0 188.8 Corporate (45.9) (76.0) (196.6) (185.3) Other expense, net $ 4.3 $ (28.4) $ 5.8 $ (59.7) EBITDA $ 91.6 $ 20.6 $ 391.4 $ 346.1 Special items in EBITDA 22.3 86.8 110.4 162.5 EBITDA - excluding special items $ 113.9 $ 107.4 $ 501.8 $ 508.6 APM pro forma adjustments - 8 months 2022* — — — 83.1 Pro forma EBITDA $ 113.9 $ 107.4 $ 501.8 $ 591.7 * Pro forma adjustment for January - August 2022 APM results (period before Avient ownership). 3 AVNT February IR Presentation_w_Non-GAAP Recs.pdf AVNT February IR Presentation.pdf Avient corporation�investor presentation DISCLAIMER Slide Number 3 Creating a world-class�sustainable organization Top-tier sustainability performance�and recognition Slide Number 6 Slide Number 7 Portfolio transformation Slide Number 9 END MARKET observations�(% of company sales) Regional observations�(% of company sales) Slide Number 12 Slide Number 13 Slide Number 14 Slide Number 15 Slide Number 16 Slide Number 17 Slide Number 18 Slide Number 19 Slide Number 20 Slide Number 21 Slide Number 22 2023 segment, end market and Geography Color, Additives & Inks Specialty Engineered Materials Slide Number 26 AVNT Q4 2023 Earnings Presentation.pdf AVNT Q4 2023 Earnings Presentation_For Website_with Non-GAAP.pdf IR Deck - AVNT-2023.12.31 (2.12.24 9PM Milestone February 12 0905 pm).pdf Attachment 3.26.24 - Public Lender Presentation Non-GAAP Attachments (005).pdf

Screen Printing Inks Printing and Marking Inks Cesa™ Mix Additives

Screen Printing Inks Printing and Marking Inks Cesa™ Mix Additives