The non-GAAP financial measures include: adjusted EPS, earnings before interest, tax, depreciation and amortization (EBITDA), adjusted EBITDA, net debt, Specialty platform operating income, Specialty platform gross margin percentage, adjusted operating income, return on invested capital, net debt/ EBITDA, and the exclusion of corporate charges in certain calculations. Strong past performance demonstrates that our strategy and execution are working • Megatrends align with our strengths • Innovation and services provide differentiation and competitive advantage • Strong and proven management team driving growth and performance • Addressable market exceeds $40 billion The New PolyOne: A Specialty Growth Company 2015 Target: $2.50 Adjusted EPS Page 15 Schedule I Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data) Below is a reconciliation of non-GAAP financial measures to the most directly comparable measures calculated and presented in accordance with U.S. Platform operating income mix percentage 2005Y* 2008Y* 2010Y* 2012Y* 2012PF** H1 2013*** Global Specialty Engineered Materials $ 0.4 $ 17.6 $ 49.7 $ 47.0 $ 47.7 $ 32.5 Global Color, Additives and Inks 4.3 28.1 37.7 66.8 81.6 54.7 Designed Structures & Solutions - - - - 20.9 10.5 Specialty Platform $ 4.7 $ 45.7 $ 87.4 $ 113.8 $ 150.2 $ 97.7 Performance Products and Solutions 75.7 31.3 54.0 74.9 37.4 27.5 Distribution 19.5 28.1 42.0 66.0 66.0 33.1 SunBelt Joint Venture 91.9 28.6 18.9 - - - Corporate (51.5) (425.1) (27.7) (87.6) (87.9) (37.1) Operating income (loss) GAAP $ 140.3 $ (291.4) $ 174.6 $ 167.1 $ 165.7 $ 121.2 Less: Corporate operating expense (income) 51.5 425.1 27.7 87.6 87.9 37.1 Operating income excluding Corporate $ 191.8 $ 133.7 $ 202.3 $ 254.7 $ 253.6 $ 158.3 Specialty platform operating mix percentage 2% 34% 43% 45% 60% 62% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment. ** Pro Forma results include Spartech and Glasforms acquisitions, Specialty Coatings reclass and exclude the Resin business assets. *** Restated results to exclude the Resin business and to remove Specialty Coatings from the Performance Products and Solutions segment into Global Color, Additives and Inks segment.

Microsoft PowerPoint - AVNT Q2 2022 Earnings Presentation AVIENT CORPORATION S E C O N D Q U A R T E R 2 0 2 2 R E S U L T S (NYSE: AVNT) J U LY 2 6 , 2 0 2 2 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. For the same reasons, Avient is unable to address the probable significance of the unavailable information. Three Months Ended June 30, 2022 Three Months Ended June 30, 2021 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income attributable to Avient shareholders $ 84.7 $ 0.92 $ 68.8 $ 0.74 Special items, after tax 5.1 0.06 11.7 0.13 Adjusted net income / EPS - excluding special items 89.8 0.98 80.5 0.87 FX adjustment n/a n/a $ (4.9) $ (0.05) Adjusted net income / EPS - excluding special items, adjusted for FX $ 89.8 $ 0.98 $ 75.6 $ 0.82 Reconciliation to Consolidated Statements of Income Three Months Ended June 30, 2022 2021 Results Results FX Adjustment FX Adjusted Sales: Color, Additives and Inks $ 649.1 $ 624.4 $ (35.8) $ 588.6 Specialty Engineered Materials 243.9 240.6 (10.5) 230.1 Distribution 443.2 404.4 (0.2) 404.2 Corporate and eliminations (33.8) (34.2) (1.2) (35.4) Sales $ 1,302.4 $ 1,235.2 $ (47.7) $ 1,187.5 Operating income: Color, Additives and Inks $ 93.6 $ 86.3 $ (5.2) 81.1 Specialty Engineered Materials 36.6 37.3 (1.3) 36.0 Distribution 27.1 23.7 — 23.7 Corporate and eliminations (27.8) (39.2) 0.2 (39.0) Operating income 129.5 108.1 (6.3) 101.8 Special items in operating income 4.3 14.2 — 14.2 Adjusted operating income $ 133.8 $ 122.3 $ (6.3) $ 116.0 1 June 30, 2022 GAAP Special Adjusted Operating Income $ 129.5 $ 4.3 $ 133.8 Income before income taxes $ 114.7 $ 3.4 $ 118.1 Income tax expense - GAAP (30.0) — (30.0) Income tax impact of special items — (0.8) (0.8) Tax adjustments — 2.5 2.5 Net income attributable to noncontrolling interests — — — Net income attributable to Avient shareholders $ 84.7 $ 5.1 $ 89.8 EPS $ 0.92 0.06 $ 0.98 Weighted-average diluted shares 92.1 92.1 92.1 June 30, 2021 GAAP Special Adjusted Operating Income $ 108.1 $ 14.2 $ 122.3 Income before income taxes $ 89.8 $ 14.2 $ 104.0 Income tax expense - GAAP (20.4) — (20.4) Income tax impact of special items — (3.4) (3.4) Tax adjustments — 0.9 0.9 Net income attributable to noncontrolling interests (0.6) — (0.6) Net income attributable to Avient shareholders $ 68.8 $ 11.7 $ 80.5 EPS $ 0.74 0.13 $ 0.87 Weighted-average diluted shares 92.4 92.4 92.4 September 30, 2021 GAAP Special Adjusted Operating income $ 78.7 $ 20.0 $ 98.7 Income from continuing operations before income taxes $ 61.1 $ 19.9 $ 81.0 Income tax expense - GAAP (8.5) — (8.5) Income tax impact of special items — (4.6) (4.6) Tax adjustments — (3.6) (3.6) Net income attributable to noncontrolling interests 0.3 — 0.3 Net income from continuing operations attributable to Avient shareholders $ 52.9 $ 11.7 $ 64.6 Net income / EPS $ 0.57 $ 0.13 $ 0.70 Weighted-average diluted shares 92.2 92.2 92.2 Reconciliation of EBITDA by Segment Year Ended December 31, 2021 Operating income: Color, Additives and Inks $ 303.1 Specialty Engineered Materials 132.0 Distribution 93.2 Corporate and eliminations (147.1) Operating income $ 381.2 Items below OI in Corporate: Other income, net $ (1.3) Depreciation & amortization: Color, Additives and Inks $ 105.7 Specialty Engineered Materials 31.7 Distribution 0.8 Corporate and eliminations 7.7 Depreciation & Amortization $ 145.9 EBITDA: Color, Additives and Inks $ 408.8 Specialty Engineered Materials 163.7 Distribution 94.0 Corporate and eliminations (140.7) EBITDA $ 525.8 June 30, Year Ended December 31, Reconciliation to EBITDA and Adjusted EBITDA: 2022 2021 2021 Net income from continuing operations – GAAP $ 84.7 $ 69.4 $ 230.6 Income tax expense 30.0 20.4 74.0 Interest expense 16.2 19.5 75.3 Depreciation and amortization from continuing operations 36.5 33.8 145.9 EBITDA $ 167.4 $ 143.1 $ 525.8 Special items, before tax 3.4 14.2 57.1 Depreciation and amortization included in special items (1.1) 1.4 (1.7) Adjusted EBITDA $ 169.7 $ 158.7 $ 581.2 3 AVNT Q2 2022 Earnings Presentation - Website v2.pdf AVNT Q2 2022 Earnings Presentation - Website.pdf AVNT Q2 2022 Earnings Presentation - Website AVNT Q2 2022 Earnings Presentation - Website AVNT Q2 2022 Earnings Presentation - Website 7.25 323pm IR Deck - AVNT-2022.06.30.pdf

Microsoft PowerPoint - AVNT M8 Investor Presentation AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) AU G U S T 2 0 2 4 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. For the same reasons, Avient is unable to address the probable significance of the unavailable information. 3 AVIENT OVERVIEW 2023 Financial ResultsCompany Overview Revenue By: 9,300 Employees 102 Manufacturing Sites 20,000+ Customers  Innovating materials and processing solutions to solve our customers’ challenges while enabling a sustainable world  Broad portfolio of technologies with market leading positions and flexibility to anticipate and meet customer needs  Focus is on organic revenue growth and margin expansion, following our successful portfolio transformation $3.14B Revenue $2.36 Adjusted EPS $502M Adjusted EBITDA 16.0% Adjusted EBITDA Margins $186M Adjusted Free Cash Flow U.S. & Canada 64% Specialty Engineered Materials Color Additives and Inks 41% 23% 19% 10% 5% 4% Building & Energy Telecom Geography Segment Industry 2024 Financial Guidance $515 to $540 million Adjusted EBITDA $2.55 to $2.70 Adjusted EPS 4 Industry Sustainability Standards ESG Ratings Performance 1 4 87th 94th percentile Avient CDP Score: A- SUSTAINABILITY PERFORMANCE AND RECOGNITION AU G U S T 6 , 20 24 W EB CAS T P RE SE N TATI O N 6 Q2 2024 HIGHLIGHTS • 5% organic sales growth supported by broad-based growth across all regions in both CAI and SEM segments • Growth stemmed from gaining share, winning new product specifications and restocking in certain end markets • Cost control and operational discipline expanded EBITDA margins by 100 bps • EPS exceeded guidance by $0.05 and increased 21% vs the prior year Adj. 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 $ 33.6 $ 0.36 $ 22.1 $ 0.24 Special items, after-tax 21.8 0.24 19.6 0.21 Amortization expense, after-tax 14.8 0.16 16.2 0.18 Adjusted net income / EPS $ 70.2 $ 0.76 $ 57.9 $ 0.63 Three Months Ended Reconciliation to EBITDA and Adjusted EBITDA: 2024 2023 Net income from continuing operations – GAAP $ 33.8 $ 22.3 Income tax expense 11.2 10.4 Interest expense, net 26.6 29.4 Depreciation & amortization 44.9 47.6 EBITDA from continuing operations $ 116.5 $ 109.7 Special items, before tax 28.1 21.7 Interest expense included in special items (1.0) — Depreciation & amortization included in special items (0.3) (0.1) Adjusted EBITDA $ 143.3 $ 131.3 Adjusted EBITDA as a percent of sales 16.9 % 15.9 % 1 2024 2023 Sales: Color, Additives and Inks $ 542.0 $ 524.5 Specialty Engineered Materials 308.1 300.8 Corporate (0.4) (0.9) Sales $ 849.7 $ 824.4 Operating income: Color, Additives and Inks $ 86.1 $ 68.0 Specialty Engineered Materials 42.8 39.7 Corporate (56.4) (45.4) Operating income $ 72.5 $ 62.3 Depreciation & amortization: Color, Additives and Inks $ 21.8 $ 25.7 Specialty Engineered Materials 20.8 19.9 Corporate 2.3 2.0 Depreciation & amortization $ 44.9 $ 47.6 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 107.9 $ 93.7 Specialty Engineered Materials 63.6 59.6 Corporate (54.1) (43.4) Other expense, net (0.9) (0.2) EBITDA from continuing operations 116.5 109.7 Special items, before tax 28.1 21.7 Interest expense included in special items (1.0) — Depreciation & amortization included in special items (0.3) (0.1) Adjusted EBITDA $ 143.3 $ 131.3 Adjusted EBITDA as a percent of sales: Color, Additives and Inks 19.9 % 17.9 % Specialty Engineered Materials 20.6 % 19.8 % 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 AVNT M8 Investor Presentation.pdf Avient Disclaimer SLide.pdf AVNT M8 Investor Presentation IR Deck - AVNT-2024.06.30 (M8) (8.26.24 11AM Milestone August 26 1053 am).pdf Attachment

Formulated for the consumer and transportation markets, reSound recycled content TPE grades can be used in applications such as personal care products, lawn and garden tools, outdoor goods, office supplies, footwear, houseware durables, consumer electronics, and automotive interior and under-the-hood components. reSound™ REC VX2800-0003 C 65 Gray reSound™ REC OF 7310-80 reSound™ REC OF 7310-90 reSound™ REC GP 7820-340 reSound™ REC GP 7820-360 reSound™ REC GP 7820-380 Recycled Content PCR/PIR Blend PCR/PIR Blend PCR/PIR Blend PCR/PIR Blend PCR/PIR Blend PCR/PIR Blend Recycled Content, % 25% 35% 45% 60% 60% 60% Recycled Source Food Food Food Transportation, Industrial Transportation, Industrial Transportation, Industrial Hardness, Shore A 65 80 90 36 63 77 Color Gray Black/Natural (Gray) Black/Natural (Gray) Natural Natural Natural Specific Gravity 0.88 0.9 0.91 0.95 0.98 1.0 Tensile Strength, PSI 831 1120 1590 1027 1012 1173 Elongation at Break, % 620 570 520 1600 1200 1000 Compression Set @ Room Temperature 26 32 37 24 30 39 OM Substrate PP PP PP PP PP PP Processing IM or OM IM IM IM IM IM Agency Rating Application Specific FDA – – – – – Automotive Testing* – VOC & FOG (VDA 278), Odor (VDA 270) VOC & FOG (VDA 278), Odor (VDA 270) – – – reSound™ REC VX7900-5001 C I 30A Natural VX7900-5001 C I 50A Natural reSound™ REC VX7900-5001 C I 70A reSound™ REC AF 7210-140 B AF 7210-150 B reSound™ REC AF 7210-160 B AF 7210-170 B AF 7210-180 B AF 7210-190 B Recycled Content PIR/PCR Blend PIR/PCR Blend PIR/PCR Blend PIR/PCR Blend PIR/PCR Blend PIR/PCR Blend PIR/PCR Blend PIR/PCR Blend PIR/PCR Blend Recycled Content, % 81% 81% 83% 59% 57% 54% 57% 56% 51% PIR Recycled Source Proprietary Blend Proprietary Blend Proprietary Blend Transportation Transportation Transportation Transportation Transportation Transportation PCR Recycled Source Transportation/ Industrial Transportation Transportation Transportation Transportation Transportation Transportation Hardness, Shore A 30 50 70 43 51 61 70 81 90 Color Natural Natural Natural Black Black Black Black Black Black Specific Gravity 1.14 1.16 1.16 0.97 0.98 0.98 0.98 0.99 0.99 Tensile Strength, MPa 2.39 3.23 3.35 4 5 5 8 10 13 Elongation at Break, % 796 654 515 1013 993 981 935 876 829 Compression Set @ Room Temperature 16 24 37 41 44 44 48 54 55 OM Substrate PP PP PP PP PP PP PP PP PP Processing IM or OM IM or OM IM or OM IM IM IM IM IM IM EUROPE GRADES reSound™ REC VX2800-5032 C 47A reSound™ REC VX2800-5033 C 54A reSound™ REC GP 7820-140 GP 7820-160 reSound™ REC GP 7820-180 Recycled Content PCR PCR PCR PCR PCR Recycled Content, % 61% 61% 60% 60% 60% PCR Recycled Source Transportation Transportation Transportation/ Hardness, Shore A 47 54 38 57 77 Color Natural Natural Natural Natural Natural Specific Gravity 0.96 0.96 0.94 0.97 1.0 Tensile Strength, MPa 1.80 2.00 7.19 6.65 7 Elongation at Break, % 766 682 1590 1380 1010 Compression Set @ Room Temperature 28 29 28 32 38 OM Substrate PP PP PP PP PP Processing IM or OM IM or OM IM IM IM EUROPE GRADES ASIA GRADES - PIR reSound™ REC VX3120-801 reSound™ REC VX3120-802 reSound™ REC VX3120-803 Recycled Content PIR PIR PIR Recycled Content, % 20% 40% 60% Recycled Source Textile Textile Textile Hardness, Shore A 67 68 68 Color Natural Natural Natural Specific Gravity 1.11 1.10 1.11 Tensile Strength, PSI 1450 1229 1151 Elongation at Break, % 752 709 653 OM Substrate PC, ABS, PC, ABS, PC, ABS, Processing IM or OM IM or OM IM or OM reSound™ REC DY 7810-801 C 30A Natural reSound™ REC DY 7810-801 C 40A Natural reSound™ REC DY 7810-801 C 50A Natural reSound™ REC DY 7810-801 C 60A Natural reSound™ REC DY 7810-801 C 70A Natural reSound™ REC DY 7810-801 C 80A Natural reSound™ REC DY 7810-801 C 90A Natural reSound™ REC DY 7820-801 C 30A Natural reSound™ REC DY 7820-801 C 40A Natural reSound™ REC DY 7820-801 C 50A reSound™ REC DY 7820-801 C 60A Natural reSound™ REC DY 7820-801 C 70A Natural reSound™ REC DY 7820-801 C 80A Natural reSound™ REC DY 7820-801 C 90A Natural reSound™ REC 3630-801C 40N reSound™ REC 3630-801C 50N reSound™ REC 3630-801C 60N reSound™ REC 7850-90N FR GP 7820-240 GP 7820-260 GP 7820-280 Recycled Content PCR PCR PCR PCR PCR PCR PCR PCR PCR PCR PCR PCR PCR PCR PCR PCR PCR PCR PCR PCR PCR Recycled Content, % 9% 12% 15% 21% 23% 30% 39% 60% 60% 60% 60% 60% 60% 60% 45% 45% 45% 32% 60% 60% 60% Recycled Source Food Food Food Food Food Food Food Food Packaging, Food Packaging, Food Packaging, Food Packaging, Food Packaging, Food Packaging, Food Packaging, Food Packaging, Food Packaging, Food Packaging, Food Hardness, Shore A 30 40 50 60 70 80 90 30 40 50 60 70 80 90 40 49 58 85 39 57 80 Color Natural Natural Natural Natural Natural Natural Natural Natural Natural Natural Natural Natural Natural Natural Natural Natural Natural Natural Natural Natural Natural Specific Gravity 0.88 0.89 0.89 0.88 0.88 0.89 0.89 0.95 0.94 0.97 0.97 0.99 1.01 1.02 0.90 0.90 0.90 1.04 0.95 0.98 1.0 Tensile Strength, PSI 678 889 939 964 1057 1328 1619 663 804 830 859 844 1007 1279 830 965 985 1250 938 1089 1479 Elongation at Break, % >1000 983 893 750 726 699 599 1028 948 880 807 681 642 640 700 700 650 310 1600 1360 1090 OM Substrate PP PP PP PP PP PP PP PP PP PP PP PP PP PP PC, ABS, PC/ABS PC, ABS, PC/ABS PC, ABS, PC/ABS – PP 30 39 Processing IM or OM IM or OM IM or OM IM or OM IM or OM IM or OM IM or OM IM or OM IM or OM IM or OM IM or OM IM or OM IM or OM IM or OM IM or OM IM or OM IM or OM EM IM IM IM ASIA GRADES - PCR Copyright © 2024, Avient Corporation.

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