BULLOCK, SECRETARY OF STATE OF THE STATE OF DELAWARE, DO HEREBY CERTIFY THE ATTACHED IS A TRUE AND CORRECT COPY OF THE CERTIFICATE OF AMENDMENT OF “CLARIANT PLASTICS & COATINGS USA LLC”, CHANGING ITS NAME FROM "CLARIANT PLASTICS & COATINGS USA LLC" TO "AVIENT COLORANTS USA LLC", FILED IN THIS OFFICE ON THE ELEVENTH DAY OF JANUARY, A.D. 2021, AT 10:39 O`CLOCK A.M.

& Canada EMEA Asia Latin America 64% 36% Specialty Engineered Materials Color Additives and Inks 40% 37% 18% 5% 6% 8% 24% 20% 10% 15% 9% 4% 4% Defense Healthcare Packaging Consumer Building & Construction Industrial Transportation 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. WHAT WE DO: WE ARE A FORMULATOR 6 CUSTOM FORMULATION N OVE MBE R 2 , 2023 W E BCAS T P RE S E N TAT I O N Complementary technologies and customer relationships offer opportunity to advance commercial strategy Dyneema®, the world’s strongest fiber™, to accelerate growth of sustainable, ultralight and high performance applications AVIENT PROTECTIVE MATERIALS FIRST YEAR 8 Composites comprises over half of Specialty Engineered Materials, compared to 9% in 2016 Proven history of success in areas such as outdoor high performance, defense and sustainable solutions Composites 44% 56% 2023E Sales Collaboration & InnovationComposites as a % of SEM People & Culture Talented, passionate, and creative associates drive continued integration success and allow two cultures to come together as one Avient Lightweight Protective Laminates: PROJECTILE PROTECTION Dyneema® Fiber Solutions Cushioning + Fit + Comfort: LONG-TERM WEAR reSound™ Versaflex™ Thermoplastic Elastomers Strength + Durability + Light-Weighting: SOLID MOUNTING BRACKETS Nymax™ Bergamid™ Complēt™ Engineered Materials Durability + Lubricity: HELMET LATCHES Lubri-One™ Internally Lubricated Polymers Color Consistency and Weatherability CUSTOMIZED SPECIFICATIONS Avient Color and Additive Solutions Antennae Performance FAST, RELIABLE CONNECTIONS PREPERM™ Low-Loss Dielectric Thermoplastics AVIENT PROTECTIVE MATERIALS CROSS SELLING OPPORTUNITIES Wired Connections CONSTANT COMMUNICATION Syncure™ Cross-linkable Wire & Cable Formulations9 10 AVIENT PROTECTIVE MATERIALS CROSS SELLING OPPORTUNITIES 10 Q 3 P E RFO RMAN CE 15.4% 16.3% 2022 PF 2023 Results vs. Avient 2011, 2018 and 2021 multiples reflect trailing 12 months EBITDA at December 31. 28 EV / 2023E EBITDA 6.5 8.5 11.0 8.9 12.0 11.9 10.9 9.9 8.2 16.3 13.8 11.9 9.6 9.5 9.5 9.2 7.7 20 11 20 18 20 21 O ct 20 23 AV Y R PM PP G KW R FU L EC L H XL SC L AS H FM C C E H U N EM N Avient Historic Multiple Avient Specialty Formulators Other Specialty / Chemical Companies AP P E N DI X 30 Performance Additives 16% Pigments 12% TiO2 10% Dyestuffs 2% Polyethylene 11% Nylon 6% Polypropylene 5% Styrenic Block Copolymer 5% Other Raw Materials 33% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 2022 pro forma results for the acquisition of Avient Protective Materials RAW MATERIAL BASKET SEGMENT DATA U.S. & Canada 40% EMEA 37% Asia 18% Latin America 5% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 20% Packaging 24% Industrial 15% Building and Construction 10% Telecommunications 4% Energy 4% Defense 6% END MARKET REVENUE $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M (1) Transportation 9% Healthcare 8% 32 (1) Total company sales and adjusted EBITDA of $3,653M and $592M, respectively, include intercompany sales eliminations and corporate costs 2022 REVENUE | $2 .4 BILLION US & Canada 34% EMEA 38% Asia 20% Latin America 8% END MARKET REGION 33 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 8% Building & Construction 11% Telecommunications 1% Energy 2% COLOR, ADDITIVES & INKS 2022 PRO FORMA REVENUE | $1 .3 BILLION US & Canada 52% EMEA 35% Asia 13% 34 Packaging 5% Consumer 19% Healthcare 8%Industrial 16% Transportation 10% Telecommunications 10% Energy 9% Defense 15% Building & Construction 8% END MARKET REGION SPECIALTY ENGINEERED MATERIALS Packaging 32% Consumer 27% Healthcare 8% Industrial 14% Building & Construction 5% Telecommunications 3% Energy 1% Defense 1% Asia (18% of sales) Transportation 9% 2022 PROFORMA AVIENT REGIONAL SALES Packaging 27% Consumer 14% Healthcare 5% Industrial 17% Building & Construction 10% Energy 5% Defense 8% EMEA (37% of sales)Transportation 11% Packaging 13% Consumer 24% Healthcare 12% Industrial 15% Building & Construction 13% Energy 5% Defense 5% US & Canada (40% of sales) Transportation 7% Packaging 56% Consumer 23% Healthcare 4% Industrial 7% Building & Construction 4% Telecommunications 1% LATAM (5% of sales) Transportation 5% Telecommunications 3% Telecommunications 6% 35 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 June 30, Six Months Ended June 30, 2023 2022 2023 2022 Sales: Color, Additives and Inks $ 524.5 $ 649.1 $ 1,061.5 $ 1,298.6 Specialty Engineered Materials 300.8 242.3 610.5 485.4 Corporate (0.9) (0.4) (1.9) (0.8) Sales $ 824.4 $ 891.0 $ 1,670.1 $ 1,783.2 Gross margin: Color, Additives and Inks $ 164.1 $ 193.4 $ 326.1 $ 385.5 Specialty Engineered Materials 91.5 66.0 185.4 134.4 Corporate (14.9) 1.5 (23.2) (4.6) Gross margin $ 240.7 $ 260.9 $ 488.3 $ 515.3 Selling and administrative expense: Color, Additives and Inks $ 96.1 $ 99.8 $ 192.5 $ 197.4 Specialty Engineered Materials 51.8 30.8 102.6 60.9 Corporate 30.5 30.2 73.8 54.7 Selling and administrative expense $ 178.4 $ 160.8 $ 368.9 $ 313.0 Operating income: Color, Additives and Inks $ 68.0 $ 93.6 $ 133.6 $ 188.1 Specialty Engineered Materials 39.7 35.2 82.8 73.5 Corporate (45.4) (28.7) (97.0) (59.3) Operating income $ 62.3 $ 100.1 $ 119.4 $ 202.3 Depreciation & amortization: Color, Additives and Inks $ 25.7 $ 25.8 $ 51.5 $ 51.9 Specialty Engineered Materials 19.9 7.6 41.1 15.5 Corporate 2.0 3.1 5.5 6.9 Depreciation & Amortization $ 47.6 $ 36.5 $ 98.1 $ 74.3 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 93.7 $ 119.4 $ 185.1 $ 240.0 Specialty Engineered Materials 59.6 42.8 123.9 89.0 Corporate (43.4) (25.6) (91.5) (52.4) Other income (expense), net (0.2) 1.6 0.5 1.0 EBITDA including special items $ 109.7 $ 138.2 $ 218.0 $ 277.6 Total Company special items in EBITDA 21.6 (0.2) 47.1 4.4 Total Company, EBITDA adjusted $ 131.3 $ 138.0 $ 265.1 $ 282.0 13 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses gross margin before special items and operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance.

Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Sales: Color, Additives and Inks $ 486.5 $ 565.6 $ 1,548.0 $ 1,864.2 Specialty Engineered Materials 267.9 258.2 878.4 743.6 Corporate (0.7) (0.5) (2.6) (1.3) Sales $ 753.7 $ 823.3 $ 2,423.8 $ 2,606.5 Gross margin: Color, Additives and Inks $ 156.8 $ 161.3 $ 482.9 $ 546.8 Specialty Engineered Materials 78.3 66.9 263.7 201.3 Corporate (39.8) (32.8) (63.0) (37.4) Gross margin $ 195.3 $ 195.4 $ 683.6 $ 710.7 Selling and administrative expense: Color, Additives and Inks $ 92.3 $ 92.7 $ 284.8 $ 290.1 Specialty Engineered Materials 48.0 35.5 150.6 96.4 Corporate 20.7 26.6 94.5 81.3 Selling and administrative expense $ 161.0 $ 154.8 $ 529.9 $ 467.8 Operating income: Color, Additives and Inks $ 64.5 $ 68.6 $ 198.1 $ 256.7 Specialty Engineered Materials 30.3 31.4 113.1 104.9 Corporate (60.5) (59.4) (157.5) (118.7) Operating income $ 34.3 $ 40.6 $ 153.7 $ 242.9 Depreciation & amortization: Color, Additives and Inks $ 24.6 $ 24.2 $ 76.1 $ 76.1 Specialty Engineered Materials 20.5 12.9 61.6 28.4 Corporate 1.3 2.7 6.8 9.2 Depreciation & Amortization $ 46.4 $ 39.8 $ 144.5 $ 113.7 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 89.1 $ 92.8 $ 274.2 $ 332.8 Specialty Engineered Materials 50.8 44.3 174.7 133.3 Corporate (59.2) (56.7) (150.7) (109.5) Other income (expense), net 1.0 (32.3) 1.5 (31.3) EBITDA including special items $ 81.7 $ 48.1 $ 299.7 $ 325.3 Special items in EBITDA 41.0 71.2 88.1 75.6 Total Company, EBITDA adjusted $ 122.7 $ 119.3 $ 387.8 $ 400.9 13 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses gross margin before special items and operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance.

Adjusted EPS of $0.52 exceeded the $0.48 projection included in the Company’s performance update provided in December and was driven by better-than-expected sales in the Color, Additives and Inks segment. Patterson added, “Our Color, Additives and Inks segment also delivered record operating income of $58 million during the fourth quarter. Three Months Ended December 31, Year Ended December 31, 2020 2019 2020 2019 Sales: Color, Additives and Inks $ 525.8 $ 226.7 $ 1,502.9 $ 1,003.8 Specialty Engineered Materials 190.6 177.5 708.8 745.7 Distribution 305.1 272.4 1,110.3 1,192.2 Corporate and eliminations (24.5) (18.0) (79.9) (79.0) Sales $ 997.0 $ 658.6 $ 3,242.1 $ 2,862.7 Gross margin: Color, Additives and Inks $ 164.3 $ 73.9 $ 484.4 $ 338.4 Specialty Engineered Materials 59.1 47.7 207.6 200.2 Distribution 32.4 31.0 124.0 132.1 Corporate and eliminations (2.9) 0.7 (31.7) (13.5) Gross margin $ 252.9 $ 153.3 $ 784.3 $ 657.2 Selling and administrative expense: Color, Additives and Inks $ 106.8 $ 46.7 $ 303.6 $ 191.0 Specialty Engineered Materials 28.7 28.9 113.2 116.5 Distribution 14.4 14.0 54.5 56.7 Corporate and eliminations 38.0 43.2 123.7 136.2 Selling and administrative expense $ 187.9 $ 132.8 $ 595.0 $ 500.4 Operating income: Color, Additives and Inks $ 57.5 $ 27.2 $ 180.8 $ 147.4 Specialty Engineered Materials 30.4 18.8 94.4 83.7 Distribution 18.0 17.0 69.5 75.4 Corporate and eliminations (40.9) (42.5) (155.4) (149.7) Operating income $ 65.0 $ 20.5 $ 189.3 $ 156.8 11 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses gross margin before special items and operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance.

Design times can be less than three days for colorants. A reconciliation of these measures to their most directly comparable GAAP measures is provided in the tables below. 1 Reconciliation of EBITDA by Segment Three Months Ended December 31, Year Ended December 31, 2020 2019 2020 2019 Sales: Color, Additives and Inks $ 525.8 $ 226.7 $ 1,502.9 $ 1,003.8 Specialty Engineered Materials 190.6 177.5 708.8 745.7 Distribution 305.1 272.4 1,110.3 1,192.2 Corporate and eliminations (24.5) (18.0) (79.9) (79.0) Sales $ 997.0 $ 658.6 $ 3,242.1 $ 2,862.7 Operating income: Color, Additives and Inks $ 57.5 $ 27.2 $ 180.8 $ 147.4 Specialty Engineered Materials 30.4 18.8 94.4 83.7 Distribution 18.0 17.0 69.5 75.4 Corporate and eliminations (40.9) (42.5) (155.4) (149.7) Operating Income $ 65.0 $ 20.5 $ 189.3 $ 156.8 Items Below Operating Income in Corporate: Other income, net $ 11.7 $ 10.7 $ 24.3 $ 12.1 Depreciation & amortization: Color, Additives and Inks $ 27.3 $ 10.7 $ 75.1 $ 42.7 Specialty Engineered Materials 7.4 7.0 30.0 29.5 Distribution 0.3 0.1 0.7 0.5 Corporate and eliminations 2.8 1.0 9.3 5.4 Depreciation & Amortization $ 37.8 $ 18.8 $ 115.1 $ 78.1 EBITDA: Color, Additives and Inks $ 84.8 $ 37.9 $ 255.9 $ 190.1 Specialty Engineered Materials 37.8 25.8 124.4 113.2 Distribution 18.3 17.1 70.2 75.9 Corporate and eliminations (26.4) (30.8) (121.8) (132.2) EBITDA $ 114.5 $ 50.0 $ 328.7 $ 247.0 EBITDA as a % of sales: Color, Additives and Inks 16.1 % 16.7 % 17.0 % 18.9 % Specialty Engineered Materials 19.8 % 14.5 % 17.6 % 15.2 % Distribution 6.0 % 6.3 % 6.3 % 6.4 % Corporate and eliminations nm nm nm nm Total Company 11.5 % 7.6 % 10.1 % 8.6 % nm - not meaningful 2 Three Months Ended December 31, Year Ended December 31, Reconciliation to Adjusted EBITDA: 2020 2019 2020 2019 Net income from continuing operations – GAAP $ 74.7 $ 6.4 $ 133.8 $ 75.7 Income tax expense (17.3) 12.9 5.2 33.7 Interest expense 19.3 11.9 74.6 59.5 Depreciation and amortization from continuing operations 37.8 18.8 115.1 78.1 EBITDA $ 114.5 $ 50.0 $ 328.7 $ 247.0 Special items, before tax 4.2 15.0 66.2 61.7 Interest expense included in special items — — (10.1) — Accelerated depreciation included in special items (0.7) — (3.2) — Adjusted EBITDA $ 118.0 $ 65.0 $ 381.6 $ 308.7 Three Months Ended December 31, 2020 Reconciliation of Adjusted Earnings per Share: Avient Special Items Adjusted Avient 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 % 3 Three Months Ended December 31, 2019 Reconciliation of Pro Forma Adjusted Earnings per Share: Avient Special Items Adjusted Avient Clariant MB Pro Forma Adjustments(1) Pro Forma Adjusted Avient Sales $ 658.6 $ — $ 658.6 $ 263.5 $ 922.1 Operating income $ 20.5 $ 24.6 $ 45.1 $ 13.2 $ 58.3 Interest expense, net (11.9) — (11.9) (11.1) (23.0) Other income, net 10.7 (9.6) 1.1 — 1.1 Income taxes (12.9) 4.9 (8.0) (0.5) (8.5) Net income from continuing operations attributable to Avient shareholders $ 6.4 $ 19.9 $ 26.3 $ 1.6 $ 27.9 Weighted average diluted shares 77.5 Impact to diluted shares from January 2020 equity offering 15.3 Pro forma weighted average diluted shares 92.8 Pro forma adjusted EPS $ 0.30 Reconciliation of Pro Forma Adjusted EBITDA from continuing operations: Operating income and other income, net $ 31.2 $ 15.0 $ 46.2 $ 13.2 $ 59.4 Depreciation and amortization 18.8 — 18.8 15.1 33.9 EBITDA from continuing operations $ 50.0 $ 15.0 $ 65.0 $ 28.3 $ 93.3 EBITDA as a % of sales 10.1 % (1) - Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects of the financing for the acquisition Year Ended December 31, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share: Avient Special Items Adjusted Avient Clariant MB Pro Forma Adjustments(1) Pro Forma Adjusted Avient 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 % (1) - Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects of the financing for the acquisition 4 Year Ended December 31, 2019 Reconciliation of Pro Forma Adjusted Earnings per Share: Avient Special Items Adjusted Avient Clariant MB Pro Forma Adjustments(1) Pro Forma Adjusted Avient 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 % (1) - Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects of the financing for the acquisition Three Months Ended March 31, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share: Avient Special Items Adjusted Avient Clariant MB Pro Forma Adjustments(1) Pro Forma Adjusted Avient Sales $ 711.5 $ — $ 711.5 $ 279.4 $ 990.9 Operating income 52.8 9.7 62.5 23.0 85.5 Interest expense, net (9.4) — (9.4) (12.8) (22.2) Other income, net 1.6 (0.1) 1.5 — 1.5 Income taxes (11.9) (1.0) (12.9) (2.4) (15.3) Net income from continuing operations attributable to Avient shareholders $ 33.1 $ 8.6 $ 41.7 $ 7.8 $ 49.5 Weighted average diluted shares 86.7 Impact to diluted shares from January 2020 equity offering 6.1 Pro forma weighted average diluted shares 92.8 Pro forma adjusted EPS $ 0.53 (1) - Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects of the financing for the acquisition 5 Three Months Ended December 31, 2019 Year Ended December 31, 2019 Reconciliation of pro forma sales, operating income, and EBITDA: CAI Clariant MB Pro Forma Adjustments(1) Pro Forma CAI CAI Clariant MB Pro Forma Adjustments(1) Pro Forma CAI 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 % (1) - Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects of the financing for the acquisition Year Ended December 31, 2020 Reconciliation of pro forma sales, operating income, and EBITDA: CAI Clariant MB Pro Forma Adjustments(1) Pro Forma CAI 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 % (1) - Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects of the financing for the acquisition Free cash flow, defined as cash provided by operating activities excluding items associated with acquisitions and divestitures, less capital expenditures, is considered a non-GAAP financial measure.

Three Months Ended March 31, 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 Gross margin: Color, Additives and Inks $ 171.2 $ 162.0 Specialty Engineered Materials 107.0 93.9 Corporate — (8.3) Gross margin $ 278.2 $ 247.6 Selling and administrative expense: Color, Additives and Inks $ 96.4 $ 96.4 Specialty Engineered Materials 53.6 50.8 Corporate 34.2 43.3 Selling and administrative expense $ 184.2 $ 190.5 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 12 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses gross margin before special items and operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance.

Our expanding portfolio of offerings includes colorants, advanced composites, functional additives, engineered materials, and Dyneema®, the world’s strongest fiber™. Three Months Ended March 31, 2025 2024 Sales: Color, Additives and Inks $ 519.7 $ 515.3 Specialty Engineered Materials 308.4 314.4 Corporate (1.5) (0.7) Sales $ 826.6 $ 829.0 Gross margin: Color, Additives and Inks $ 173.1 $ 171.2 Specialty Engineered Materials 97.8 107.0 Corporate (7.7) — Gross margin $ 263.2 $ 278.2 Selling and administrative expense: Color, Additives and Inks $ 94.5 $ 96.4 Specialty Engineered Materials 50.7 53.6 Corporate 117.3 34.2 Selling and administrative expense $ 262.5 $ 184.2 Operating income: Color, Additives and Inks $ 78.6 $ 74.8 Specialty Engineered Materials 47.1 53.4 Corporate (125.0) (34.2) Operating income $ 0.7 $ 94.0 Depreciation & amortization: Color, Additives and Inks $ 21.7 $ 21.9 Specialty Engineered Materials 21.5 19.6 Corporate 2.1 2.8 Depreciation & amortization $ 45.3 $ 44.3 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 100.3 $ 96.7 Specialty Engineered Materials 68.6 73.0 Corporate (122.9) (31.4) Other expense, net (0.4) (0.9) EBITDA $ 45.6 $ 137.4 Special items, before tax 101.2 6.2 Interest expense included in special items (1.7) — Depreciation & amortization included in special items (0.4) (0.5) Adjusted EBITDA $ 144.7 $ 143.1 12 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses operating income before special items to assess performance and allocate resources because senior management believes that this measure is most useful in understanding current profitability levels and how it may serve as a basis for future performance.

Our expanding portfolio of offerings includes colorants, advanced composites, functional additives, engineered materials, and Dyneema®, the world’s strongest fiber™. Three Months Ended June 30, Six Months Ended June 30, 2025 2024 2025 2024 Sales: Color, Additives and Inks $ 538.6 $ 542.0 $ 1,058.3 $ 1,057.3 Specialty Engineered Materials 329.7 308.1 638.1 622.5 Corporate (1.8) (0.4) (3.3) (1.1) Sales $ 866.5 $ 849.7 $ 1,693.1 $ 1,678.7 Gross margin: Color, Additives and Inks $ 188.0 $ 184.5 $ 361.1 $ 355.7 Specialty Engineered Materials 93.8 94.7 191.6 201.7 Corporate (3.9) (21.6) (11.6) (21.6) Gross margin $ 277.9 $ 257.6 $ 541.1 $ 535.8 Selling and administrative expense: Color, Additives and Inks $ 97.7 $ 98.4 $ 192.2 $ 194.8 Specialty Engineered Materials 53.6 51.9 104.3 105.5 Corporate 30.5 34.8 147.8 69.0 Selling and administrative expense $ 181.8 $ 185.1 $ 444.3 $ 369.3 Operating income: Color, Additives and Inks $ 90.3 $ 86.1 $ 168.9 $ 160.9 Specialty Engineered Materials 40.2 42.8 87.3 96.2 Corporate (34.4) (56.4) (159.4) (90.6) Operating income $ 96.1 $ 72.5 $ 96.8 $ 166.5 Depreciation & amortization: Color, Additives and Inks $ 22.4 $ 21.8 $ 44.1 $ 43.7 Specialty Engineered Materials 22.4 20.8 43.9 40.4 Corporate 1.8 2.3 3.9 5.1 Depreciation & amortization $ 46.6 $ 44.9 $ 91.9 $ 89.2 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 112.7 $ 107.9 $ 213.0 $ 204.6 Specialty Engineered Materials 62.6 63.6 131.2 136.6 Corporate (32.6) (54.1) (155.5) (85.5) Other expense, net (0.5) (0.9) (0.9) (1.8) EBITDA $ 142.2 $ 116.5 $ 187.8 $ 253.9 Special items, before tax 7.3 28.1 108.5 34.3 Interest expense included in special items (0.3) (1.0) (2.0) (1.0) Depreciation & amortization included in special items (0.3) (0.3) (0.7) (0.8) Adjusted EBITDA $ 148.9 $ 143.3 $ 293.6 $ 286.4 12 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses operating income before special items to assess performance and allocate resources because senior management believes that this measure is most useful in understanding current profitability levels and how it may serve as a basis for future performance.

Patterson, President and Chief Executive Officer ON THE COVER Color treatment and selection of this publication’s imagery and content utilized PolyOne’s InVisiOSM Color and Design Services, including application of our “Building Blocks” 2015 Color Inspiration palette. Color and additive solutions include an innovative array of colors, special effects and performance-enhancing and eco-friendly solutions. Color and additive solutions include an innovative array of colors, special effects and performance-enhancing and eco-friendly solutions.