Ms. Rose Vice President, Corporate Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com 7 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended December 31, Year Ended December 31, 2021 2020 2021 2020 Sales $ 1,201.5 $ 997.0 $ 4,818.8 $ 3,242.1 Operating Income 74.0 65.0 381.2 189.3 Net income from continuing operations attributable to Avient shareholders 29.8 74.2 230.8 132.0 Basic earnings per share from continuing operations attributable to Avient shareholders $ 0.33 $ 0.81 $ 2.53 $ 1.47 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.32 $ 0.81 $ 2.51 $ 1.46 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 December 31, Year Ended December 31, 2021 2020 2021 2020 Sales: Color, Additives and Inks $ 581.3 $ 525.8 $ 2,401.6 $ 1,502.9 Specialty Engineered Materials 228.2 190.6 918.9 708.8 Distribution 425.0 305.1 1,630.9 1,110.3 Corporate and eliminations (33.0) (24.5) (132.6) (79.9) Sales $ 1,201.5 $ 997.0 $ 4,818.8 $ 3,242.1 Gross margin: Color, Additives and Inks $ 164.5 $ 164.3 $ 727.5 $ 484.4 Specialty Engineered Materials 60.0 59.1 257.4 207.6 Distribution 36.5 32.4 155.8 124.0 Corporate and eliminations (7.9) (2.9) (41.1) (31.7) Gross margin $ 253.1 $ 252.9 $ 1,099.6 $ 784.3 Selling and administrative expense: Color, Additives and Inks $ 103.3 $ 106.8 $ 424.4 $ 303.6 Specialty Engineered Materials 31.2 28.7 125.4 113.2 Distribution 14.8 14.4 62.6 54.5 Corporate and eliminations 29.8 38.0 106.0 123.7 Selling and administrative expense $ 179.1 $ 187.9 $ 718.4 $ 595.0 Operating income: Color, Additives and Inks $ 61.2 $ 57.5 $ 303.1 $ 180.8 Specialty Engineered Materials 28.8 30.4 132.0 94.4 Distribution 21.7 18.0 93.2 69.5 Corporate and eliminations (37.7) (40.9) (147.1) (155.4) Operating income $ 74.0 $ 65.0 $ 381.2 $ 189.3 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.

Ms. Rose Vice President, Marketing and Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com 6 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended March 31, 2024 2023 Sales $ 829.0 $ 845.7 Operating income 94.0 57.1 Net income from continuing operations attributable to Avient shareholders 49.4 20.8 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.54 $ 0.23 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 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.

WITH ADDITIONAL FACILITIES LISTED ON ATTACHED ANNEX) Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: Page 2 of 10 ABS Quality Evaluations Avient Corporation ISO 14001:2015 Certificate Of Conformance ANNEX At Below Facilities: Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation. Activity: Design and Manufacture of Colorants and Additives for Plastics Page 6 of 10 ABS Quality Evaluations Avient Corporation ISO 14001:2015 Certificate Of Conformance ANNEX At Below Facilities: Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation. Activity: Design and Manufacture of Plastics Compounding Material and Thermoplastic Elastomers Page 10 of 10 ABS Quality Evaluations Avient Corporation ISO 14001:2015 Certificate Of Conformance ANNEX At Below Facilities: Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation.

WITH ADDITIONAL FACILITIES LISTED ON ATTACHED ANNEX) Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: Page 2 of 10 ABS Quality Evaluations Avient Corporation ISO 14001:2015 Certificate Of Conformance ANNEX At Below Facilities: Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation. Activity: Design and Manufacture of Colorants and Additives for Plastics Page 6 of 10 ABS Quality Evaluations Avient Corporation ISO 14001:2015 Certificate Of Conformance ANNEX At Below Facilities: Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation. Activity: Design and Manufacture of Plastics Compounding Material and Thermoplastic Elastomers Page 10 of 10 ABS Quality Evaluations Avient Corporation ISO 14001:2015 Certificate Of Conformance ANNEX At Below Facilities: Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation.

These short fiber formulations combine select engineering resins with reinforcing additives such as carbon powder, carbon fiber, nickel-coated carbon fiber and stainless steel fiber, to provide the precise level of electrical conductivity required for your application.    Technical Data Sheets Browse our library of product data sheets containing technical descriptions and details.

RC14001®:2015 Certificate No: 55334 Effective Date: 30 October 2017 Expiration Date: 29 October 2020 Issue Date: 30 October 2017 Alex Weisselberg, President DESIGN AND MANUFACTURE OF COLOR CONCENTRATES Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by:

LoC No: 798019/2023 Page 1 of 1 Letter of Conformity Good Manufacturing Practices — Guidelines The Letter of Conformity is granted to Polyone Polymers India Private Limited Plot No.

Certificate Of Conformance This is to certify that the Quality Management System of: Avient de México, S.A. de C.V. Toluca 2000 Toluca Estado de México 50233 Mexico USI#6RS5T3 (WITH ADDITIONAL FACILITIES LISTED ON ATTACHED ANNEX) has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: IATF 16949:2016 , First Edition The Quality Management System is applicable to: DESIGN AND MANUFACTURE OF COLOR CONCENTRATES Certificate No: 63431 IATF No: 0566308 Effective Date: 17 FEB 2025 Expiration Date: 16 FEB 2028 Revision Date: 17 FEB 2025 Dominic Townsend, President Copyright as of the Effective Date, ABS Quality Evaluations, Inc. Page 1 of 2 https://abs.ez2xs.com IATF 16949:2016 , First Edition Certificate Of Conformance ANNEX Certificate No: 63431 IATF No: 0566308 Avient de México, S.A. de C.V.

Bright camo is a key pattern across bedding, coats and harnesses while neon pops are featured on products from dog clothing to toys and accessories, blending functionality and fun. Taking the lead from human performance wear, dog coats and harnesses feature neon shades that are exciting and increase pet visibility.

We are better together through: Keeping Safety First — PolyOne and Clariant are both ACC Responsible Care® companies, and nothing is more important than the health, safety and well-being of our people. Full conformance will be built over subsequent reporting cycles. • Published 2030 performance goals, further enhancing our position as a responsible business creating sustainable, long-term value for its stakeholders. • Scope included legacy PolyOne operations. Free cash flow conversion calculated as (EBITDA – Capex) / EBITDA Median: 84% Median: 78% HIGH FREE CASH FLOW CONVERSION Avient reflects 2021 estimated EBITDA of $560M and excludes one-time synergy capture CAPEX ($20M) Source: Peer data per Bloomberg market data as of June 4, 2021 87 89 87 86 83 81 76 88 85 83 82 81 80 78 78 78 76 72 71 69 50 18 A vi en t K W R P P G R P M A V Y F U L G C P F M C H X L U N V R IF F E C L A S H F O E C E E M N B N R H U N G R A K R A S C L A L B Source: Peer data per Bloomberg market data as of June 4, 2021 Total Enterprise Value / 2021E EBITDA Our current valuation with updated guidance implies an EBITDA multiple that is below specialty formulator peers and the majority of our chemical peers.