C A S T A N D B L O W N F I L M LEADING PACKAGING FILM SUPPLIER • Improve quality, limiting melt fracture and die built up • Increase productivity, reducing cleaning frequency • More sustainable manufacturing process • Regulatory compliance HIFORMER™ Liquid Polymer Processing Aid AVIENT SOLUTION • Increased processing efficiency and overall productivity with low let down ratio • Delivered significant improvement in melt fracture and die build up • Sustainability benefits provided, including possibility for longer production runs, reduced energy consumption and less waste WHY AVIENT K E Y RE Q U I RE M E N T S P R O D U C T I V I T Y + S U S TA I N A B I L I T Y LEARN MORE

Refer to Attachment 7 Reconciliation of Non-GAAP Financial Measures for details regarding adjustments to previously reported results to arrive to the pro forma financial metrics. Attachment 7

Refer to Attachment 7 Reconciliation of Non-GAAP Financial Measures for details regarding adjustments to previously reported results to arrive to the pro forma financial metrics.    Attachment 7

Sales into these end markets increased 3% and 7% respectively during the quarter.  Attachment 7

Refer to Attachment 7 Reconciliation of Non-GAAP Financial Measures for details regarding adjustments to previously reported results to arrive to the pro forma financial metrics. Attachment 7

Antitrust Laws 2 Antitrust Law Violations 3 Antitrust Potential Areas of Concern 3 Conclusion 5 Reporting Possible Violations 6 Avient Ethics Hotline 6 Protection from Retaliation 6 Antitrust Checklist 7 Quick Reference: Antitrust DO’s and DON’Ts 9 Guide For Compliance Avient is committed to promoting fair competition and free enterprise in the marketplace. Do not attend meetings with competitors (including trade association gatherings) at which prices or any of the foregoing subjects are discussed. 7. Even in the Antitrust Checklist 7 HOME | TOC Updated: February 2021 first instance, make every effort to verify and document the competing price prior to offering a distributor a lower price intended to meet that competitive price; do not, however, attempt to verify the competing price by contacting the competitor directly.

Refer to Attachment 7 Reconciliation of Non-GAAP Financial Measures for details regarding adjustments to previously reported results to arrive to the pro forma financial metrics. 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. See Attachment 3 for a definition and summary of special items and Attachment 7 for a summary of pro forma adjustments associated with the Clariant Color Acquisition necessary to reflect Clariant Color adjusted results in all periods presented.

Refer to Attachment 7 Reconciliation of Non-GAAP Financial Measures for details regarding adjustments to previously reported results to arrive to the pro forma financial metrics. 2 Webcast Details The company will host a webcast at 9:00 a.m. See Attachment 3 for a definition and summary of special items and Attachment 7 for a summary of pro forma adjustments associated with the Clariant MB Acquisition necessary to reflect Clariant MB adjusted results in all periods presented. 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.

Using phase barriers made of Avient’s OnFlex™ S HF, HF 7001, and Synprene or Synprene™ RT thermoplastic elastomers (TPEs) will help you deliver on that promise. RoHS compliant – Avient OnFlex S HF, HF 7001, and Synprene or Synprene RT comply with all relevant regulations including RoHS, and specific grades qualify as UL 94 V-0. In addition, OnFlex S HF, HF 7001, and Synprene or Synprene RT complies with REACH SVHC.

Глобальная антимонопольная политика компании Avient Содержание Общие сведения о политике 1 Общий обзор Антимонопольного законодательства США 2 Нарушения антимонопольного законодательства 3 Потенциальные проблемные области в сфере антимонопольного законодательства 3 Заключение 6 Фиксация возможных нарушений 7 Горячая линия по вопросам этики компании Avient 7 Защита от преследований 7 Контрольный список по соблюдению требований антимонопольного законодательства 8 Краткий справочник: Что следует и не следует делать в рамках антимонопольной политики 10 Руководство по нормативно- правовому соответствию Компания Avient привержена созданию справедливой конкуренции и свободного предпринимательства на рынке. Горячая линия по вопросам этики компании https://www.Avient.com/company/policies-and- governance/ethics-hotline телефону 1-877-228-5410 7 Содержание Пересмотренная антимонопольная политика в 2021 г. mailto:ethics.officer%40avient.com%20%20? Не присутствуйте на встречах с конкурентами (включая собрания торговых ассоциаций), где обсуждаются цены или любые упомянутые выше темы. 7.