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CLEVELAND – PolyOne Corporation (NYSE: POL), a premier global provider of specialized polymer materials, services and solutions, recently released its InVisiOSM Color Inspiration 2015, a collection of six insightful color directions, visual effects and textural influences.

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AVNT-2022.09.30-News Release 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Third Quarter 2022 Results • Completed the acquisition of DSM Protective Materials (including Dyneema®) on September 1st and the sale of the Distribution business on November 1st • $750 million of after-tax proceeds from the sale of Distribution used to redeem all Senior Unsecured Notes due in 2023 and pay down a portion of term loan debt • GAAP EPS from continuing operations of ($0.30) includes special items of ($0.75) primarily associated with acquisition-related costs and an adjustment to environmental reserves • Adjusted EPS excluding intangible amortization of $0.59 is in line with the company’s guidance of $0.58 provided on September 27th • Revised full year adjusted EPS guidance to $2.60 primarily as a result of recently announced COVID lockdowns CLEVELAND – November 2, 2022 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable solutions, today announced its third quarter 2022 results. Adjusted EPS excluding intangible amortization for the third quarter of $0.59 was slightly below prior year of $0.61. 2 “As we announced in our September 27th release, we are experiencing weaker global demand conditions precipitated by the war in Ukraine, recession fears, higher energy costs and inflation,” said Robert M. For more information, visit www.avient.com/. http://www.avient.com/ 5 Forward-looking Statements In this press release, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995.

The sheet producer began experimenting with material changes in-house, but struggled to achieve consistency of release. This additive technology has proven effective for use in other applications such as a mold release during thermoforming, helping to reduce processing interruptions. Avient offers OnCap™ Denesting additive solutions to enable effective package separation and improve manufacturing operations such as mold release during thermoforming and packaging pick and place operations.

AVNT-2022.06.30-News Release 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Second Quarter 2022 Results • Second quarter sales grew to $1.3 billion, a 5% increase over the prior year quarter, and an all-time quarterly record • GAAP EPS increased 24% to $0.92 compared to $0.74 in the prior year quarter • Adjusted EPS increased 13% to $0.98 compared to $0.87 in the prior year quarter, exceeding second quarter guidance of $0.92. For more information, visit www.avient.com/. 4 Forward-looking Statements In this press release, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Three Months Ended June 30, 2022 2021 GAAP Results Special Items Adjusted Results GAAP Results Special Items Adjusted Results Income from before income taxes $114.7 $ 3.4 $ 118.1 $ 89.8 $ 14.2 $ 104.0 Income tax expense - GAAP (30.0) — (30.0) (20.4) — (20.4) Income tax impact of special items (Attachment 3) — (0.8) (0.8) — (3.4) (3.4) Tax adjustments (Attachment 3) — 2.5 2.5 — 0.9 0.9 Income tax (expense) benefit $ (30.0) $ 1.7 $ (28.3) $ (20.4) $ (2.5) $ (22.9) Effective Tax Rate(1) 26.1 % 23.9 % 22.7 % 22.0 % (1) Rates may not recalculate from figures presented herein due to rounding 13 Six Months Ended June 30, 2022 2021 GAAP Results Special Items Adjusted Results GAAP Results Special Items Adjusted Results Income from before income taxes $225.8 $ 11.1 $ 236.9 $192.4 $ 16.6 $ 209.0 Income tax expense - GAAP (56.6) — (56.6) (43.3) — (43.3) Income tax impact of special items (Attachment 3) — (2.8) (2.8) — (4.3) (4.3) Tax adjustments (Attachment 3) — 4.0 4.0 — 2.0 2.0 Income tax (expense) benefit $ (56.6) $ 1.2 $ (55.4) $ (43.3) $ (2.3) $ (45.6) Effective Tax Rate(1) 25.0 % 23.4 % 22.5 % 21.8 % (1) Rates may not recalculate from figures presented herein due to rounding Reconciliation of EBITDA by Segment Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Operating income: Color, Additives and Inks $ 93.6 $ 86.3 $ 188.1 $ 175.1 Specialty Engineered Materials 36.6 37.3 76.3 71.5 Distribution 27.1 23.7 51.3 47.7 Corporate and eliminations (27.8) (39.2) (57.6) (65.8) Operating income $ 129.5 $ 108.1 $ 258.1 $ 228.5 Items below OI in Corporate: Other income, net $ 1.4 $ 1.2 $ 0.8 $ 2.7 Depreciation & amortization: Color, Additives and Inks $ 25.9 $ 25.3 $ 51.9 $ 52.6 Specialty Engineered Materials 7.7 8.1 15.5 15.9 Distribution 0.2 0.2 0.4 0.4 Corporate and eliminations 2.7 0.2 6.5 2.0 Depreciation & Amortization $ 36.5 $ 33.8 $ 74.3 $ 70.9 EBITDA: Color, Additives and Inks $ 119.5 $ 111.6 $ 240.0 $ 227.7 Specialty Engineered Materials 44.3 45.4 91.8 87.4 Distribution 27.3 23.9 51.7 48.1 Corporate and eliminations (25.1) (39.0) (51.1) (63.8) Other income, net 1.4 1.2 $ 0.8 $ 2.7 EBITDA $ 167.4 $ 143.1 $ 333.2 $ 302.1 14 Three Months Ended June 30, Six Months Ended June 30, Reconciliation to EBITDA and Adjusted EBITDA: 2022 2021 2022 2021 Net income – GAAP $ 84.7 $ 69.4 $ 169.2 $ 149.1 Income tax expense 30.0 20.4 56.6 43.3 Interest expense 16.2 19.5 33.1 38.8 Depreciation and amortization 36.5 33.8 74.3 70.9 EBITDA $ 167.4 $ 143.1 $ 333.2 $ 302.1 Special items, before tax 3.4 14.2 11.1 16.6 Depreciation and amortization included in special items (1.1) 1.4 (3.2) 0.8 Adjusted EBITDA $ 169.7 $ 158.7 $ 341.1 $ 319.5 Three Months Ended June 30, 2021 Reconciliation to Condensed Consolidated Statements of $ EPS Net income attributable to Avient shareholders $ 68.8 $ 0.74 Special items, after tax (Attachment 3) 11.7 0.13 Adjusted net income / EPS - excluding special items 80.5 0.87 FX adjustment (4.9) (0.05) Adjusted net income / EPS - excluding special items, adjusted for FX $ 75.6 $ 0.82 NEWS RELEASE Attachment 1

Network capable Data acquisition and SPC Web enabled Touch screen controller User login security Gravimetric functions Custom configuration Remote access functions QUICK CHANGEOVER RESERVOIR The reservoir cassette is a key operating element of the FlexOne unit, allowing users to quickly changeover color.

2 Bribery of Government Officials 2 Commercial Bribery 2 Facilitation Payments and Kickbacks 3 Working with Agents, Distributors and Other Third Parties 3 Due Diligence and Approval Process 3 Red Flags 3 Accounting and Record Keeping Requirements 4 Reporting Possible Violations 4 Avient Ethics Hotline 4 Protection from Retaliation 4 Quick Reference: ABAC DOs and DON’Ts 5 1 Our Global Policy on Anti-Bribery and Anti-Corruption Avient strictly prohibits fraud, bribery, and other corrupt business practices in all of our business operations anywhere in the world. subject= http://avient.ethicspoint.com 5 Quick Reference: ABAC DOs AND DON’Ts DO ✓ Know that Avient prohibits any form of bribery and corruption and does not allow facilitation payments ✓ Be familiar with applicable aspects of our ABAC Policies and communicate them to subordinates and third parties ✓ Ask questions if the Policies or actions required to be taken are unclear ✓ Promptly report violations or suspected violations to your supervisor, the Legal Department or the Ethics Hotline ✓ Know that “value” is not necessarily measured in monetary terms ✓ Know that bribes can include the following: • Cash and cash equivalents (gift cards or gift certificates) • Gifts, entertainment and hospitality where there is no clear business purpose or they are in excess of business needs • Payment of travel expenses or vacations • Paying a government official to ignore an applicable customs requirement or to accelerate a tax refund • Personal services, favors, and loans • Offers of employment or other benefits to a family member or friend of the individual who has influence • Political party and candidate contributions • Charitable donations and sponsorships • Other less obvious items include in-kind contributions, investment opportunities and favorable or steered subcontracts ✓ Know that the prohibition applies whether an item would benefit the individual directly or another person, such as a family member, friend or business associate ✓ Keep books, records, and accounts in reasonable detail, and accurately and fairly reflect the transaction ✓ Conduct due diligence on agents, distributors, and other third parties prior to engagement and during the relationship and obtain Legal Department approval ✓ Properly manage and monitor business activities conducted through third-parties DON’T x Offer, promise, pay, or authorize the payment of anything of value to any government official and/or private sector employees to help Avient obtain or keep business or secure some other improper business advantage.

AVNT-2023.06.30-News Release 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Second Quarter 2023 Results • GAAP EPS of $0.24 includes special items and amortization expense • Adjusted EPS of $0.63 exceeded guidance of $0.60, driven by better-than-projected margins in both segments • Full year adjusted EPS guidance of $2.40 maintained reflecting continued weak demand conditions, offset by adjusted EBITDA margins expected to increase from 15.6% to 16.0% for the year • Most recent Sustainability Report published, highlighting the company’s progress on ESG initiatives focused on People, Products, Planet and Performance • Sustainability Day for investors to be held on September 20th will focus on Avient’s sustainable solutions portfolio and the demand trends that will drive long-term growth CLEVELAND – July 27, 2023 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable solutions, today announced its second quarter 2023 results. New Sustainability Report and Upcoming Sustainability Day The company also announced the release of its latest Sustainability Report, now available at www.avient.com/sustainability. Registration information to access the Sustainability Day event will be provided in a news release in advance of the event. https://www.avient.com/sustainability 3 Webcast Details Avient will host a webcast on Thursday, July 27, 2023 at 8:00 a.m.

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