EPS (1) $0.14 $2.67 $3.04 2006 2018 2022PF TOP-TIER SUSTAINABILITY PERFORMANCE AND RECOGNITION Industry Sustainability Standards 90th percentile 84th ESG Ratings Performance 3 1 4 10 PEOPLE C U L T U R E I S E V E R Y T H I N G Community Service 7x Safer than Industry Average World-Class Safety Leadership Development Over $17 million raised since 2010 Diversity & Inclusion 11 2022 RE SU LT S Q4 EBITDA BRIDGE (PRO FORMA TOTAL COMPANY) 13 $ millions CAI: Price / Mix 42 Inflation (20) SEM: Price / Mix 14 Inflation (10) Net Price Benefit 26 Wage and Energy Inflation (13) Clariant Color Integration Synergies 4 Incentives, Other Employee Costs 21 FX (10) Q4 2022 $107 Adjusted EBITDA Q4 2021 $ 132 Demand (50) Russia Import Sales (3) • Demand contraction especially prevalent in EMEA and Asia • Pricing continues to cover inflation of raw materials, wages and energy PROVEN TRACK RECORD OF STRONG AND IMPROVING FREE CASH FLOW GENERATION 14 • Periods of economic weakness have driven higher levels of cash generation due to working capital management • Anticipate continued strong free cash flow generation and conversion despite global uncertainty 78% 78% 80% 80% 81% 78% 84% 83% 80% 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 2014 2015 2016 2017 2018 2019 2020 2021 2022 0 50 100 150 200 250 300 350 400 F re e C as h F lo w C o n ve rs io n F re e C as h F lo w FCF $ AVNT FCF Conversion % S&P FCF Conversion % Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA. 2020 is pro forma for Clariant Color and 2022 is pro forma for Avient Protective Materials. $600 $592 2021 2022 $3.02 $3.04 2021 2022 FULL YEAR 2022 PERFORMANCE (TOTAL COMPANY PRO FORMA) 15 Sales Adjusted EBITDA $3,712 $3,653 2021 2022 -2% Adjusted EPS -1% + 1% (in millions) (in millions) (+4% excluding FX) (+5% excluding FX) (+9% excluding FX) FULL YEAR 2022 SEGMENT PERFORMANCE 16 CAI $2,402 $2,355 Sales ($ in millions) $409 $402 EBITDA SEM Pro Forma $1,308 $1,300 Sales $278 $272 EBITDA (+4% excluding FX) - 2% -1% (+5% excluding FX) - 2% (+4% excluding FX) - 2% (+2% excluding FX) PRO FORMA FULL YEAR EPS BRIDGE 17 Pro Forma 2021 Adjusted EPS 3.02$ Foreign Currency (0.23) Russia Import Sales (0.07) Outdoor High Performance (0.13) Color, Additives and Inks 0.18 Specialty Engineered Materials 0.24 Corporate Costs / Other 0.03 Pro Forma 2022 Adjusted EPS 3.04$ FULL YEAR EBITDA BRIDGE (PRO FORMA TOTAL COMPANY) 18 $ millions CAI: Price / Mix 247 Inflation (176) SEM: Price / Mix 121 Inflation (77) Net Price Benefit 115 Wage and Energy Inflation (47) Clariant Color Integration Synergies 23 Incentives, Other Employee Costs 43 FX (34) Full Year 2022 $592 Adjusted EBITDA Full Year 2021 $ 600 Demand (99) Russia Import Sales (9) • Demand primarily impacted by China lockdowns, 4th quarter industrywide destocking and declining consumer sentiment • Pricing outpaced inflation of raw materials, wages and energy 2023 G U IDA N CE $125 $530 Q1 FY $0.55 $2.40 Q1 FY 2023 GUIDANCE 20 Sales Adjusted EBITDA $845 $3,450 Q1 FY Adjusted EPS (in millions) (in millions) CASH FLOW / BALANCE SHEET 21 • IT investment to further integrate acquired businesses and capture operational efficiencies • Restructuring actions to streamline operations and improve profitability, primarily in Europe ($ millions) 2023E Cash Flow from Operating Activities 350$ Less: Run-Rate CapEx (110) CapEx for IT System Upgrade (25) CapEx for Restructuring (15) Total CapEx (150) Free Cash Flow 200$ Adjusted EBITDA 530$ Net Debt / Adjusted EBITDA 2.9x K E Y G R O W T H D R I V E R S A N D T R A N S F O R M E D P O R T F O L I O GROWTH DRIVERS: PROVEN SUCCESS 23 (1) Pro forma for the acquisition of Avient Protective Materials (APM) COMPOSITES $51 $84 $212 $668 2016 2018 2020 2022 Long Term Growth Rate 10% Organic CAGR 10% HEALTHCARE $108 $113 $231 $293 2016 2018 2020 2022 Long Term Growth Rate 8-10% Organic CAGR 11% ASIA/EMERGING REGIONS $265 $358 $726 $830 2016 2018 2020 2022 Long Term Growth Rate 5% Organic CAGR 12% $340 $455 $790 2016 2018 2020 2022 $1,175 SUSTAINABLE SOLUTIONS Long Term Growth Rate 8-12% Organic CAGR 11% (1) (1)(1) (Sales in $ millions) #1 Color Formulator Dyneema® - World’s Strongest Fiber™ #1 in Composites applications for outdoor high performance #1 in Performance Inks Customized solutions 140+ PhDs on staff Rapid development of innovative products Extensive patent (2,500+) portfolio 33% Vitality Index Better-positioned toward stable, high-growth end markets Consumer, packaging, healthcare and defense comprise nearly 60% of sales Agnostic to raw materials, helping all customers achieve their goals Broad portfolio of diversified sustainable solutions 90%+ of our innovation pipeline invested in sustainable solutions Long-term growth rate well above GDP with expectations of 8-12% LEVERAGING OUR TRANSFORMED PORTFOLIO 24 Healthcare 8% Packaging 24% Consumer 20% Building & Construction 10% Industrial 15% Transportation 9% Energy 4% Telecom. 4% 2022 PF $3.65B sales Defense 6% Leading Positions Sustainable SolutionsDiversified IndustriesSpecialty Formulator (1) 2022 Pro forma for the acquisition of Avient Protective Materials (2) 2020 Pro forma for the acquisition of Clariant Color (1)(2) (1) $340M $455M $790M 2016 2018 2020PF 2022PF $1,175M P EE R C O M PAR IS O N S AVIENT IS ASSET LIGHT Capex / Revenue 2023E (%) Avient Specialty Formulators Other Specialty / Chemical Companies Source: Peer data per Bloomberg as of February 13, 2023 Note: Avient reflects 2023 estimated revenue of $3,450 and estimated run-rate CAPEX of $110M. 27 3 2 3 3 4 4 3 4 5 5 5 6 7 7 A vi en t K W R P P G F U L A V Y R P M F M C H U N H X L C E E C L A S H S C L E M N FREE CASH FLOW CONVERSION Source: Peer data per Bloomberg as of February 13, 2023 Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA. Free Cash Flow Calculation Year Ended December 31, 2014 2015 2016 2017 2018 2019 2020 2021 2022 Cash provided by operating activities 208.4 227.2 221.3 202.4 253.7 300.8 221.6 233.8 398.4 Capital expenditures (92.8) (91.2) (84.2) (79.6) (76.0) (81.7) (63.7) (100.6) (105.5) Payment of post-acquisition date earnout liability — — — — — — 38.1 — — Taxes paid on gain on divestiture — — — — — — — 142.0 — — Adjusted Free Cash Flow $ 115.6 $ 136.0 $ — $ 137.1 $ 122.8 $ 177.7 $ 219.1 $ 338.0 $ 133.2 $ 292.9 3 Three Months Ended December 31, Year Ended December 31, 2022 2021 2022 2021 Sales: Color, Additives and Inks $ 490.8 $ 581.3 $ 2,355.0 $ 2,401.6 Specialty Engineered Materials 300.8 226.3 1,044.4 911.6 Corporate (1.2) (0.5) (2.5) 2.3 Sales $ 790.4 $ 807.1 $ 3,396.9 $ 3,315.5 Operating income: Color, Additives and Inks $ 44.3 $ 61.2 $ 301.0 $ 303.1 Specialty Engineered Materials 35.2 27.1 140.1 125.5 Corporate (79.1) (38.1) (197.8) (148.9) Operating income $ 0.4 $ 50.2 $ 243.3 $ 279.7 Other expense, net: $ (28.4) $ (5.3) $ (59.7) $ (1.0) Depreciation & amortization: Color, Additives and Inks $ 25.2 $ 26.5 $ 101.3 $ 105.7 Specialty Engineered Materials 20.3 7.9 48.7 31.7 Corporate 3.2 3.6 12.5 7.7 Depreciation & Amortization $ 48.7 $ 38.0 $ 162.5 $ 145.1 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 69.5 $ 87.7 $ 402.3 $ 408.8 Specialty Engineered Materials 55.5 35.0 188.8 157.2 Corporate (76.0) (34.5) (185.3) (141.2) Other expense, net $ (28.4) $ (5.3) $ (59.7) $ (1.0) EBITDA $ 20.6 $ 82.9 $ 346.1 $ 423.8 Special items in EBITDA 86.8 18.9 162.5 55.4 EBITDA - excluding special items $ 107.4 $ 101.8 $ 508.6 $ 479.2 APM pro forma adjustments - 2021 — 30.4 — 120.5 APM pro forma adjustments - 8 months 2022* — — 83.1 — Pro forma EBITDA $ 107.4 $ 132.2 $ 591.7 $ 599.7 * Pro forma adjustment for January - August 2022 APM results (period before Avient ownership).

Avient Achieves Reexamination Certificate for Dyneema® Cut-Resistant Yarn Patent

With heightened geopolitical concerns and macroeconomic weakness, we view European business conditions as a headwind for the remainder of the year and going into 2015." Patterson continued, "Fortunately, we have a proven strategy, a relentless focus on execution and an outstanding management team aligned with achieving our 2015 goals.

Registration details will be released shortly.

Within the limits of Article 5, Seller warrants good and clear title in goods subject to the sale and that the Product conforms at the time of shipment to a Certificate of Analysis, a Certificate of Compliance, or a Product Specification Sheet, if any such document exists, and other specifications signed by Seller (“Specifications”).

News Release - AVNT-2021.12.31-News Release 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Record Fourth Quarter and Full Year 2021 Results Financial Performance • Fourth quarter and full year sales increased 21% to $1.2 billion and 27% to $4.8 billion, respectively • Fourth quarter and full year GAAP EPS of $0.32 and $2.51 compared to $0.81 and $1.46 in the prior year • Fourth quarter and full year adjusted EPS increased 12% to $0.58 and 58% to $3.05, respectively • Initiates 2022 guidance of $5.1 billion in sales and $3.50 in adjusted EPS Milestone Achievements • Increased dividend on an annualized basis by 12% to $0.95; the 11th year in a row of an annual increase • Increased EBITDA contribution from Clariant acquisition from $133 to $205 million and reduced net debt to adjusted EBITDA to 2.2x, one year ahead of schedule • Joined the United Nations Global Compact, recognized as one of America’s Most Responsible Companies by Newsweek, and earned the company's third consecutive Great Place to Work® certification. In December, we completed our annual employee engagement survey and received our 3rd consecutive Great Place to Work® certification from the Great Place to Work Institute.” 3 2022 Outlook “As we discussed during our Investor Day in December, we have momentum in growing sustainable solutions, solving healthcare challenges and broadening advanced composite applications,” said Jamie A.

Registration information to access the Sustainability Day event will be provided in a news release in advance of the event.

We will be sending out registration information shortly and will offer both in-person and virtual options in light of the continuing impacts of the pandemic."

Investor Day 2021 Shaping a Sustainable Future Bob Patterson Avient Corporation 4 End Market Transformation 5 Healthcare 4% Packaging 8% Consumer 10% Building & Construction 43% Transportation 14% Industrial 15% Energy 4% Telecom. 2% 2006 2021E Healthcare 14% Consumer 23% Building & Construction 10% Transportation 12% Industrial 16% Energy 2% Telecom. 4% Packaging 19% Avient Corporation Avient: Who We Are 39 22 9 34 • U.S. and Canada • Latin America • Europe, Middle East & Africa • Asia 25,000+ CUSTOMERS Headquartered in Avon Lake, OH (Cleveland) 8,600+ employees 100+ manufacturing plants Key Financial Data 2021E Sales $4.75 billion 2021E EBITDA $580 million 2021E EPS $3.00 87% of EBITDA from specialty applications >70% ARE CUSTOMIZED SOLUTIONS TO UNIQUE SPECIFICATIONS of sales Avient Corporation 6 46% 66% 87% 0% 20% 40% 60% 80% 100% 2005 2010 2015 2021E % o f A d ju st ed E B IT D A (1 ) JVs Performance Products & Solutions Distribution Specialty 7% (1) Adjusted EBITDA is EBITDA excluding corporate costs and special items (2) 2021 includes full synergies from Clariant color acquisition (2) Specialty Transformation Avient Corporation 7 CAI (1) Financial information is pro forma to include a full year of Clariant Color business acquisition 2.7% 15.2% 17.0% 2006 2019 2021E 1.8% 15.2% 17.6% 2006 2019 2021E (1) SEM • Continued portfolio transformation to high-growth end markets and sustainable solutions • Clariant synergy realization • Investments in composites and outdoor high performance applications drive growth and mix improvements Specialty EBITDA Margin Expansion Avient Corporation 8 (1) (1) We are a Formulator CUSTOM FORMULATION Avient Corporation 9 Sustainability for a Better Tomorrow *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Color business Revenue From Sustainable Solutions* 2016-2021 2016 2017 2018 2019 2020PF** 2021E $405M $455M $340M $550M $790M $930M $270 215 170 90 90 30 45 20 $930M2021E Sales ($ in millions) Avient Corporation 10 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 $1.96 $2.06 $2.21 $2.43 $1.51 $1.69 $1.93 $3.00 2009 2010 2011 2012 2013 2014 2015 2016* 2017* 2018 20182 2019 2020 2021E Pro Forma for sale of PP&S (1): Pro Forma for sale of DSS (2): Pro Forma for full year of the Clariant Color acquisition 2018(1) (1) (2) Adjusted EPS Growth Avient Corporation 11 $133 $205 2019PF 2021E Clariant Color: Transformational Acquisition 12 Clariant Color EBITDA Growth Purchase Price Multiple 10.8x 7.0x 6.0x 2019PF 2021E 2021E w/ Full Synergies • Acquisition of Clariant Color business significantly expanded presence in healthcare, packaging and consumer end markets • Strength of portfolio – double-digit annual EBITDA growth since acquisition • On-track to realize $52 million of expected synergies in 2021 • Acquisition completed on July 1, 2020 for $1.45 billion. China and Southeast Asia T R A C K R E C O R D O F G R O W T H & E X P A N S I O N Regional headquarters and innovation center established in 2015 Built largest manufacturing site within Avient in 18 months and commissioned in 2021 Expand and increase Healthcare accredited (ISO 13485) sites 2X 18 plants > 2.5X 500 commercial resources > 3X $680M revenue Chuzhou, China Singapore – ISO13485 SiteRegional Innovation Center, Shanghai 91Avient Corporation Metrics represent growth since 2010 India Landscape Avient Corporation 92 Most populous country in the world by 2030 One of the youngest population in the world feeding the talent pool Growing middle class driving the need for better quality goods and services “Made In India” and “Digital India” initiative driving foreign and domestic investments India M O M E N T U M T O E X P A N D 4X 4 plants > 10X 100 commercial resources > 20X $70M revenueVashere Pune Kalol Rania 93Avient Corporation Establishing an Innovation Center to support local technology needs and global R&D efforts Investment in resources, capacity, and capability to support growth and geographic expansion to North and South Vashere Pune Metrics represent growth since 2010 Latin America 94Avient Corporation Latin America Landscape Avient Corporation 95 Region’s economy expected to double by 2030 Top 6 countries contribute 75% of the region’s GDP Mexico remains a manufacturing hub for North America Growing middle class population Latin America L E V E R A G E A N D E X P A N D 2X 9 plants > 5X 200 commercial resources > 20X $400M revenue Investment in capacity, and capability to support domestic growth Grow commercial resources to support geographic expansion Santa Clara, Mexico Toluca, Mexico Cota, Colombia Guatemala, Guatemala Maipu, Chile Lomas, Argentina Itupeva, Brazil Lima, Peru Suzano, Brazil 96Avient Corporation Metrics represent growth since 2010 $191 $680 2010 2021E $3 $70 2010 2021E $16 $400 2010 2021E (Sales in $ millions) Asia (ex. Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Reconciliation of EBITDA by Segment Year Ended December 31, 2019 Sales: Color, Additives and Inks $ 1,003.8 Specialty Engineered Materials 745.7 Distribution 1,192.2 Corporate and eliminations (79.0) Sales $ 2,862.7 Operating income: Color, Additives and Inks $ 147.4 Specialty Engineered Materials 83.7 Distribution 75.4 Corporate and eliminations (149.7) Operating income $ 156.8 Items below OI in Corporate: Other income, net $ 12.1 Depreciation & amortization: Color, Additives and Inks $ 42.7 Specialty Engineered Materials 29.5 Distribution 0.5 Corporate and eliminations 5.4 Depreciation & Amortization $ 78.1 EBITDA: Color, Additives and Inks $ 190.1 Specialty Engineered Materials 113.2 Distribution 75.9 Corporate and eliminations (132.2) EBITDA $ 247.0 EBITDA as a % of Sales: Color, Additives and Inks 18.9 % Specialty Engineered Materials 15.2 % Distribution 6.4 % 1 Reconciliation of Pro Forma EBITDA - Color, Additives and Inks Year Ended December 31, 2019 Sales: Color, Additives and Inks $ 1,003.8 Clariant Color pro forma adjustments(1) 1,118.6 Pro forma sales $ 2,122.4 Operating income: Color, Additives and Inks $ 147.4 Clariant Color pro forma adjustments(1) 72.9 Pro forma operating income $ 220.3 Depreciation & amortization: Color, Additives and Inks $ 42.7 Clariant Color pro forma adjustments(1) 60.3 Pro forma depreciation & amortization $ 103.0 EBITDA Color, Additives and Inks $ 190.1 Clariant Color pro forma adjustments(1) 133.2 Pro forma EBITDA $ 323.3 Pro forma EBITDA as a % of Sales 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 2009* 2010* 2011* 2012* 2013 2014 2015 2016** 2017 2018 2018*** 2019*** 2020 Net income from continuing operations attributable to Avient common shareholders $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 $ 144.6 $ 166.4 $ 173.5 $ 161.1 $ 87.7 $ 75.5 $ 152.7 Joint venture equity earnings, after tax (19.0) (14.7) (3.7) — — — — — — — — — — Special items, before tax(1) (48.7) 24.2 (48.1) 55.1 46.3 164.2 87.6 23.8 32.9 59.5 58.7 61.7 66.2 Special items, tax adjustments(1) (27.2) (96.7) (24.7) (18.9) (13.7) (73.7) (58.7) (15.9) (24.8) (25.3) (25.1) (5.9) (41.4) Adjusted net income from continuing operations attributable to Avient common shareholders $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 $ 173.5 $ 174.3 $ 181.6 $ 195.3 $ 121.3 $ 131.3 $ 177.5 Diluted shares 93.4 96.0 94.3 89.8 96.5 93.5 88.7 84.6 82.1 80.4 80.4 77.7 92.1 Adjusted EPS attributable to Avient common shareholders $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 $ 1.96 $ 2.06 $ 2.21 $ 2.43 $ 1.51 $ 1.69 $ 1.93 * Historical results have been updated to reflect subsequent changes to accounting principle and discontinued operations, excluding any changes as a result of discontinued operations from the sale of the Designed Structures and Solutions segment (DSS) and the Performance Products and Solutions segment (PP&S). ** Pro Forma for sale of DSS. *** Pro Forma for sale of PP&S. *** Pro Forma for full year of the Clariant Color acquisition 2 Nine Months Ended September 30, Year Ended December 31, Reconciliation to Pro Forma Adjusted EBITDA 2020 2021 2020 2019 Net income from continuing operations – GAAP $ 59.1 $ 201.7 $ 133.8 $ 75.7 Income tax expense 22.5 51.8 5.2 33.7 Interest expense 55.3 57.8 74.6 59.5 Depreciation and amortization from continuing operations 77.3 107.7 115.1 78.1 EBITDA $ 214.2 $ 419.0 $ 328.7 $ 247.0 Special items, before tax 62.0 36.5 66.2 61.7 Interest expense included in special items (10.1) — (10.1) — Depreciation and amortization included in special items (2.5) (0.1) (3.2) — Adjusted EBITDA $ 263.6 $ 455.4 $ 381.6 $ 308.7 Clariant MB pro forma adjustments(1) 75.1 — 75.1 133.2 Pro forma adjusted EBITDA $ 338.7 $ 455.4 $ 456.7 $ 441.9 (1) Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects to 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 (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 3 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 (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 Return on Invested Capital Year Ended December 31, 2006 Short term debt $ 5.2 Current portion of long term debt 22.5 Long term debt 567.7 Shareholder's equity 574.5 Invested capital $ 1,169.9 Cash 66.2 Current invested capital (net) $ 1,103.7 Adjusted operating income 87.5 Current tax rate 0.33 Return on invested capital 5.3 % Year Ended December 31, Reconciliation to Enterprise Value / Adjusted EBITDA 2011 2016 Net income from continuing operations – GAAP $ 172.6 $ 165.0 Income tax expense 26.1 57.3 Interest expense 33.7 59.8 Depreciation and amortization from continuing operations 57.5 105.9 EBITDA $ 289.9 $ 388.0 Special items, before tax (46.7) 35.3 SunBelt equity income (5.7) — Depreciation and amortization included in special items — (5.4) Adjusted EBITDA $ 237.5 $ 417.9 Enterprise value(2) $ 1,542.0 $ 3,763.0 Enterprise value / adjusted EBITDA 6.5 9.0 (2) - Enterprise value is defined as market capitalization plus net debt 4 AVNT 2021 Investor Day adfa.pdf AVNT 2021 Investor Day.pdf AVNT 2021 Investor Day.pdf AVNT 2021 Investor Day - Final.pdf 2021 Investor Day Recs v3 12.2 (002).pdf

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.