Avient will provide additional details on its 2024 first quarter and 2024 outlook during its webcast scheduled for 8:00 a.m. 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. In addition, operating income before the effect of special items is a component of Avient's annual incentive plans and is used in debt covenant computations.

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In addition, operating income before special items and adjusted EPS are components of various PolyOne annual and long-term employee incentive plans Use of Non-GAAP Measures Page 3 PolyOne Commodity to Specialty Transformation • Volume driven, commodity producer • Heavily tied to cyclical end markets • Performance largely dependent on non- controlling joint ventures 2000-2005 2006 - 2009 2010 – 2014 2015 and beyond • Steve Newlin appointed, Chairman, President and CEO • New leadership team appointed • Implementation of four pillar strategy • Focus on value based selling, investment in commercial resources and innovation to drive transformation • 18 consecutive quarters of double- digit adjusted EPS growth • Shift to faster growing, high margin, less cyclical end markets • Key acquisitions propel current and future growth, as well as margin expansion • Established aggressive 2015 targets • Continue specialty transformation • Targeting $2.50 Adjusted EPS by 2015, nearly double 2013 EPS • Drive double digit operating income and adjusted EPS growth Confirmation of Our Strategy The World’s Premier Provider of Specialized Polymer Materials, Services and Solutions Specialization Globalization Operational Excellence Commercial Excellence -150.00% -50.00% 50.00% 150.00% 250.00% 350.00% 450.00% PolyOne S&P 500 Russell 2000 Dow Jones Chemical All time high of $39.28 April 4th, 2014 • 18 consecutive quarters of double digit EPS growth • 49% CAGR adjusted EPS expansion 2006-2013 • 2013 stock price increased 73% versus 30% growth in the S&P • More than seven fold increase in market cap: $0.5b $3.6b Strategy and Execution Drive Results Page 6 Appliance 4% Building & Construction 13% Wire & Cable 9% Electrical & Electronics 5% Consumer 10%Packaging 16% Industrial 12% HealthCare 11% Transportation 18% Misc. 2% 0.12 0.27 0.21 0.13 0.68 0.82 1.00 1.31 2.50 $0.00 $0.25 $0.50 $0.75 $1.00 $1.25 $1.50 $1.75 $2.00 $2.25 $2.50 2006 2007 2008 2009 2010 2011 2012 2013 2015 Target Ad ju st ed E ar ni ng s P er S ha re 2013 Revenues: $3.8 Billion End Markets 2013 Revenues: $3.8 Billion EPS Page 7 PolyOne At A Glance United States 67% Europe 14% Canada 7% Asia 6% Latin America 6% Specialty 54% PP&S 18% Distribution 28% Mix Shift Highlights Specialty Transformation Page 8 Old PolyOne Transformation *Operating Income excludes corporate charges and special items 2% 34% 43% 62% 64% 0% 20% 40% 80% 2005 2008 2010 2013 Q1 2014 2015 % o f O pe ra tin g In co m e* JV's Performance Products & Solutions Distribution Specialty 65-75% Specialty OI $5M $46M $87M $195M $60M Target 2015 Target Proof of Performance & 2015 Goals Page 9 2006 Q1 2014 2015 “Where we were” “Where we are” Target 1) Operating Income % Specialty: Global Color, Additives & Inks 1.7% 13.8% 12 – 16% Global Specialty Engineered Materials 1.1% 11.6% 12 – 16% Designed Structures & Solutions -- 6.5% 8 – 10% Performance Products & Solutions 5.5% 7.7% 9 – 12% Distribution 2.6% 6.1% 6 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 64% 65 – 75% 3) ROIC* (after-tax) 5.0% 9.4% 15% 4) Adjusted EPS Growth N/A 42% Double Digit Expansion *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period Bridge to $2.50 Adjusted EPS by 2015 2015 EPS: $2.50 2013 EPS: $1.31 Continued Gross Margin Expansion Mergers & Acquisitions Spartech Accretion Incremental share buybacks Ongoing LSS Programs (50-100 bps/yr) Accelerated Innovation & Mix Improvement Several Levers to Drive Growth Mid single digit revenue CAGR Innovation Drives Earnings Growth $20.3 $52.3 2006 2013 Research & Development Spending ($ millions) Specialty Platform Vitality Index Progression* *Percentage of Specialty Platform revenue from products introduced in last five years Page 11 14.3% 30.7% 2006 2013 Specialty Platform Gross Margin % 19.5% 42.0% 2006 Q1 2014 Healthcare Consumer Packaging and Additive Technology Transportation Page 12 Unique and Innovative Solutions https://www.dropbox.com/sh/dwe4t8aacvhb8ui/uD3p_bdglP/Presentation revise pics/GLS Beverage can closure XO 2.jpg https://www.dropbox.com/sh/dwe4t8aacvhb8ui/-YgkycKypw/Anti-Counterfeiting release & images/GN1979.JPG 60% 100% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2008 2014 Pension Funding** As of March 31, 2014 Debt Maturities & Pension Funding – 3/31/14 Net Debt / EBITDA* = 1.9x $48 $317 $600 $0 $100 $200 $300 $400 $500 $600 $700 $800 2015 2020 2023 Debt Maturities As of March 31, 2014 ($ millions) Coupon Rates: 7.500% 7.375% 5.250% ** includes US-qualified pension plans only *TTM 3/31/2014 Free Cash Flow and Strong Balance Sheet Fund Investment / Shareholder Return $0.16 $0.20 $0.24 $0.32 $0.10 $0.20 $0.30 $0.40 2011 2012 2013 2014 Annual Dividend  Expanding our sales, marketing, and technical capabilities  Investing in operational and initiatives that drive profitability growth Manufacturing realignment  Targets that expand our: • Specialty offerings • End market presence • Geographic footprint • Operating Margin  Synergy opportunities  Adjacent material solutions  Repurchased 1.4 million shares in Q1 2014  Repurchased 6.4 million shares since April 2013  13.6 million shares are available for repurchase under the current authorization Organic Growth Acquisitions Share Repurchases Dividends The New PolyOne: A Specialty Growth Company Why Invest In PolyOne? Platform operating income mix percentage 2005Y* 2008Y* 2010Y* 2013Y 2014 Q1 Global Specialty Engineered Materials $ 0.4 $ 17.6 $ 49.7 $ 57.2 $ 18.3 Global Color, Additives and Inks 4.3 28.1 37.7 104.0 30.4 Designed Structures and Solutions - - - 33.4 11.2 Specialty Platform $ 4.7 $ 45.7 $ 87.4 $ 194.6 $ 59.9 Performance Products and Solutions 75.7 31.3 54.0 56.0 16.0 Distribution 19.5 28.1 42.0 63.3 17.2 SunBelt Joint venture 91.9 28.6 18.9 - - Corporate (51.5) (425.1) (27.7) (82.4) (36.7) Operating income (loss) GAAP $ 140.3 $ (291.4) $ 174.6 $ 231.5 $ 56.4 Less: Corporate operating expense 51.5 425.1 27.7 82.4 36.7 Operating income excluding Corporate $ 191.8 $ 133.7 $ 202.3 $ 313.9 $ 93.1 Specialty platform operating mix percentage 2% 34% 43% 62% 64% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment.

Our expanding portfolio of offerings includes colorants, advanced composites, functional additives, engineered materials, and Dyneema®, the world’s strongest fiber™. In doing so, both of our segments, Color, Additives & Inks and Specialty Engineered Materials, contributed to our strong performance with increases in revenue while expanding margins. Senior Vice President, Global Operations and Process Improvement Woon Keat Moh Senior Vice President, and President of Color, Additives and Inks Christopher L.

They are great additions to our growing specialty portfolio, which remains unmatched in the industry," said

the company will provide additional details on its second quarter performance as well as updated expectations for the balance of the year.

In addition, as a business leader at 3M he has demonstrated great success in using that expertise to drive sales and profit growth.

The Clariant Masterbatch business includes 46 manufacturing operations and technology centers in 29 countries and approximately 3,500 employees, who will join Avient's Color, Additives and Inks segment.

Performance Additives

Fiber-Line is an innovative and unique addition to our portfolio of fiber and composite solutions with tremendous upside for growth," said