For the year, our stock price increased 32%, outpacing the S&P 500 and S&P Mid Cap Index. PolyOne Stock Performance The following is a graph that compares the cumulative total shareholder returns for PolyOne’s common shares, the S&P 500 index and the S&P Mid Cap Chemicals index, with dividends assumed to be reinvested when received. The S&P Mid Cap Chemicals index includes a broad range of chemical manufacturers.

Avient corporation first quarter 2023 results AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) F E B R UA RY 2 0 2 4 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Continue fostering our Great Place to Work® culture Strategic Objectives Long Term Growth Rates Growth Drivers $340 $455 $790 $1,135 $51 $84 $212 $645 $108 $113 $231 $230 $265 $358 $726 $725 8-12% 8-10% 8-10% 5% Sustainable Solutions Composites Healthcare Asia/Emerging Regions Profitable Growth Great Place to Work 5.4% 10.9% 16.0% 2006 2014 2023 EBITDA Margins $0.14 $1.93 $2.36 2006 2014 2023 TOP-TIER SUSTAINABILITY PERFORMANCE AND RECOGNITION Industry Sustainability Standards ESG Ratings Performance 1 4 87th 94th percentile 5 Avient CDP Score: A- FE BRUARY 14 , 2024 W E BCAS T P RE S E N TAT I O N DR. ASHISH KHANDPUR PRESIDENT & CEO 7 8 PORTFOLIO TRANSFORMATION 8 46% 66% 87% 100% 0% 20% 40% 60% 80% 100% 2005 2010 2015 2020 2023 % o f A dj us te d EB IT D A Commodity JVs Distribution Performance Products & Solutions Specialty Businesses Adjusted EBITDA from Specialty Applications SUSTAINABILITY AS A GROWTH DRIVER 9 LONG-TERM REVENUE GROWTH DRIVERS Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other 60%+ Key Growth Drivers Total Company Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Composites 8–10% Healthcare 8–10% Asia / LATAM 5% Other 0–2% Avient 6% END MARKET OBSERVATIONS (% OF COMPANY SALES) ENERGY DEFENSE TELECOMMUNICATIONS HEALTHCARE 10 TRANSPORTATION INDUSTRIAL BUILDING & CONSTRUCTION 9% CONSUMER PACKAGING 23% 11 REGIONAL OBSERVATIONS (% OF COMPANY SALES) 11 Q 4 2023 RE S U LT S Q4 2023 PERFORMANCE VS.

Use of Non-GAAP Measures Page 3 PolyOne Commodity to Specialty Transformation Page 4 • Continue specialty transformation • Targeting $2.50 Adjusted EPS by 2015, nearly double 2013 EPS • Drive double digit operating income and adjusted EPS growth • 17 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 • 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 • Volume driven, commodity producer • Heavily tied to cyclical end markets • Performance largely dependent on non- controlling joint ventures 2000-2005 2006 - 2009 2010 – 2013 2014 and beyond -150.00% -50.00% 50.00% 150.00% 250.00% 350.00% PolyOne S&P 500 Russell 2000 Dow Jones Chemical All time high of $38.38 March 7th, 2014 • 17 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 5 Appliance 4% Building & Construction 13% Wire & Cable 9% Electrical & Electronics 5% Consumer 10%Packaging 16% Industrial 12% HealthCare 11% Transportation 18% Misc. 2% United States 66% Europe 14% Canada 7% Asia 6% Latin America 7% PP&S Specialty 53% Distribution 27% 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 6 PolyOne At A Glance Old PolyOne Transformation *Operating Income excludes corporate charges and special items 2% 34% 43% 62% 65- 75% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2013 2015 % o f O pe ra tin g In co m e* JV's Performance Products & Solutions Distribution Specialty Specialty OI $5M $46M $87M $195M Target Mix Shift Highlights Specialty Transformation 2015 Target Page 7 2006 2013 2015 “Where we were” “Where we are” Target 1) Operating Income % Specialty: Global Color, Additives & Inks 1.7% 12.2% 12 – 16% Global Specialty Engineered Materials 1.1% 9.3% 12 – 16% Designed Structures & Solutions -- 5.6% 8 – 10% Performance Products & Solutions 5.4% 7.2% 9 – 12% Distribution 2.6% 5.9% 6 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 62% 65 – 75% 3) ROIC* (after-tax) 5.0% 9.1% 15% 4) Adjusted EPS Growth N/A 31% Double Digit Expansion Proof of Performance & 2015 Goals *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period Page 8 Bridge To $2.50 Adjusted EPS By 2015 2015 EPS: $2.50 2013 EPS: $1.31 Mid single digit revenue CAGR Page 9 Mergers & Acquisitions Spartech accretion Incremental share buybacks Ongoing LSS Programs (50-100 bps/yr) Accelerated Innovation & Mix Improvement 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 10 14.3% 30.7% 2006 2013 Specialty Platform Gross Margin % 19.5% 43.0% 2006 2013 Healthcare Consumer Packaging and Additive Technology Transportation Page 11 Unique and Innovative Solutions that Help Customers Win 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 Net Debt / EBITDA* = 1.8x $48 $317 $600 $0 $100 $200 $300 $400 $500 $600 $700 $800 2015 2020 2023 Significant Debt Maturities As of 2013年12月31日 ($ millions) Page 12 Coupon Rates: 7.500% 7.375% 5.250% Debt Maturities & Pension Funding – 12/31/13 *TTM 12/31/2013 ** includes US-qualified plans only 60% 100% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2008 2013 Pension Funding** As of 2013年12月31日 Free Cash Flow and Strong Balance Sheet Fund Investment •Targets that expand our: • Specialty offerings •End market presence •Geographic footprint •Operating Margin • Synergy opportunities •Adjacent material solutions •Expanding our sales, marketing, and technical capabilities • Investing in operational and LSS initiatives (including synergy capture) •Manufacturing alignment Organic Growth Share Repurchases Dividends Acquisitions Page 13 $0.16 $0.20 $0.24 $0.32 $0.00 $0.10 $0.20 $0.30 $0.40 2011 2012 2013 2014 Annual Dividend • Repurchased ~5 million shares in 2013 • 15 million shares are available for repurchase under the current authorization The New PolyOne: A Specialty Growth Company 2015 Target: $2.50 Adjusted EPS Why Invest In PolyOne? Reconciliation to Condensed Consolidated Balance Sheets 2013 Short-term debt and current portion of long-term debt $ 12.7 Long-term debt 976.2 Less cash and cash equivalents (365.2) Net debt $ 623.7 Adjusted EBITDA 2013 Income before income taxes $ 151.0 Interest expense, net 63.5 Depreciation and amortization 108.8 Special items in EBITDA 31.7 Adjusted EBITDA $ 355.0 2 Platform sales and operating income (OI) 2006Y* 2013Y Global Specialty Engineered Materials sales $ 345.3 $ 615.5 Global Color, Additives and Inks sales 531.8 852.3 Designed Structures and Solutions sales - 597.4 Specialty Platform sales 877.1 2,065.2 Performance Products and Solutions sales 1,166.2 773.2 PolyOne Distribution sales 732.8 1,075.2 Corporate and eliminations (153.7) (142.4) Total sales $ 2,622.4 $ 3,771.2 Global Specialty Engineered Materials OI $ 3.9 $ 57.2 Global Color, Additives and Inks OI 8.9 104.0 Designed Structures & Solutions OI - 33.4 Specialty Platform OI 12.8 194.6 Performance Products and Solutions OI 64.2 56.0 PolyOne Distribution OI 19.2 63.3 Sunbelt Joint Venture OI 102.9 - Corporate and eliminations (4.6) (52.4) Special items in OI 39.1 (30.0) Operating income GAAP 233.6 231.5 Sunbelt equity income (107.0) - Special items in OI (39.1) 30.0 Adjusted operating income $ 87.5 $ 261.5 Global Specialty Engineered Materials - OI % of sales 1.1% 9.3% Global Color, Additives and Inks - OI % of sales 1.7% 12.2% Designed Structures & Solutions - OI % of sales - 5.6% Specialty platform OI - % of sales 1.5% 9.4% PP&S operating OI - % of sales 5.5% 7.2% Distribution OI - % of sales 2.6% 5.9% PolyOne OI adjusted - % of sales 3.3% 6.9% * Historical results include the Resin and Specialty Coatings businesses within the Performance Products and Solutions segment.

Microsoft PowerPoint - AVNT Q4 2023 Earnings Presentation v7 AVIENT CORPORATION F O U R T H Q U A R T E R 2 0 2 3 R E S U L T S A N D 2 0 2 4 F I N A N C I A L G U I D A N C E (NYSE: AVNT) F E B R U A RY 1 4 , 2 0 2 4 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Additionally, Adjusted EPS excludes the impact of special items and amortization expense associated with intangible assets. 2 O P E N I N G R E M A R K S DR. ASHISH KHANDPUR PRESIDENT & CEO 4 5 PORTFOLIO TRANSFORMATION 5 46% 66% 87% 100% 0% 20% 40% 60% 80% 100% 2005 2010 2015 2020 2023 % o f A dj us te d EB IT D A Commodity JVs Distribution Performance Products & Solutions Specialty Businesses Adjusted EBITDA from Specialty Applications SUSTAINABILITY AS A GROWTH DRIVER 7 LONG-TERM REVENUE GROWTH DRIVERS Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other 60%+ Key Growth Drivers Total Company Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Composites 8–10% Healthcare 8–10% Asia / LATAM 5% Other 0–2% Avient 6% END MARKET OBSERVATIONS (% OF COMPANY SALES) ENERGY DEFENSE TELECOMMUNICATIONS HEALTHCARE 8 TRANSPORTATION INDUSTRIAL BUILDING & CONSTRUCTION 9% CONSUMER 19% PACKAGING 23% 9 REGIONAL OBSERVATIONS (% OF COMPANY SALES) 9 41% 36% Q 4 2 0 2 3 R E S U LT S Q4 2023 PERFORMANCE VS.

Microsoft PowerPoint - AVNT M8 Investor Presentation AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) AU G U S T 2 0 2 4 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. For the same reasons, Avient is unable to address the probable significance of the unavailable information. 3 AVIENT OVERVIEW 2023 Financial ResultsCompany Overview Revenue By: 9,300 Employees 102 Manufacturing Sites 20,000+ Customers  Innovating materials and processing solutions to solve our customers’ challenges while enabling a sustainable world  Broad portfolio of technologies with market leading positions and flexibility to anticipate and meet customer needs  Focus is on organic revenue growth and margin expansion, following our successful portfolio transformation $3.14B Revenue $2.36 Adjusted EPS $502M Adjusted EBITDA 16.0% Adjusted EBITDA Margins $186M Adjusted Free Cash Flow U.S. & Canada 64% Specialty Engineered Materials Color Additives and Inks 41% 23% 19% 10% 5% 4% Building & Energy Telecom Geography Segment Industry 2024 Financial Guidance $515 to $540 million Adjusted EBITDA $2.55 to $2.70 Adjusted EPS 4 Industry Sustainability Standards ESG Ratings Performance 1 4 87th 94th percentile Avient CDP Score: A- SUSTAINABILITY PERFORMANCE AND RECOGNITION AU G U S T 6 , 20 24 W EB CAS T P RE SE N TATI O N 6 Q2 2024 HIGHLIGHTS • 5% organic sales growth supported by broad-based growth across all regions in both CAI and SEM segments • Growth stemmed from gaining share, winning new product specifications and restocking in certain end markets • Cost control and operational discipline expanded EBITDA margins by 100 bps • EPS exceeded guidance by $0.05 and increased 21% vs the prior year Adj. EPS +21% $143 million +9% $143 million +9% Net Sales $850 million +3% (+5% ex FX) Net Sales $850 million +3% (+5% ex FX) Margin 16.9% +100 bps Margin 16.9% +100 bps Q 2 2024 R ES U LT S Q2 2024 PERFORMANCE VS.

f co (.) t_ f m Appendix awarded to Avient Protective Materials Urmonderbaan 22 6167 RD Geleen The Netherlands This certificate arso concerns berow mentioned organization(s) and site(s).

STRUCTURE MATERIAL TECHNIQUE FUNCTION S (Spunbond) outer layer PP Nonwoven Spunbond Waterproof, prevents droplets from sticking M (Meltblown) middle layer PP Nonwoven Meltblown Filtration of microbes, particles and droplets in the air S (Spunbond) outer layer PP Nonwoven Spunbond Water absorption, absorbs water vapor from breath Copyright © 2023, Avient Corporation.

Polyone de Mexico Manufacturing - TS 85585 Certificate of Registration QUALITY MANAGEMENT SYSTEM - IATF 16949:2016 This is to certify that: Polyone de Mexico Manufacturing S. de R.L. de C.V. CertificateNumber=TS+85585&ReIssueDate=11%2f07%2f2018&Template=inc Polyone de Mexico Manufacturing S. de R.L. de C.V.

Durée de la personne morale Jusqu'au 01/09/2104 Date de clôture de l'exercice social 31 décembre GESTION, DIRECTION, ADMINISTRATION, CONTROLE, ASSOCIES OU MEMBRES Président Nom, prénoms MERKLEIN Robert Date et lieu de naissance Le 03/05/1964 à Kelkheim (Allemagne) Domicile personnel Rheinfelden Schiffackerweg 2 4310 Suisse (Suisse) Directeur général Nom, prénoms VETTER Alexander Helmut Date et lieu de naissance Le 04/07/1968 à Augsburg (Allemagne) Domicile personnel Beinwilerstrasse 20A 4083 Bale (Suisse) Ayant pouvoir d'engager seul la société Directeur général Nom, prénoms TAMURA Mauricio Date et lieu de naissance Le 27/01/1971 à Sao Paulo (Brésil) Domicile personnel Birsfelden/BL Liestalerstrasse 1 4127 Suisse (Suisse) Ayant pouvoir d'engager seul la société Commissaire aux comptes titulaire Dénomination PRICEWATERHOUSECOOPERS AUDIT Forme juridique Société par actions simplifiée Adresse 63 Rue de Villiers 92200 Neuilly-sur-Seine Immatriculation au RCS, numéro 672 006 483 RCS Nanterre RENSEIGNEMENTS RELATIFS A L'ACTIVITE ET A L'ETABLISSEMENT PRINCIPAL Adresse de l'établissement 1995 Route De la Vallée du Giffre 74490 Saint-Jeoire Activité(s) exercée(s) Recherche - développement - achat - fabrication - transformation - vente de toutes matières premières - matériels à usage industriel et particulièrement Greffe du Tribunal de Commerce d'Annecy 19 Avenue du Parmelan BP 70259 74007 ANNECY Cedex N° de gestion 2008B80041 R.C.S.

Processing Guidelines Base Resin PA6 Barrel Temperatures °F °C Rear Zone 440–470 227–243 Center Zone 450–480 232–249 Front Zone 460–490 238–254 Nozzle 470–500 243–260 Melt Temperature 470–500 243–260 Mold Temperature 120–180 49–82 Pack and Hold Pressure 50–75% of Injection Pressure Injection Velocity 0.5 in/s–3 in/s 13 mm/s–76 mm/s Back Pressure 50–100 psi 3.4–6.9 Bar Screw Speed 30–70 rpm Cushion 0.25 in 6.35 mm Drying Parameters 2–4 Hours @ 180°F 2–4 Hours @ 82°C Moisture % Allowable 0.08–0.18%* Screw Type General Purpose Screw Screw Compression Ratio 2.0:1– 2.5:1 Screw L/D 20:1 Non-return Check Valve Free Flow Check Ring Nozzle Type Reverse Taper Clamp Pressure 2–3 Tons/in² Barrel Capacity 30-80% of barrel should be used * Avient suggests measuring moisture using a Karl Fischer method or Vapor Pro® moisture analyzer that titrates only for moisture.