PolyOne Corporation Page 4 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 • 20 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 • Goal of $2.50 adjusted EPS by 2015, three times the EPS generated in 2011 of $0.82 • Drive double digit operating income and adjusted EPS growth PolyOne Corporation Page 5 Building & Construction 13% Industrial 12% Transportation 18% Wire & Cable 9% Packaging 16% Consumer 10% HealthCare 11% Appliance 6% Electronics & Electrical 5% 2013 Revenues: $3.8 Billion End Markets 2013 Revenues: $3.8 Billion PolyOne At A Glance United States 67% Europe 14% Canada 7% Asia 6% Latin America 6% Specialty 54% PP&S 18% Distribution 28% $13 $31 $46 $46 $92 $96 $122 $195 $0 $50 $100 $150 $200 2006 2007 2008 2009 2010 2011 2012 2013 Specialty Operating Income PolyOne Corporation Page 6 Old PolyOne *Operating Income excludes corporate charges and special items 2% 34% 43% 62% 65% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2013 2014 YTD 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 $191M Target Mix Shift Highlights Specialty Transformation Transformation 2015 Target PolyOne Corporation Page 7 Confirmation of Our Strategy The World’s Premier Provider of Specialized Polymer Materials, Services and Solutions Specialization Globalization Operational Excellence Commercial Excellence PolyOne Corporation Page 8 Strategy and Execution Drive Results $0.12 $0.27 $0.21 $0.13 $0.68 $0.82 $1.00 $1.31 '06 '07 '08 '09 '10 '11 '12 '13 ‘06-‘13 EPS CAGR = 41% EPS Share Price vs. S&P 500 -150% -50% 50% 150% 250% 350% 450% 550% POL S&P 500 All time high of $43.34 July 1st, 2014 PolyOne Corporation Page 9 2006 2014 YTD 2015 “Where we were” “Where we are” Target 1) Operating Income % Specialty: Global Color, Additives & Inks 1.7% 14.9% 12 – 16% Global Specialty Engineered Materials 1.1% 12.1% 12 – 16% Designed Structures & Solutions -- 7.6% 8 – 10% Performance Products & Solutions 5.5% 8.1% 9 – 12% Distribution 2.6% 6.2% 6 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 65% 65 – 75% 3) ROIC* 5.0% 10.6% 15% 4) Adjusted EPS Growth N/A 37% 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 PolyOne Corporation Page 10 32% Adjusted EPS CAGR from 2011 2015 EPS: $2.50 2011 EPS: $0.82 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 Growth PolyOne Corporation Page 11 Innovation Drives Earnings Growth *Percentage of Specialty Platform revenue from products introduced in last five years $20 $53 2006 2013 Research & Development Spending ($ millions) Specialty Platform Vitality Index Progression* 14% 31% 2006 2013 Specialty Platform Gross Margin % 20% 43% 2006 2013 Specialty Vitality Index Target ≥ 35% Vitality Products + 700 to 1000 bps PolyOne Corporation Page 12 Prototype Frame Opportunity Scale-up & Test Market Build Business Case Commercial Launch Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 4 11 5 10 6 9 3 4 2 15 9 1 10 4 Breakthrough Platform Derivative A Rich Pipeline of Opportunity Number of Projects 25 14 19 17 18 93 Addressable Market ($ millions) TBD TBD $800 $450 $450 $1,700 PolyOne Corporation Page 13 Megatrends Aligned with Key End Markets Decreasing Dependence on Fossil Fuels Protecting the Environment Improving Health and Wellness Megatrend End Markets Globalizing and Localizing Health & Wellness Transportation Packaging Consumer PolyOne Corporation Page 14 60% 100% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2008 2014 Pension Funding** As of September 30, 2014 Debt Maturities & Pension Funding – 9/30/14 Net Debt / EBITDA* = 1.7x $48 $317 $600 $0 $100 $200 $300 $400 $500 $600 $700 $800 2015 2020 2023 Debt Maturities As of September 30, 2014 ($ millions) Coupon Rates: 7.500% 7.375% 5.250% ** includes US-qualified pension plans only *TTM 9/30/2014 PolyOne Corporation Page 15 Free Cash Flow and Strong Balance Sheet Fund Investment / Shareholder Return Expanding our sales, marketing, and technical capabilities Targets that expand our: • Specialty offerings • End market presence • Geographic footprint • Operating Margin Synergy opportunities Adjacent material solutions Repurchased 1.5 million shares in Q3 2014 Repurchased 9.7 million shares since early 2013  10.3 million shares are available for repurchase under the current authorization Organic Growth Acquisitions Share Repurchases Dividends  Investing in operational and LSS initiatives (including synergy capture) Manufacturing alignment $0.16 $0.20 $0.24 $0.32 $0.40 $0.10 $0.20 $0.30 $0.40 $0.50 2011 2012 2013 2014 2015 Annual Dividend PolyOne Corporation Page 16 PolyOne Core Values Innovation Collaboration Excellence PolyOne Corporation Page 17 The New PolyOne: A Specialty Growth Company Why Invest In PolyOne?

% Pigment Specific Gravity Color Index Lightfastness WHITE 10PEP03 Titanium Dioxide, Rutile 60 2.06 PW-6 I/O YELLOW 12PEP01 Diarylide AAOT GS 20 1.24 PY-14 I 12PEP03 Diarylide HR RS 25 1.23 PY-83 I/O (Mass) 13PEP02 Isoindolinone RS 25 1.31 PY-110 I/O 13PEP03 Benzimidazolone GS 25 1.25 PY-151 I/O (Mass) 81PEP01 Iron Oxide 60 2.07 PY-42 I/O ORANGE 15PEP03 Benzimidazolone RS 25 1.27 PO-36 I/O RED 23PEP04 Quinacridone BS 25 1.24 PV-19 I/O 23PEP06 Specialty Naphthol BS 25 1.23 PR-170 I/O (Mass) C 25PEP01 Red 2B, Ca Salt BS 17 1.26 PR-48:2 I/O (Mass) 28PEP01 Red 2B, Ba Salt YS 25 1.32 PR48:1 I/O (Mass) 82PEP01 Iron Oxide, Light YS 27 1.5 PR-101 I/O 82PEP02 Iron Oxide, Light BS 60 2.2 PR-101 I/O 82PEP04 Iron Oxide, Light VYS 60 2.2 PR-101 I/O 82PEP05 Iron Oxide, Dark VBS 60 2.21 PR-101 I/O BLUE 40PEP01 Phthalocyanine GS 25 1.27 PB-15:3 I/O 40PEP05 Phthalocyanine RS 25 1.27 PB-15 I/O 42PEP02 Ultramarine 35 1.44 PB-29 I/O 49PEP01 Cobalt 31 1.54 PB-28 I/O GREEN 50PEP01 Phthalocyanine BS 16 1.28 PG-7 I/O 50PEP03 Phthalocyanine YS 16 1.28 PG-7 I/O 59PEP02 Chromium Oxide 70 2.6 PG-17 I/O VIOLET/MAGENTA 24PEP03 Quinacridone Violet 20 1.24 PV-19 I/O 24PEP04 Ultramarine Violet 50 1.69 PV-15 I/O 24PEP05 Quinacridone Magenta 20 1.24 PR-122 I/O 24PEP06 Benzimidazolone 20 1.23 PV-32 I/O 24PEP07 Carbazole Violet 13 1.22 PV-23 I/O BROWN/TAN 83PEP01 Iron Oxide, Light 34 1.6 PBr-6 I/O 83PEP02 Iron Oxide, Dark 29 1.51 PBr-6 I/O BLACK 90PEP01 Furnace - High Jet 24 1.3 PBk-7 I/O 90PEP04 Furnace - Medium 17 1.27 PBk-7 I/O 90PEP05 Iron Oxide 33 1.58 PBk-11 I/O POLYESTER URETHANE PASTE COLORANTS (PEP) Stan-Tone Code Pigment Type Approx. % Pigment Specific Gravity Color Index Lightfastness WHITE 10ET03 Titanium Dioxide, Rutile 56 1.74 PW-6 I/O YELLOW 12ET01 Diarylide AAOT GS 40 1.15 PY-14 I 12ET03 Diarylide HR RS 20 1.07 PY-83 I/O (Mass) 13ET02 Isoindolinone RS 20 1.11 PY-110 I/O 13ET03 Benzimidazolone GS 20 1.08 PY-151 I/O (Mass) 81ET01 Iron Oxide 60 1.84 PY-42 I/O ORANGE 15ET03 Benzimidazolone RS 25 1.11 PO-36 I/O RED 20ET01 Red Lake C YS 30 1.16 PR-53 I 22ET01 Lithol Rubine BS 30 1.17 PR-57:1 I 23ET04 Quinacridone BS 15 1.05 PV-19 I/O 23ET06 Specialty Naphthol BS 30 1.09 PR-170 I/O (Mass) C 25ET01 Red 2B, Ca Salt BS 29 1.15 PR-48:2 I/O (Mass) 28ET01 Red 2B, Ba Salt YS 30 1.18 PR-48:1 I/O (Mass) 82ET01 Iron Oxide, Light BS 60 1.94 PR-101 I/O 82ET02 Iron Oxide, Dark VBS 60 1.95 PR-101 I/O 82ET04 Iron Oxide, Light VYS 60 1.94 PR-101 I/O BLUE 40ET01 Phthalocyanine GS 25 1.11 PB-15:3 I/O 40ET05 Phthalocyanine RS 20 1.09 PB-15 I/O 42ET02 Ultramarine 55 1.46 PB-29 I/O 49ET01 Cobalt 65 2.02 PB-28 I/O GREEN 50ET01 Phthalocyanine BS 30 1.2 PG-7 I/O 50ET03 Phthalocyanine YS 25 1.16 PG-7 I/O 59ET01 Chromium Oxide 65 2.12 PG-17 I/O VIOLET/MAGENTA 24ET03 Quinacridone Violet 20 1.08 PV-19 I/O 24ET04 Ultramarine Violet 60 1.66 PV-15 I/O 24ET05 Quinacridone Magenta 20 1.08 PR-122 I/O 24ET06 Benzimidazolone 25 1.08 PV-32 I/O 24ET07 Carbazole Violet 13 1.05 PV-23 I/O BROWN/TAN 83ET01 Iron Oxide, Light 64 2.02 PBr-6 I/O 83ET02 Iron Oxide, Dark 60 1.9 PBr-6 I/O BLACK 90ET04 Furnace - Medium 22 1.12 PBk-7 I/O 90ET05 Iron Oxide 60 1.9 PBk-11 I/O POLYETHER URETHANE PASTE COLORANTS (ET) PEP/ET RS = Red Shade YS = Yellow Shade VYS = Very Yellow Shade BS = Blue Shade VBS = Very Blue Shade GS = Green Shade HR = Heat-Resistant LIGHTFASTNESS I = Indoor Only I/O = Indoor or Outdoor Mass = Outdoor Masstone Application Only C = Some Caution Advised www.avient.com Copyright © 2020, Avient Corporation.

Page 3 Strategy and Execution Drive Results 90% $22 $24 PolyOne Stock Price 50% 70% $18 $20 $22 S&P 500 (relative performance) 30% $12 $14 $16 S&P 500 (relative performance) ‐10% 10% $6 $8 $10 50% ‐30% $0 $2 $4 $ | ‐50%$0 2006 2007 2008 2009 2010 2011 2012 2013 Page 4 Four Pillar Strategy The World’s Premier Provider of SpecializedThe World s Premier Provider of Specialized Polymer Materials, Services & Solutions Page 5 Spartech – Compelling Strategic Rationale • Spartech expands PolyOne’s specialty portfolio with adjacent technologies in attractive end markets  Bolt on acquisition with opportunity for global expansion as only Bolt‐on acquisition with opportunity for global expansion, as only 6% of Spartech’s revenues are outside of North America • PolyOne has a proven management team with a track record of transformational success • Preliminary synergy estimated at $65 million run rate by end of 3year 3  Significant opportunity to expand profitability by leveraging PolyOne’s four pillar strategy • Substantial potential share price appreciation for all shareholders f f ll / $ Accretive to EPS in first full year post‐acquisition / $0.50 once synergies realized Page 6 Mix Shift Highlights Specialty Transformation Old PolyOne Transformation 100% 2015 Target 80% In co m e* 65 – 75%40% 60% f O pe ra tin g 34% 43% 45% 65 75% 20% % o f 2%0% 2005 2008 2010 2012 2015 Specialty OI $5M $46M $87M $114M Target *Operating Income excludes corporate charges and special items JV's PP&S Distribution Specialty Page 7 Proof of Performance 2007 2012 2015 “Where we were” “Where we are” “Where we Where we were Where we are expect to be" 1) Operating Income % Specialty 3.2% 9.1% 12 – 16% PP&S 6.1% 9.0% 9 – 12% Distribution 3.0% 6.4% 6 – 7.5% 2) Specialty Platform sss% of Operating Income 20% 45% 65 – 75% 3) ROIC* ( ft t ) 7% 11% 15%3) ROIC* (after‐tax) 7% 11% 15% 4) Adjusted EPS Growth** N/A 4 yr CAGR = 55% Double Digit Expansion *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period **4 yr EPS CAGR calculated using 2012 adjusted EPS vs 2008 adjusted EPS Page 8 Proof of Performance Spartech Opportunity Intermediate PolyOne Spartech Opportunity 2006 2012 Today Goal “Where we were” “Where we are” “Where Spartech is”* “Where we can go”were are Spartech is can go Specialty Operating Margin 1.5% 9.1% 2.2% 8.0% – 10.0% Margin Page 9 *Pro Forma results include Spartech corporate allocations for FY12 ended November 3, 2012 At a Glance PolyOne Europe 14% Canada 8% Asia 5% Latin America 3% Distribution 2012 Revenues: $4.2 Billion* 2012 Revenues: $4.2 Billion* United States 70% 14% 5% PP&S 20%Specialty 57% 23% 70% Appliance 5% Building & HealthCare Transportation 16% Textiles 2% 1.02 1.20 $1.20 $1.40 ha re End Markets* EPS Growth g Construction 14% Wire & Cable 8% Consumer 8% Packaging 17% Industrial 11% Misc. 6% 9% 0.27 0 21 0.79 $0.40 $0.60 $0.80 $1.00 Ad ju st ed E ar ni ng s P er S Electrical & Electronics 4% 0.12 0.21 0.13 $0.00 $0.20 2006 2007 2008 2009 2010 2011 2012 Page 10 * Pro Forma includes FY2012 results for Spartech (11/03/12 YE) and Glasforms At a Glance Specialty U it d 2012 Revenues: $2.4 Billion* Solutions United States 59% Europe 23% Asia Canada 4% Asia 9% Latin America 5% Appliance 4% Building & C t ti HealthCare 5% Transportation 16% Textiles 2% % o f S al es 12-16% End Markets* Expanding Profits Construction 11% Wire & Cable 7% Electrical & Electronics Packaging 23% Industrial 7% Misc. 15% 1.5% 3.2% 4.3% 5.3% 8.4% 9.1% O pe ra tin g In co m e % 8.0% Electronics 4% Consumer 6% Page 11 2006 2007 2008 2009 2010 2011 2012 2015 O Target* Pro Forma includes FY2012 results for Spartech (11/03/12 YE) and Glasforms At a Glance Designed Structures and Solutions United States 2012 Revenues: $0.85 Billion* Solutions 84% Europe 2% Canada 7% Latin America 7% Appliance 4% Building & Construction 11% Wire & Cable Sign & Advertising 3% Recreation & Leisure 2% Pool & Spa 1% Distribution & Thermoform 8% Textiles 2% Operating Income % of Sales 2012 Revenue by Industry Segment* Expanding Profits** Wire & Cable 7% Electrical & Electronics 4% Consumer 6% Packaging 23%Industrial 7% Transportation 16% 3% 2.2% 8 ‐ 10% 7% Misc. 1% HealthCare 5% 2012 2015 Target Page 12 *Pro Forma includes FY2012 results for Spartech (11/03/12 YE) **Pro Forma results include Spartech corporate allocations for FY12 Positioned for Earnings Growth 2015 Target Rev: $5B Adj. Platform operating income mix percentage 2005Y 2006Y 2007Y 2008Y 2009Y 2010Y 2011Y Global Specialty Engineered Materials $ 0.4 $ 3.9 $ 4.9 $ 17.6 $ 20.6 $ 49.7 $ 45.9 Global Color, Additives and Inks 4.3 8.9 25.7 28.1 25.2 37.7 43.4 Specialty Platform $ 4.7 $ 12.8 $ 30.6 $ 45.7 $ 45.8 $ 87.4 $ 89.3 Performance Products and Solutions 75.7 64.2 65.8 31.3 33.1 54.0 62.4 Distribution 19.5 19.2 22.1 28.1 24.8 42.0 56.0 SunBelt Joint Venture 91.9 102.9 34.8 28.6 25.5 18.9 5.0 Corporate (51.5) 34.5 (73.3) (425.1) 7.9 (27.7) 20.3 Operating income (loss) GAAP $ 140.3 $ 233.6 $ 80.0 $ (291.4) $ 137.1 $ 174.6 $ 233.0 Less: Corporate operating expense (income) 51.5 (34.5) 73.3 425.1 (7.9) 27.7 (20.3) Operating income excluding Corporate $ 191.8 $ 199.1 $ 153.3 $ 133.7 $ 129.2 $ 202.3 $ 212.7 Specialty platform operating mix percentage 2% 6% 20% 34% 35% 43% 42% Platform operating income mix percentage 2012Y Global Specialty Engineered Materials $ 47.0 Global Color, Additives and Inks 66.8 Specialty Platform $ 113.8 Performance Products and Solutions 74.9 Distribution 66.0 Corporate (87.6) Operating income GAAP $ 167.1 Less: Corporate operating expense 87.6 Operating income excluding Corporate $ 254.7 Specialty platform operating mix percentage 45% Platform sales and operating income (OI) 2006Y 2007Y 2008Y 2009Y 2010Y 2011Y Global Specialty Engineered Materials Sales $ 345.3 $ 384.4 $ 514.0 $ 402.9 $ 517.4 $ 575.1 Global Color, Additives and Inks Sales 531.8 560.5 554.3 459.8 527.4 544.6 Specialty Platform Sales $ 877.1 $ 944.9 $ 1,068.3 $ 862.7 $ 1,044.8 $ 1,119.7 Performance Products and Solutions Sales 1,166.2 1,086.8 1,001.4 667.7 776.3 865.4 PolyOne Distribution Sales 732.8 744.3 796.7 625.1 911.9 996.5 Corporate and Eliminations (153.7) (133.3) (127.7) (94.8) (111.1) (118.1) Total Sales $ 2,622.4 $ 2,642.7 $ 2,738.7 $ 2,060.7 $ 2,621.9 $ 2,863.5 Global Specialty Engineered Materials OI $ 3.9 $ 4.9 $ 17.6 $ 20.6 $ 49.7 $ 45.9 Global Color, Additives and Inks OI 8.9 25.7 28.1 25.2 37.7 43.4 Specialty Platform OI $ 12.8 $ 30.6 $ 45.7 $ 45.8 $ 87.4 $ 89.3 Performance Products and Solutions OI 64.2 65.8 31.3 33.1 54.0 62.4 PolyOne Distribution OI 19.2 22.1 28.1 24.8 42.0 56.0 Sunbelt Joint Venture OI 102.9 34.8 28.6 25.5 18.9 5.0 Corporate and eliminations (4.6) (25.5) (28.9) (40.8) (32.5) (26.4) Special items in OI 39.1 (47.8) (396.2) 48.7 4.8 46.7 Operating income (loss) GAAP $ 233.6 $ 80.0 $ (291.4) $ 137.1 $ 174.6 $ 233.0 Sunbelt equity income (107.0) (40.8) (32.5) (29.7) (23.1) (5.7) Special items in OI (39.1) 47.8 396.2 (48.7) (4.8) (46.7) Operating income adjusted $ 87.5 $ 87.0 $ 72.3 $ 58.7 $ 146.7 $ 180.6 Global Specialty Engineered Materials - OI % of sales 1.1% 1.3% 3.4% 5.1% 9.6% 8.0% Global Color, Additives and Inks - OI % of sales 1.7% 4.6% 5.1% 5.5% 7.1% 8.0% Specialty platform OI - % of sales 1.5% 3.2% 4.3% 5.3% 8.4% 8.0% PP&S operating OI - % of sales 5.5% 6.1% 3.1% 5.0% 7.0% 7.2% Distribution OI - % of sales 2.6% 3.0% 3.5% 4.0% 4.6% 5.6% PolyOne OI adjusted - % of sales 3.3% 3.3% 2.6% 2.8% 5.6% 6.3% Platform sales and operating income (OI) 2012Y 2012PF Global Specialty Engineered Materials Sales $ 543.6 $ 779.5 Global Color, Additives and Inks Sales 703.5 753.8 Designed Structures & Solutions 847.4 Specialty Platform Sales $ 1,247.1 $ 2,380.7 Performance Products and Solutions Sales 837.0 902.8 PolyOne Distribution Sales 1,030.3 1,030.3 Corporate and Eliminations (121.8) (121.8) Total Sales $ 2,992.6 $ 4,192.0 Global Specialty Engineered Materials OI $ 47.0 Global Color, Additives and Inks OI 66.8 Specialty Platform OI $ 113.8 Performance Products and Solutions OI 74.9 PolyOne Distribution OI 66.0 Corporate and eliminations (33.7) Special items in OI (53.9) Operating income - GAAP $ 167.1 Special items in OI 53.9 Operating income adjusted $ 221.0 Global Specialty Engineered Materials - OI % of sales 8.6% Global Color, Additives and Inks - OI % of sales 9.5% Specialty platform OI % of sales 9.1% PP&S operating OI % of sales 9.0% Distribution OI % of sales 6.4% PolyOne OI adjusted, % of sales 7.4% Adjusted EPS 2006Y 2007Y 2008Y 2009Y 2010Y 2011Y 2012Y Net Income attributable to PolyOne common shareholders $ 130.9 $ 40.9 $ (417.0) $ 106.7 $ 162.6 $ 172.6 $ 71.9 SunBelt equity earnings, after tax (68.5) (26.1) (20.8) (19.0) (14.7) (3.7) - Special items, after tax (21.2) 41.4 310.0 (31.0) 15.8 (30.5) 35.7 Tax adjustments (30.0) (30.7) 147.2 (44.9) (88.3) (42.3) 0.5 Adjusted net income $ 11.2 $ 25.5 $ 19.4 $ 11.8 $ 75.4 $ 96.1 $ 108.1 Diluted shares 92.8 93.1 92.7 93.4 96.0 94.3 89.8 Adjusted EPS $ 0.12 $ 0.27 $ 0.21 $ 0.13 $ 0.79 $ 1.02 $ 1.20 Average Debt Q4 2011 Q1 2012 Q2 2012 Q3 2012 Q4 2012 Average PolyOne Debt $ 707.0 $ 706.4 $ 705.8 $ 705.2 $ 706.9 $ 706.3 Average Equity Q4 2011 Q1 2012 Q2 2012 Q3 2012 Q4 2012 Average PolyOne shareholders’ equity $ 588.3 $ 611.3 $ 604.3 $ 629.3 $ 629.1 $ 612.5 Adjusted EBITDA 2012 PolyOne Income before income taxes $ 113.0 PolyOne Interest expense, net 50.8 PolyOne Depreciation and amortization 69.8 PolyOne Special items in EBITDA 55.1 PolyOne Adjusted EBITDA $ 288.7 Pro forma Spartech EBITDA * 56.3 Pro forma EBITDA * $ 345.0 * Amount excludes expected synergies.

EBITDA $130 million +6% (+7% ex FX) Adj. EBITDA $130 million +6% (+7% ex FX)Net Sales $815 million +8% (+8.5% ex FX) Net Sales $815 million +8% (+8.5% ex FX) Q 3 2024 R ES U LT S TOTAL COMPANY (Q3 2024 PERFORMANCE VS Q3 2023) $754 $815 Q3 23 Q3 24 $123 $130 Q3 23 Q3 24 Sales Adjusted EBITDA (in millions) $0.57 $0.65 Q3 23 Q3 24 (in millions) Adjusted EBITDA Adjusted EPS 8 + 8% (+8.5% excluding FX) + 6% (+7% excluding FX) + 14% (+16% excluding FX) Sales 9 Q3 2024 RESULTS – ORGANIC REVENUE GROWTH BY REGION VS PY 9 US & Canada Latin America EMEA Asia +9% +5% +11% +27% Avient ex. FX +8.5% FX -0.4% Total Avient +8.1% Note: Regional Sales Percentages exclude impact of foreign exchange COLOR, ADDITIVES & INKS SEGMENT (Q3 2024 PERFORMANCE VS Q3 2023) $487 $522 Q3 23 Q3 24 $89 $97 Q3 23 Q3 24 Sales Adjusted EBITDA (in millions) (in millions) Sales Adjusted EBITDA 10 + 7% (+8% excluding FX) + 9% (+11% excluding FX) 18.3% +40 bps *18.7% * * Adjusted EBITDA Margin % • Sales growth driven by winning new product specifications in consumer & packaging, strong underlying demand in healthcare and improving demand in building & construction • Favorable mix and raw material deflation contributed to EBITDA margin expansion SPECIALTY ENGINEERED MATERIALS SEGMENT (Q3 2024 PERFORMANCE VS Q3 2023) $268 $295 Q3 23 Q3 24 $51 $57 Q3 23 Q3 24 Sales Adjusted EBITDA (in millions) (in millions) Sales Adjusted EBITDA 11 • Sales growth driven by restocking in healthcare & consumer end markets and strong underlying demand for composite applications used in building & construction, energy and defense end markets • Favorable mix contributed to EBITDA margin expansion + 10% (+10% excluding FX) + 12% (+13% excluding FX) 19.0% +40 bps *19.4% * * Adjusted EBITDA Margin % 2024 G U IDA N CE FY 2024 GUIDANCE Previous (Aug 6) Current Adjusted EPS $2.55 to $2.70 $2.63 to $2.67 Adjusted EBITDA $515 to $540 million $525 to $530 million Interest Expense $105 million $104 million Adjusted Effective Tax Rate 23% to 25% 23% to 25% Capital Expenditures & Investment in S/4 Hana ~$140 million ~$140 million 13 14 • Investor Day to be held December 4, 2024 at the NYSE, beginning at 10AM • The focus will be to do a deep dive on the Company’s strategy • Registration available at www.avient.com/investors 2024 AVIENT INVESTOR DAY AP P EN D IX 17 Performance Additives 15% Pigments 13% TiO2 9% Dyestuffs 2% Polyethylene 10%Nylon 5% Polypropylene 4% Styrenic Block Copolymer 4% Other Raw Materials 38% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials RAW MATERIAL BASKET SEGMENT DATA U.S. & Canada 41% EMEA 36% Asia 18% Latin America 5% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 19% Packaging 23%Industrial 16% Building and Construction 9% Telecommunications 4% Energy 5% Defense 7% END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) Transportation 10% Healthcare 7% 19 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2023 REVENUE | $2 .0 B ILL ION US & Canada 34% EMEA 37% Asia 21% Latin America 8% END MARKET REGION 20 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 9% Building & Construction 10% Telecommunications 1% Energy 2% COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 B ILL ION US & Canada 52% EMEA 35% Asia 13% 21 Packaging 5% Consumer 16% Healthcare 6%Industrial 16% Transportation 12% Telecommunications 9% Energy 10% Defense 18% Building & Construction 8% END MARKET REGION SPECIALTY ENGINEERED MATERIALS Packaging 32% Consumer 26% Healthcare 9% Industrial 13% Building & Construction 6% Telecommunications 2% Energy 2% Defense 1% Asia (18% of sales) Transportation 9% 2023 AVIENT REGIONAL SALES Packaging 25% Consumer 13% Healthcare 5% Industrial 18% Building & Construction 9% Energy 5% Defense 8% EMEA (36% of sales)Transportation 13% Packaging 13% Consumer 22% Healthcare 10% Industrial 16% Building & Construction 12% Energy 6% Defense 8% US & Canada (41% of sales) Transportation 9% Packaging 59% Consumer 22% Healthcare 2% Industrial 8% Building & Construction 4% LATAM (5% of sales) Transportation 5% Telecommunications 4% Telecommunications 4% 22 BY END MARKET Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) 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.

Q1 2025 Earnings webcast Avient Corporation AVNT MAY 6, 2025 Q1 2025 results 2025 full-year financial guidance Copyright © . Offsetting any inflationary headwinds with our time-tested rigor in raw material sourcing, substitution and pricing actions 6. All Rights Reserved 2025 16 Avient 2024 regional sales, by end market US & CANADA 41% of sales EMEA 35% of sales ASIA 18% of sales LATIN AMERICA 6% of sales 13% 22% 14% 9% 13% 10% 9% 6% 4% Packaging TelecomEnergyDefenseHealthcareBuilding & construction TransportationIndustrialConsumer 26% 13% 16% 13% 10% 5% 10% 5% 2% 31% 26% 14% 10% 5% 10% 1%1% 2% 61% 20% 7% 6% 4% 2% Copyright © .

Q1 2025 Earnings webcast Avient Corporation AVNT MAY 6, 2025 Q1 2025 results 2025 full-year financial guidance Copyright © . Offsetting any inflationary headwinds with our time-tested rigor in raw material sourcing, substitution and pricing actions 6. All Rights Reserved 2025 16 Avient 2024 regional sales, by end market US & CANADA 41% of sales EMEA 35% of sales ASIA 18% of sales LATIN AMERICA 6% of sales 13% 22% 14% 9% 13% 10% 9% 6% 4% Packaging TelecomEnergyDefenseHealthcareBuilding & construction TransportationIndustrialConsumer 26% 13% 16% 13% 10% 5% 10% 5% 2% 31% 26% 14% 10% 5% 10% 1%1% 2% 61% 20% 7% 6% 4% 2% Copyright © .

TÍTULO DO ESTABELECIMENTO (NOME DE FANTASIA) ******** PORTE DEMAIS CÓDIGO E DESCRIÇÃO DA ATIVIDADE ECONÔMICA PRINCIPAL 20.99-1-99 - Fabricação de outros produtos químicos não especificados anteriormente CÓDIGO E DESCRIÇÃO DAS ATIVIDADES ECONÔMICAS SECUNDÁRIAS 46.79-6-01 - Comércio atacadista de tintas, vernizes e similares 46.84-2-99 - Comércio atacadista de outros produtos químicos e petroquímicos não especificados anteriormente 46.63-0-00 - Comércio atacadista de Máquinas e equipamentos para uso industrial; partes e peças 28.66-6-00 - Fabricação de máquinas e equipamentos para a indústria do plástico, peças e acessórios 82.11-3-00 - Serviços combinados de escritório e apoio administrativo 64.63-8-00 - Outras sociedades de participação, exceto holdings 71.20-1-00 - Testes e análises técnicas 22.29-3-02 - Fabricação de artefatos de material plástico para usos industriais CÓDIGO E DESCRIÇÃO DA NATUREZA JURÍDICA 206-2 - Sociedade Empresária Limitada LOGRADOURO AV FRANCISCO NAKASATO NÚMERO 1700 COMPLEMENTO ******** CEP 13.295-000 BAIRRO/DISTRITO SAO ROQUE DA CHAVE MUNICÍPIO ITUPEVA UF SP ENDEREÇO ELETRÔNICO FABIANA.SILVA@POLYONE.COM TELEFONE (11) 4593-9279/ (11) 4593-9252 ENTE FEDERATIVO RESPONSÁVEL (EFR) ***** SITUAÇÃO CADASTRAL ATIVA DATA DA SITUAÇÃO CADASTRAL 08/04/2005 MOTIVO DE SITUAÇÃO CADASTRAL SITUAÇÃO ESPECIAL ******** DATA DA SITUAÇÃO ESPECIAL ******** Aprovado pela Instrução Normativa RFB nº 1.863, de 27 de dezembro de 2018.

% Pigment Specific Gravity Color Index Lightfastness WHITE 10EPX03 Titanium Dioxide, Rutile 57 1.95 PW-6 I/O YELLOW 12EPX01 Diarylide AAOT GS 25 1.22 PY-14 I 12EPX03 Diarylide HR RS 20 1.2 PY-83 I/O (Mass) 13EPX02 Isoindolinone RS 30 1.3 PY-110 I/O 13EPX03 Benzimidazolone GS 40 1.27 PY-151 I/O (Mass) 81EPX01 Iron Oxide 40 1.62 PY-42 I/O ORANGE 15EPX03 Benzimidazolone 30 1.26 PO-36 I/O RED 23EPX04 Quinacridone BS 25 1.21 PV-19 I/O 23EPX06 Specialty Naphthol BS 30 1.21 PR-170 I/O (Mass) C 25EPX01 Red 2B, Ca Salt Bs 24 1.27 PR-48:2 I/O (Mass) 28EPX01 Red 2B, Ba Salt YS 23 1.29 PR-48:1 I/O (Mass) 82EPX01 Iron Oxide, Light BS 40 1.67 PR-101 I/O 82EPX02 Iron Oxide, Dark BVS 40 1.68 PR-101 I/O 82EPX04 Iron Oxide, Light VYS 40 1.67 PR-101 I/O BLUE 40EXP03 Phthalocyanine GS 25 1.25 PB-15:3 I/O 40EXP05 Phthalocyanine RS 25 1.25 PB-15:3 I/O 42EXP02 Ultramarine 50 1.54 PB-29 I/O 49EXP01 Cobalt 50 1.83 PB-28 I/O GREEN 50EPX02 Phthalocyanine BS 18 1.34 PG-7 I/O 50EPX03 Phthalocyanine YS 25 1.42 PG-7 I/O 59EPX01 Chromium Oxide 40 1.64 PG-17 I/O VIOLET/MAGENTA 24EPX03 Quinacridone Violet 15 1.2 PV-19 I/O 24EPX04 Ultramarine Violet 50 1.66 PV-15 I/O 24EPX05 Quinacridone Magenta 20 1.21 PR-122 I/O 24EPX06 Benzimidazolone 20 1.2 PV-32 I/O 24EPX07 Carbazole Violet 15 1.2 PV-23 I/O BROWN/TAN 83EPX01 Iron Oxide, Light 39 1.64 PBr-6 I/O 83EPX02 Iron Oxide, Dark 40 1.66 PBr-6 I/O BLACK 90EPX01 Furnace - High Jet 14 1.23 PBk-7 I/O 90EPX04 Furnace - Medium 20 1.25 PBk-7 I/O 90EPX05 Iron Oxide 50 1.77 PBk-11 I/O EPX RS = Red Shade YS = Yellow Shade VYS = Very Yellow Shade BS = Blue Shade VBS = Very Blue Shade GS = Green Shade HR = Heat-Resistant LIGHTFASTNESS I = Indoor Only I/O = Indoor or Outdoor Mass = Outdoor Masstone Application Only C = Some Caution Advised www.avient.com Copyright © 2020, Avient Corporation.

KEY CHARACTERISTICS ECCOH 5924 FORMULATION ECCOH 5981 FORMULATION ECCOH 5983 UV FORMULATION Material Standards BS7655-6, 1 (LTS1–4), BS6724, IEC 60502 BS7655-6, 1 (LTS3) BS7655-6, 1 (LTS1–4) Tear Strength at 23°C 7.7 N/mm 10 N/mm 11 N/mm Tear Strength at 65°C 2.3 N/mm 5 N/mm 6.5 N/mm Hot Pressure Test (6h at 90°C) 39% –

PolyOne Corporation Page 4 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 • 19 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 • Goal of $2.50 Adjusted EPS by 2015, nearly double 2013 EPS • Drive double digit operating income and adjusted EPS growth PolyOne Corporation Page 5 Building & Construction 13% Industrial 12% Transportation 18% Wire & Cable 9% Packaging 16% Consumer 10% HealthCare 11% Appliance 6% Electronics & Electrical 5% 2013 Revenues: $3.8 Billion End Markets 2013 Revenues: $3.8 Billion PolyOne At A Glance United States 67% Europe 14% Canada 7% Asia 6% Latin America 6% Specialty 54% PP&S 18% Distribution 28% $13 $31 $46 $46 $92 $96 $122 $195 $0 $50 $100 $150 $200 2006 2007 2008 2009 2010 2011 2012 2013 Specialty Operating Income PolyOne Corporation Page 6 Old PolyOne Transformation *Operating Income excludes corporate charges and special items 2% 34% 43% 62% 66% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2013 2014 YTD 2015 % o f O p e ra ti n g I n c o m e * JV's Performance Products & Solutions Distribution Specialty 65-75% Specialty OI $5M $46M $87M $195M $129M Target Mix Shift Highlights Specialty Transformation 2015 Target PolyOne Corporation Page 7 Confirmation of Our Strategy The World’s Premier Provider of Specialized Polymer Materials, Services and Solutions Specialization Globalization Operational Excellence Commercial Excellence PolyOne Corporation Page 8 Strategy and Execution Drive Results $0.12 $0.27 $0.21 $0.13 $0.68 $0.82 $1.00 $1.31 '06 '07 '08 '09 '10 '11 '12 '13 ‘06-‘13 EPS CAGR = 41% EPS Share Price vs. S&P 500 -150% -50% 50% 150% 250% 350% 450% 550% POL S&P 500 All time high of $43.34 July 1st, 2014 PolyOne Corporation Page 9 2006 2014 YTD 2015 “Where we were” “Where we are” Target 1) Operating Income % Specialty: Global Color, Additives & Inks 1.7% 15.2% 12 – 16% Global Specialty Engineered Materials 1.1% 11.8% 12 – 16% Designed Structures & Solutions -- 7.1% 8 – 10% Performance Products & Solutions 5.5% 8.0% 9 – 12% Distribution 2.6% 6.0% 6 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 66% 65 – 75% 3) ROIC* 5.0% 9.9% 15% 4) Adjusted EPS Growth N/A 40% 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 (Est. in 2012) PolyOne Corporation Page 10 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 PolyOne Corporation Page 11 Innovation Drives Earnings Growth *Percentage of Specialty Platform revenue from products introduced in last five years $20 $53 2006 2013 Research & Development Spending ($ millions) Specialty Platform Vitality Index Progression* 14.3% 30.7% 2006 2013 Specialty Platform Gross Margin % 19.5% 43.0% 2006 2013 Specialty Vitality Index Target ≥ 35% PolyOne Corporation Page 12 Prototype Frame Opportunity Scale-up & Test Market Build Business Case Commercial Launch Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 4 11 5 10 6 9 3 4 2 15 9 1 10 4 Breakthrough Platform Derivative A Rich Pipeline of Opportunity* Number of Projects 25 14 19 17 18 93 Addressable Market ($ millions) TBD TBD $800 $450 $450 $1,700 *Pipeline as of May 29, 2014 as presented during our Innovation Day PolyOne Corporation Page 13 Megatrends Aligned with Key End Markets Decreasing Dependence on Fossil Fuels Protecting the Environment Improving Health and Wellness Megatrend End Markets Globalizing and Localizing Health & Wellness Transportation Packaging Consumer PolyOne Corporation Page 14 60% 100% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2008 2014 Pension Funding** As of June 30, 2014 Debt Maturities & Pension Funding – 6/30/14 Net Debt / EBITDA* = 1.8x $48 $317 $600 $0 $100 $200 $300 $400 $500 $600 $700 $800 2015 2020 2023 Debt Maturities As of June 30, 2014 ($ millions) Coupon Rates: 7.500% 7.375% 5.250% ** includes US-qualified pension plans only *TTM 6/30/2014 PolyOne Corporation Page 15 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 Targets that expand our: • Specialty offerings • End market presence • Geographic footprint • Operating Margin Synergy opportunities Adjacent material solutions Repurchased 1.8 million shares in Q2 2014 Repurchased 8.2 million shares since early 2013  11.8 million shares are available for repurchase under the current authorization Organic Growth Acquisitions Share Repurchases Dividends  Investing in operational and LSS initiatives (including synergy capture) Manufacturing alignment PolyOne Corporation Page 16 PolyOne Core Values Innovation Collaboration Excellence PolyOne Corporation Page 17 The New PolyOne: A Specialty Growth Company Why Invest In PolyOne?