MACHINE SIZING Shot Capacity & Barrel Sizing The size of the barrel needs to be large enough to ensure proper melting and mixing of the material, at the desired shot size . Typical shot sizes need to be between 30%–80% of barrel capacity . End of Fill Part Length Dynamic Pressure Hydrostatic Pressure P re s s u re Gate End Part FIGURE 61 - Deflection Equations H F WLMax Deflection: 0.002" (0.05mm) 1 = W • H3 12 _______ bending = F • L3 48 • E • I _______ 4 π tc = h2 1n π2 • a • Tmelt – Tcoolant Teject – Tcoolant tc = D2 1.61n 23.1 • a Tmelt – Tcoolant Teject – Tcoolant a = k p * Cp Qmoldings = mmoldings • Cp • Tme • Cplt – Teject cooling nlines moldings tccooling Vcoolant line nmax, coolant • Pcoolant • Cp, coolant Dmax = 4 • Pcoolant • Vcoolant π • µcoolant • 4000 Dmin = Pcoolant • Lline • V2coolant5 10π • ∆Pline 4 π tc = h2 1n π2 • a • Tmelt – Tcoolant Teject – Tcoolant tc = D2 1.61n 23.1 • a Tmelt – Tcoolant Teject – Tcoolant a = k p * Cp Qmoldings = mmoldings • Cp • Tme • Cplt – Teject cooling nlines moldings tccooling Vcoolant line nmax, coolant • Pcoolant • Cp, coolant Dmax = 4 • Pcoolant • Vcoolant π • µcoolant • 4000 Dmin = Pcoolant • Lline • V2coolant5 10π • ∆Pline 4 π tc = h2 1n π2 • a • Tmelt – Tcoolant Teject – Tcoolant tc = D2 1.61n 23.1 • a Tmelt – Tcoolant Teject – Tcoolant a = k p * Cp Qmoldings = mmoldings • Cp • Tme • Cplt – Teject cooling nlines moldings tccooling Vcoolant line nmax, coolant • Pcoolant • Cp, coolant Dmax = 4 • Pcoolant • Vcoolant π • µcoolant • 4000 Dmin = Pcoolant • Lline • V2coolant5 10π • ∆Pline FIGURE 60 - Pressure vs Part Length FIGURE 61 - Deflection equations FIGURE 62 - For Plate Shaped Parts FIGURE 63 - For Cylindrical Shaped Parts Design Guide 49 • M Moldings = Combined mass of molded parts • C p = Specific Heat of the material Step 3 – Heat Removal Rate • N lines = The total number of independent cooling lines there are in the mold • t c = The cooling time required by the part (Determined in step 1) Step 4 – Coolant Volumetric Flow Rate • ΔT Max,Coolant = Change in coolant Temperature During Molding (1°C) • ρ Coolant = Density of coolant • CP = Specific heat of coolant Step 5 – Determine Cooling Line Diameter • ρ Coolant = Density of coolant • V Coolant = Volumetric flow rate of coolant • μ Coolant = Viscosity of coolant • ΔP line = Max pressure drop per line (Usually equals half of the pump capacity) • L Line = Length of the cooling lines COOLING LINE SPACING 4 π tc = h2 1n π2 • a • Tmelt – Tcoolant Teject – Tcoolant tc = D2 1.61n 23.1 • a Tmelt – Tcoolant Teject – Tcoolant a = k p * Cp Qmoldings = mmoldings • Cp • Tme • Cplt – Teject cooling nlines moldings tccooling Vcoolant line nmax, coolant • Pcoolant • Cp, coolant Dmax = 4 • Pcoolant • Vcoolant π • µcoolant • 4000 Dmin = Pcoolant • Lline • V2coolant5 10π • ∆Pline 4 π tc = h2 1n π2 • a • Tmelt – Tcoolant Teject – Tcoolant tc = D2 1.61n 23.1 • a Tmelt – Tcoolant Teject – Tcoolant a = k p * Cp Qmoldings = mmoldings • Cp • Tme • Cplt – Teject cooling nlines moldings tccooling Vcoolant line nmax, coolant • Pcoolant • Cp, coolant Dmax = 4 • Pcoolant • Vcoolant π • µcoolant • 4000 Dmin = Pcoolant • Lline • V2coolant5 10π • ∆Pline 4 π tc = h2 1n π2 • a • Tmelt – Tcoolant Teject – Tcoolant tc = D2 1.61n 23.1 • a Tmelt – Tcoolant Teject – Tcoolant a = k p * Cp Qmoldings = mmoldings • Cp • Tme • Cplt – Teject cooling nlines moldings tccooling Vcoolant line nmax, coolant • Pcoolant • Cp, coolant Dmax = 4 • Pcoolant • Vcoolant π • µcoolant • 4000 Dmin = Pcoolant • Lline • V2coolant5 10π • ∆Pline 4 π tc = h2 1n π2 • a • Tmelt – Tcoolant Teject – Tcoolant tc = D2 1.61n 23.1 • a Tmelt – Tcoolant Teject – Tcoolant a = k p * Cp Qmoldings = mmoldings • Cp • Tme • Cplt – Teject cooling nlines moldings tccooling Vcoolant line nmax, coolant • Pcoolant • Cp, coolant Dmax = 4 • Pcoolant • Vcoolant π • µcoolant • 4000 Dmin = Pcoolant • Lline • V2coolant5 10π • ∆Pline 4 π tc = h2 1n π2 • a • Tmelt – Tcoolant Teject – Tcoolant tc = D2 1.61n 23.1 • a Tmelt – Tcoolant Teject – Tcoolant a = k p * Cp Qmoldings = mmoldings • Cp • Tme • Cplt – Teject cooling nlines moldings tccooling Vcoolant line nmax, coolant • Pcoolant • Cp, coolant Dmax = 4 • Pcoolant • Vcoolant π • µcoolant • 4000 Dmin = Pcoolant • Lline • V2coolant5 10π • ∆Pline 4 π tc = h2 1n π2 • a • Tmelt – Tcoolant Teject – Tcoolant tc = D2 1.61n 23.1 • a Tmelt – Tcoolant Teject – Tcoolant a = k p * Cp Qmoldings = mmoldings • Cp • Tme • Cplt – Teject cooling nlines moldings tccooling Vcoolant line nmax, coolant • Pcoolant • Cp, coolant Dmax = 4 • Pcoolant • Vcoolant π • µcoolant • 4000 Dmin = Pcoolant • Lline • V2coolant5 10π • ∆Pline 2D < H line < 5D H line < W line < 2H line FIGURE 70 - Cooling Line Spacing FIGURE 64 - Heat Transfer Equation FIGURE 65 - Total Cooling for Mold FIGURE 66 - Cooling Required by Each Line FIGURE 68 - Max Diameter Equation FIGURE 69 - Min Diameter Equation FIGURE 67 - Volumetric Flow Rate Equation 50 Gravi-Tech ADHESIVE ADVANTAGES DISADVANTAGES Cyanoacrylate Rapid, one-part process Various viscosities Can be paired with primers for polyolefins Poor strength Low stress crack resistance Low chemical resistance Epoxy High strength Compatible with various substrates Tough Requires mixing Long cure time Limited pot life Exothermic Hot Melt Solvent-free High adhesion Different chemistries for different substrates High temp dispensing Poor high temp performance Poor metal adhesion Light Curing Acrylic Quick curing One component Good environmental resistance Oxygen sensitive Light source required Limited curing configurations Polyurethane High cohesive strength Impact and abrasion resistance Poor high heat performance Requires mixing Silicone Room temp curing Good adhesion Flexible Performs well in high temps Low cohesive strength Limited curing depth Solvent sensitive No-Mix Acrylic Good peel strength Fast cure Adhesion to variety of substrates Strong odor Exothermic Limited cure depth Design Guide 51 Bibliography 1 .

ANNUAL GROWTH FORECAST Source: Smithers report The Future of Thermoplastic Elastomers to 2024 and Ceresana Market Study: Silicones 3rd. The results were impressive: • Better tension set, improved compression and enhanced permeability • Slashed $70,000 from production costs by reducing cycle times and eliminating assembly steps • Lower specific gravity of TPEs trimmed overall part weight, which cut $36,000 in annual freight costs • Reprocessability of TPEs shrank scrap rates, saving more than $70,000 in material waste SWITCH TO TPEs BOOSTS BOTTOM LINE CASE STUDY READ MORE ONLINE For a manufacturer seeking to redesign a liquid injection-molded silicone medical pump valve insert, Avient suggested custom-formulated grades of Dynalloy™ OBC and Versaflex™ TPEs that would deliver better multi-functional performance than the previous design, while also facilitating easier two-shot molding.

Avient Corporation 1 J E F F E R I E S V I R T U A L I N D U S T R I A L S C O N F E R E N C E A U G U S T 2 0 2 0 Avient Corporation 2 FORWARD LOOKING STATEMENTS • • • • • • • • • • • • • • • • • • • • Avient Corporation 3 U S E O F N O N - G A A P M E A S U R E S • • • Avient Corporation 4 U P D A T E O N T H E C O V I D - 1 9 P A N D E M I C • • • • Avient Corporation 5 2019 Transportation Consumer Discretionary Healthcare Packaging All Other Industries Cost Containment FX 2020 $64.3 18% 18% 9% 6% 16% 2% $46.9 20% • • • • • • S E C O N D Q U A R T E R 2 0 2 0 I N R E V I E W Consumer Discretionary Avient Corporation 6 CLARIANT MASTERBATCH STRATEGIC RATIONALE Avient Corporation 7 F I T W I T H F O U R P I L L A R S T R A T E G Y Specialization • • • Globalization • • Operational Excellence • • • Commercial Excellence • • People Avient Corporation 8 5% 2006 2019E PF* 4% 12% 10% 18% 8% 20% 2006 2019E PF* Healthcare Consumer Packaging 38% * 2019E Pro Forma for PP&S Divestiture and Clariant Masterbatch business Percentage of Total Revenue E N D M A R K E T T R A N S F O R M A T I O N Building & Construction High Growth End Markets 50% 22% Avient Corporation 9 Wire & Cable 11% Industrial 10% Electrical & Electronic 7% Healthcare 4% Packaging 8% Consumer 10% Transportation 12% Building & Construction 38% Healthcare 12% Packaging 20% Consumer 18%Transportation 12% Building & Constrution 5% Wire & Cable 9% Industrial 11% Electrial & Electronic 4% Appliance 2% Textiles 7% 2006 Pro Forma(1) Net Sales by End Market E N D M A R K E T T R A N S F O R M A T I O N Avient Corporation 10 U N I F I E D F O C U S O N S U S T A I N A B I L I T Y 2006 - 2013 2013 – 2019 P E O P L E P R O D U C T S P L A N E T P E R F O R M A N C E •• •• •• Avient Corporation 11 O V E R 8 5 % O F A D J U S T E D E B I T D A F R O M S P E C I A L T Y 46% 66% 0% 20% 40% 60% 80% 100% 2005 2010 2015 Pro Forma % o f A d ju s t e d E B IT D A ( 1 ) JVs Performance Products & Solutions Distribution Specialty 7% 87% (2) Avient Corporation 12 T H E N E W A V I E N T : A S P E C I A L T Y G R O W T H C O M P A N Y     Transaction expected to add $0.85 to pro forma adjusted EPS Avient Corporation 13 SUSTAINABILITY AT AVIENT P E O P L E , P R O D U C T S , P L A N E T , P E R F O R M A N C E Avient Corporation 13 Avient Corporation 14 V I S I O N To be the world’s premier provider of specialized polymer materials, services and solutions C O R E V A L U E S P E R S O N A L V A L U E S Honesty IntegrityRespect Operational Excellence Commercial Excellence Specialization Globalization Collaboration ExcellenceInnovation To be the world’s premier provider of specialized polymer materials, services and sustainable solutions Avient Corporation 15 1.3 1.1 1.1 0.85 0.65 0.57 0.54 0.97 0.84 0.74 0.74 0.69 0.51 0.56 0.14 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 YTD S A F E T Y F I R S T Injuries per 100 Workers Spartech Acquisition Avient Corporation 16 G R E A T P L A C E T O W O R K Avient Corporation 17 C O M M O D I T Y T O S P E C I A L T Y T R A N S F O R M A T I O N • • • • • • • • • • • • 2006 - 2013 2013 – 20192000-2005 2006 - 2013 • • 2020 and Beyond Avient Corporation 18 A V I E N T 2 0 1 9 R E V E N U E | $ 2 . 9 B I L L I O N Segment End Market Geography Healthcare 15% Industrial 14% Consumer 14% Packaging 13% Transportation 13% Wire & Cable 11% Building & Construction 6% Electrical & Electronics 6% Textiles 5% Appliance 3% Color Additives & Inks 34% Distribution 41% Specialty Engineered Materials 25% United States 54% Europe 19% Asia 11% Latin America 11% Canada 5% Avient Corporation 19 Operating Income % of Sales 2006 2019 Color, Additives & Inks 1.7% 14.7% Specialty Engineered Materials 1.1% 11.6% Distribution 2.6% 6.3% 2009 2010 2011 2012 2013 2014 2015 2016* 2017* 2018 $2.43 P R O O F O F P E R F O R M A N C E C O N S E C U T I V E Y E A R S 1 0 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 $1.96 $2.06 $2.21 A D J U S T E D E P S E X P A N S I O N 2018 2019 $1.69 $1.51 Avient Corporation 20 531 710 1,032 130 164 207 504 663 871 2014 2018 Pro Forma R&D / Technical Marketing Sales + 34% + 26% + 32% E X P A N S I O N O F C O M M E R C I A L R E S O U R C E S D R I V I N G G R O W T H Revenue in Billions Total + 10% Organic + 7%+ 45% + 26% + 31% $4.0 $3.2 (2) (1) (1) $2.9 $2.9 $3.5 2015 2016 2017 2018 Pro Forma Total + 9% Organic + 5% Pro Forma(2) Avient Corporation 21 P R I O R A C Q U I S I T I O N S H I S T O R Y Commercial Resources(1) Operating Income ($ in millions) Operating Margins 256 350 At Acquisition 2019 $36 $100 At Acquisition 2019 9% 19% At Acquisition 2019 Established Acquisitions (> 7 years) + 37% + 176% + 1000 bps Avient Corporation 22 A L I G N I N G W I T H T R E N D S F O R G R O W T H T R A N S P O R T A T I O N P A C K A G I N G H E A L T H C A R E C O N S U M E R Facilitate alternative energy solutions Light- weighting Reduce packaging materials Improve recyclability Reduce spread of infection Avient Corporation 23 I N N O V A T I O N Customization 55% M&A 30% Innovation Pipeline 15% Innovation comes from Research & Development Spend Vitality Index 12% 37% 2006 2019 $20 $51 2006 2019 Avient Corporation 24 R E V E N U E F R O M S U S T A I N A B L E S O L U T I O N S $275M $325M $355M $410M 14% Total Annual Growth 9% Organic Annual Growth Avient Corporation 25 SEGMENT HIGHLIGHTS I N N O V A T I N G W I T H A V I E N T Avient Corporation 25 Avient Corporation 26 C O L O R , A D D I T I V E S & I N K S E N D M A R K E T S & S O L U T I O N S Solid Colorants Performance Additives Screen Printing Inks Liquid Colorants Packaging 31% Industrial 14% Textiles 13% Wire & Cable 10% Building & Construction 9% Consumer 8% Transportation 7% Healthcare 5% Appliances 2% Electrical & Electronics 1% Avient Corporation 26 Avient Corporation 27 Operating Income & MarginRevenue by Region C O L O R , A D D I T I V E S & I N K S 2 0 1 9 R E V E N U E | O V E R $ 1 B I L L I O N Europe 34% United States 44% Asia 15% Canada 1% Mexico 3% South America 3% $4 $25 $104 $147 2005 2009 2013 2019 0.9% 5.5% 12.2% 14.7% Avient Corporation 27 Avient Corporation 28 S P E C I A L T Y E N G I N E E R E D M A T E R I A L S E N D M A R K E T S & S O L U T I O N S Engineered Formulations Advanced Composites Thermoplastic Elastomers Wire & Cable* 28% Consumer 19% Electrical & Electronics 12% Healthcare 9% Industrial 8% Packaging 6% Appliance 2% Building & Construction 2% Transportation 14% Avient Corporation 28 Avient Corporation 29 S P E C I A L T Y E N G I N E E R E D M A T E R I A L S Revenue by Region Operating Income & Margin 2 0 1 9 R E V E N U E | $ 7 5 0 M I L L I O N Europe 27% United States 54% Asia 17% Canada 2% $21 $57 $87 2005 2009 2013 2019 0.1% 5.1% 9.3% 11.6% Avient Corporation 29 Avient Corporation 30 D I S T R I B U T I O N E N D M A R K E T S & S U P P L I E R S Healthcare 28% Industrial 19% Transportation 18% Consumer 17% Appliance 6% Electrical & Electronics 5% Building & Construction 4% Packaging 2% Wire & Cable 1% Operating Income & Margin2019 Revenue | $1.2 Billion $25 $63 $75 2005 2009 2013 2019 $20 2.9% 4.0% 5.9% 6.3% Avient Corporation 30 http://www.avient.com/Pages/VariationRoot.aspx Avient Corporation 31 O V E R V I E W O F R A W M A T E R I A L P U R C H A S E S Avient Corporation 31 Avient Corporation 32 Avient Corporation 33 Adjusted EPS attributable to PolyOne common shareholders is calculated as follows: 2009* 2010* 2011* 2012* 2013* 2014* 2015* 2016** 2017** 2018 2018*** Q1 2019*** 2019 Q1 2020 Net income from continuing operations attributable to PolyOne common shareholders Joint venture equity earnings, after tax Special items, before tax (1) Special items, tax adjustments (1) Adjusted net income from continuing operations attributable to PolyOne common shareholders $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 $ 144.6 $ 166.4 $ 173.5 $ 161.1 $ 87.7 $ 22.4 $ 75.5 $ 33.1 (19.0) (14.7) (3.7) — — — — — — — — — — — (48.7) 24.2 (48.1) 55.1 46.3 164.2 87.6 23.8 32.9 59.5 58.7 12.2 61.7 9.6 (27.2) (96.7) (24.7) (18.9) (13.7) (73.7) (58.7) (15.9) (24.8) (25.3) (25.1) (1.2) (5.9) (1.0) $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 $ 173.5 $ 174.3 $ 181.6 $ 195.3 $ 121.3 $ 33.4 $ 131.3 $ 41.7 Diluted shares 93.4 96.0 94.3 89.8 96.5 93.5 88.7 84.6 82.1 80.4 80.4 78.2 77.7 86.7 Adjusted EPS attributable to PolyOne common shareholders $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 $ 1.96 $ 2.06 $ 2.21 $ 2.43 $ 1.51 $ 0.43 $ 1.69 $ 0.48 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principle, discontinued operations or the related resegmentation. ** Pro forma for sale of Designed Structures and Solutions segment (DSS). *** Pro forma for sale of Performance Products and Solutions segment (PP&S).

Investor Day P O L Y O N E I N V E S T O R P R E S E N T A T I O N M A R C H 2 0 1 9 F O R W A R D L O O K I N G S T A T E M E N T S PolyOne Corporation 2 • • • • • • • • • • U S E O F N O N - G A A P M E A S U R E S PolyOne Corporation 3 • • • V I S I O N PolyOne Corporation 4 To be the world’s premier provider of specialized polymer materials, services and solutions C O R E V A L U E S P E R S O N A L V A L U E S Honesty IntegrityRespect Operational Excellence Commercial Excellence Specialization Globalization Collaboration ExcellenceInnovation To be the world’s premier provider of specialized polymer materials, services and solutions S A F E T Y F I R S T PolyOne Corporation 5 Injuries per 100 Workers Spartech Acquisition 1.3 1.1 1.1 0.85 0.65 0.57 0.54 0.97 0.84 0.74 0.74 0.69 0.51 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 PolyOne Corporation 6 P O L Y O N E 2 0 1 8 R E V E N U E | $ 3 . 5 B I L L I O N Transportation 17% Industrial 15% Consumer 12% Packaging 11% Wire & Cable 10% Appliance 5% United States 57% Europe 16% Asia 10% Latin America 10% Canada 7% Distribution 35% Performance Products & Solutions 19% Specialty Engineered Materials 17% Color Additives & Inks 29% Segment End Market Geography Building & Construction 11% Electrical & Electronics 6% Healthcare 13% 2009 2010 2011 2012 2013 2014 2015 2016* 2017* 2018 $2.43 P R O O F O F P E R F O R M A N C E C O N S E C U T I V E Y E A R S PolyOne Corporation 7 9 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 $1.96 $2.06 $2.21 2006 2018 ROIC** 5.0% 14.1% Operating Income % of Sales Color, Additives & Inks 1.7% 15.1% Specialty Engineered Materials 1.1% 11.2% Performance Products & Solutions 4.3% 10.0% Distribution 2.6% 5.6% A D J U S T E D E P S E X P A N S I O N S U S T A I N A B L E P A T H T O D O U B L E - D I G I T E P S G R O W T H PolyOne Corporation 8 P E O P L E P R O D U C T S P L A N E T P E R F O R M A N C E Double digit annual EPS growth strategic acquisitions Innovate 600K-1M commercial resources 5-7% Double acquired margins Lean Six Sigma commercial excellence 531 710 130 164 504 663 2014 2018 R&D / Technical Marketing Sales PolyOne Corporation 9 Increased commercial headcount + 34% + 26% + 32% I N V E S T M E N T I N C O M M E R C I A L R E S O U R C E S D R I V I N G G R O W T H Sustained revenue increases led by organic business $2.9 $2.9 $3.2 $3.5 2015 2016 2017 2018 Total + 9% Organic + 5% Revenue in billions of $ Total + 10% Organic + 7% Lead Specialists T H E E V O L V I N G C U S T O M E R R E L A T I O N S H I P PolyOne Corporation 10 Expanded Path Traditional Path Strategic Accounts/ Field Sales Business Development Customer Service Web and Social Media Inside Sales PolyOne Corporation 11 Investments in digital and dedicated inside sales to improve customer experience 110% increase in leads (from 6,000 to 12,700) driven by website, phone, and online chat E X P A N D E D P A T H A D D I N G C U S T O M E R T O U C H P O I N T S 4 24 2014 2018 Inside sellers $11M $109M 2014 2018 Inside sales/digital revenue A L I G N I N G W I T H T R E N D S F O R G R O W T H T R A N S P O R T A T I O N P A C K A G I N G H E A L T H C A R E C O N S U M E R PolyOne Corporation 12 Facilitate alternative energy solutions Light- weighting Reduce packaging materials Improve recyclability Reduce spread of infection I N N O V A T I O N PolyOne Corporation 13 Customization 55% M&A 30% Innovation Pipeline 15% Innovation comes from Research & Development Spend Vitality Index 12% 35% 2006 2018 $20 $56 2006 2018 Transformational Adjacent Core 3 H O R I Z O N S O F D E V E L O P M E N T PolyOne Corporation 14 Market Technical I N N O V A T I O N I N N O V A T I O N P I P E L I N E PolyOne Corporation 15 PrototypeFrame Opportunity Scale-up & Test Market Build Business Case Commercial Launch (since 2017) Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 6 11 4 4 3 2 28 0 5 10 7 2 5 5 Breakthrough Platform Derivative F L A M E R E T A R D A N T P O L Y M E R S A D V A N C E D C O M P O S I T E S B A R R I E R M A T E R I A L S C O L O R A N T T E C H N O L O G I E S T H E R M O P L A S T I C E L A S T O M E R S I N N O V A T I O N S P O T L I G H T : C O M P O S I T E S PolyOne Corporation 16 C O M P O S I T E S R E F R E S H E R PolyOne Corporation 17 Fiber Polymer Composite S T R A T E G I C I N V E S T M E N T H I S T O R Y Thermoplastic Composites Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets 2012 2015 20162009 2011 2018 PolyOne Corporation 2019 18 C O M P O S I T E S I N T R A N S P O R T A T I O N PolyOne Corporation 19 W A T E R C R A F TR A I L H E A V Y T R U C K F I B E R - L I N E H I G H L I G H T S PolyOne Corporation 20 $100M • • • • • • • • • • • • • • • • • • • Customer Value Fiber-Line Fiber Processing Capabilities Polymer Formulation Capabilities P O L Y O N E A P P L I C A T I O N S I N F I B E R O P T I C C A B L E S PolyOne Corporation 21 • • • • • • • • • F I B E R O P T I C A L G R O W T H D R I V E R S PolyOne Corporation 22 5G Networks      10x 8x 5G vs. 4G PolyOne Corporation 23 Safety Technology Geography Service FinancialPeople 8-10% with ability to double I N V E S T - T O - G R O W M & A S T R A T E G Y PolyOne Corporation 24 Capture sourcing synergies Cross-sell & blend technology 8-10% operating margins I N V E S T - T O - G R O W M & A P L A Y B O O K Protect customers Retain employees Implement LSS to drive efficiency improvements Innovate with combined portfolio Safety First! Leverage PolyOne’s global reach Phase 1 Phase 2 Phase 3 18-20% operating margins Invest in commercial resources I N V E S T - T O - G R O W P R O O F O F P E R F O R M A N C E PolyOne Corporation 25 Commercial Resources Operating Income ($ in millions) Operating Margins 243 340 At Acquisition Today $36 $96 At Acquisition Today 11% 20% At Acquisition Today Established Acquisitions (> 7 years) + 40% + 165% + 900 bps I N V E S T - T O - G R O W D R I V I N G T H E F U T U R E PolyOne Corporation 26 Commercial Resources Operating Income ($ in millions) Operating Margins 138 181 251 At Acquisition Today Goal $23 $25 $70 At Acquisition Today Goal 7% 8% 18-20% At Acquisition Today Goal Recent Acquisitions PolyOne Corporation 27 Average Company Size # of Possibilities Rationale $200M • • • S T R O N G P I P E L I N E D R I V E N B Y F R A G M E N T E D M A R K E T $0 $150 $300 $450 $600 $750 $900 2011 2012 2013 2014 2015 2016 2017 2018 $890M R E T U R N I N G C A S H T O S H A R E H O L D E R S O V E R $ 1 . 2 B I L L I O N S I N C E 2 0 1 1 PolyOne Corporation $0.16 $0.20 $0.24 $0.32 $0.40 $0.48 $0.54 $0.70 $0.78 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 3-Year Dividend Plan Cumulative Share Repurchases Increasing Annual Dividend 28 6.3% 14.1% 16-17% 2009 2018 Updated Expectations R O I C D R I V E S S H A R E H O L D E R R E T U R N PolyOne Corporation 29 PolyOne Corporation 30 W H Y I N V E S T I N P O L Y O N E ?

Investor Day P O L Y O N E I N V E S T O R P R E S E N T A T I O N A U G U S T 2 0 1 8 F O R W A R D L O O K I N G S T A T E M E N T S PolyOne Corporation 2 • • • • • • • • • U S E O F N O N - G A A P M E A S U R E S PolyOne Corporation 3 • • • V I S I O N PolyOne Corporation 4 To be the world’s premier provider of specialized polymer materials, services and solutions C O R E V A L U E S P E R S O N A L V A L U E S Honesty IntegrityRespect Operational Excellence Commercial Excellence Specialization Globalization Collaboration ExcellenceInnovation To be the world’s premier provider of specialized polymer materials, services and solutions S A F E T Y F I R S T PolyOne Corporation 5 1.3 1.1 1.1 0.85 0.65 0.57 0.54 0.97 0.84 0.74 0.74 0.69 0.57 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 YTD Injuries per 100 Workers Spartech Acquisition PolyOne Corporation 6 P O L Y O N E 2 0 1 7 R E V E N U E | $ 3 . 2 B I L L I O N Transportation 18% Industrial 16% Consumer 12% Packaging 11% Healthcare 11% Wire & Cable 9% Appliance 5% United States 59% Europe 14% Asia 10% Latin America 9% Canada 8% PolyOne Distribution 34% Performance Products & Solutions 21% Specialty Engineered Materials 19% Color Additives & Inks 26% Segment End Market Geography Building & Construction 12% Electrical & Electronics 6% 2009 2010 2011 2012 2013 2014 2015 2016* 2017* P R O O F O F P E R F O R M A N C E C O N S E C U T I V E Y E A R S PolyOne Corporation 7 8 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 $1.96 $2.06 $2.21 2006 2017 “Where we were” “Where we are” ROIC** 5.0% 14.0% Operating Income % of Sales Color, Additives & Inks 1.7% 15.5% Specialty Engineered Materials 1.1% 12.1% Performance Products & Solutions 4.3% 10.7% Distribution 2.6% 6.3% A D J U S T E D E P S E X P A N S I O N S U S T A I N A B L E P A T H T O D O U B L E - D I G I T E P S G R O W T H PolyOne Corporation 8 P E O P L E P R O D U C T S P L A N E T P E R F O R M A N C E Double digit annual EPS growth strategic acquisitions Innovate 600K-1M commercial resources 6-8% Double acquired margins Lean Six Sigma commercial excellence 531 689130 157 504 633 2014 Q2 2018 R&D / Technical Marketing Sales PolyOne Corporation 9 Increased commercial headcount + 28% + 18% + 23% Generating opportunities 35% 25% 1,000 $1.0B Enhancing efficiency 8% 20% I N V E S T M E N T I N C O M M E R C I A L R E S O U R C E S D R I V I N G G R O W T H Lead Specialists T H E E V O L V I N G C U S T O M E R R E L A T I O N S H I P PolyOne Corporation 10 Expanded Path Traditional Path Strategic Accounts/ Field Sales Business Development Customer Service Web and Social Media Inside Sales PolyOne Corporation 11 Investments in digital and dedicated inside sales to improve customer experience 80% increase in leads (from 6,000 to 11,000) driven by website, phone, and online chat E X P A N D E D P A T H A D D I N G C U S T O M E R T O U C H P O I N T S 4 21 2014 2017 Inside sellers $11M $88M 2014 2017 Inside sales/digital revenue N E W R E S O U R C E S F U E L I N G T H E F U T U R E PolyOne Corporation 12 P O L Y O N E S A L E S F U N N E L +34% 2014 $3.0 billion 2017 $4.0 billion A L I G N I N G W I T H T R E N D S F O R G R O W T H T R A N S P O R T A T I O N P A C K A G I N G H E A L T H C A R E C O N S U M E R PolyOne Corporation 13 Facilitate alternative energy solutions Light- weighting Reduce packaging materials Improve recyclability Reduce spread of infection I N N O V A T I O N PolyOne Corporation 14 Customization 55% M&A 30% Innovation Pipeline 15% Innovation comes from Research & Development Spend Vitality Index 12% 38% 2006 2017 $20 $52 2006 2017 Transformational Adjacent Core 3 H O R I Z O N S O F D E V E L O P M E N T PolyOne Corporation 15 Market Technical I N N O V A T I O N I N N O V A T I O N P I P E L I N E PolyOne Corporation 16 PrototypeFrame Opportunity Scale-up & Test Market Build Business Case Commercial Launch (since 2015) Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 8 5 6 2 1 15 4 10 5 11 4 5 7 Breakthrough Platform Derivative F L A M E R E T A R D A N T P O L Y M E R S A D V A N C E D C O M P O S I T E S B A R R I E R M A T E R I A L S C O L O R A N T T E C H N O L O G I E S T H E R M O P L A S T I C E L A S T O M E R S I N N O V A T I O N S P O T L I G H T : C O M P O S I T E S PolyOne Corporation 17 C O M P O S I T E S R E F R E S H E R PolyOne Corporation 18 Fiber Polymer Composite S T R A T E G I C I N V E S T M E N T H I S T O R Y Thermoplastic Composites Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets 2012 2015 20162009 2011 2018 PolyOne Corporation 19 C O M P O S I T E S I N T R A N S P O R T A T I O N PolyOne Corporation 20 W A T E R C R A F TR A I L H E A V Y T R U C K PolyOne Corporation 21 Safety Technology Geography Service FinancialPeople 8-10% with ability to double I N V E S T - T O - G R O W M & A S T R A T E G Y PolyOne Corporation 22 Capture sourcing synergies Cross-sell & blend technology 8-10% operating margins I N V E S T - T O - G R O W M & A P L A Y B O O K Protect customers Retain employees Implement LSS to drive efficiency improvements Innovate with combined portfolio Safety First! Leverage PolyOne’s global reach Phase 1 Phase 2 Phase 3 18-20% operating margins Invest in commercial resources I N V E S T - T O - G R O W P R O O F O F P E R F O R M A N C E PolyOne Corporation 23 Commercial Resources Operating Income ($ in millions) Operating Margins 243 335 At Acquisition Today $36 $90 At Acquisition Today 11% 20% At Acquisition Today Established Acquisitions (> 7 years) + 40% + 150% + 900 bps I N V E S T - T O - G R O W D R I V I N G T H E F U T U R E PolyOne Corporation 24 Commercial Resources Operating Income ($ in millions) Operating Margins 113 144 206 At Acquisition Today Goal $16 $18 $60 At Acquisition Today Goal 7% 8% 18-20% At Acquisition Today Goal Recent Acquisitions PolyOne Corporation 25 Average Company Size # of Possibilities Rationale $200M • • • S T R O N G P I P E L I N E D R I V E N B Y F R A G M E N T E D M A R K E T $0 $150 $300 $450 $600 $750 2011 2012 2013 2014 2015 2016 2017 2018 $809M R E T U R N I N G C A S H T O S H A R E H O L D E R S O V E R $ 1 B I L L I O N S I N C E 2 0 1 1 PolyOne Corporation $0.16 $0.20 $0.24 $0.32 $0.40 $0.48 $0.58 $0.70 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 3-Year Dividend Plan Cumulative Share Repurchases Increasing Annual Dividend 26 6.3% 14.0% 15.0% 16-17% 2009 2017 Platinum Vision Updated Expectations R O I C D R I V E S S H A R E H O L D E R R E T U R N PolyOne Corporation 27 PolyOne Corporation 28 W H Y I N V E S T I N P O L Y O N E ?

of annual interest expense savings.  annual incentive plans and is used in debt covenant computations.

HAIs constitute a significant burden (approximately 28-45 billion USD) to the U.S. healthcare system and affect 1.7 million patients annually.1,2 However, heavy chemical exposure to devices and other equipment that often contain various plastic components poses an additional challenge—many of the materials being used today are not designed to withstand such routine cleaning or the wide variety of disinfectants employed.

By 2040, a circular economy has the potential to reduce the annual volume of plastics entering our oceans by 80%, reduce greenhouse gas emissions by 25%, generate savings of $200 U.S. dollars per year and create 700,000 net additional jobs..

MACHINE SIZING Shot Capacity & Barrel Sizing The size of the barrel needs to be large enough to ensure proper melting and mixing of the material, at the desired shot size . Typical shot sizes need to be between 30%–80% of barrel capacity . End of Fill Part Length Dynamic Pressure Hydrostatic Pressure P re s s u re Gate End Part FIGURE 61 - Deflection Equations H F WLMax Deflection: 0.002" (0.05mm) 1 = W • H3 12 _______ bending = F • L3 48 • E • I _______ 4 π tc = h2 1n π2 • a • Tmelt – Tcoolant Teject – Tcoolant tc = D2 1.61n 23.1 • a Tmelt – Tcoolant Teject – Tcoolant a = k p * Cp Qmoldings = mmoldings • Cp • Tme • Cplt – Teject cooling nlines moldings tccooling Vcoolant line nmax, coolant • Pcoolant • Cp, coolant Dmax = 4 • Pcoolant • Vcoolant π • µcoolant • 4000 Dmin = Pcoolant • Lline • V2coolant5 10π • ∆Pline 4 π tc = h2 1n π2 • a • Tmelt – Tcoolant Teject – Tcoolant tc = D2 1.61n 23.1 • a Tmelt – Tcoolant Teject – Tcoolant a = k p * Cp Qmoldings = mmoldings • Cp • Tme • Cplt – Teject cooling nlines moldings tccooling Vcoolant line nmax, coolant • Pcoolant • Cp, coolant Dmax = 4 • Pcoolant • Vcoolant π • µcoolant • 4000 Dmin = Pcoolant • Lline • V2coolant5 10π • ∆Pline 4 π tc = h2 1n π2 • a • Tmelt – Tcoolant Teject – Tcoolant tc = D2 1.61n 23.1 • a Tmelt – Tcoolant Teject – Tcoolant a = k p * Cp Qmoldings = mmoldings • Cp • Tme • Cplt – Teject cooling nlines moldings tccooling Vcoolant line nmax, coolant • Pcoolant • Cp, coolant Dmax = 4 • Pcoolant • Vcoolant π • µcoolant • 4000 Dmin = Pcoolant • Lline • V2coolant5 10π • ∆Pline FIGURE 60 - Pressure vs Part Length FIGURE 61 - Deflection equations FIGURE 62 - For Plate Shaped Parts FIGURE 63 - For Cylindrical Shaped Parts Design Guide 49 • M Moldings = Combined mass of molded parts • C p = Specific Heat of the material Step 3 – Heat Removal Rate • N lines = The total number of independent cooling lines there are in the mold • t c = The cooling time required by the part (Determined in step 1) Step 4 – Coolant Volumetric Flow Rate • ΔT Max,Coolant = Change in coolant Temperature During Molding (1°C) • ρ Coolant = Density of coolant • CP = Specific heat of coolant Step 5 – Determine Cooling Line Diameter • ρ Coolant = Density of coolant • V Coolant = Volumetric flow rate of coolant • μ Coolant = Viscosity of coolant • ΔP line = Max pressure drop per line (Usually equals half of the pump capacity) • L Line = Length of the cooling lines COOLING LINE SPACING 4 π tc = h2 1n π2 • a • Tmelt – Tcoolant Teject – Tcoolant tc = D2 1.61n 23.1 • a Tmelt – Tcoolant Teject – Tcoolant a = k p * Cp Qmoldings = mmoldings • Cp • Tme • Cplt – Teject cooling nlines moldings tccooling Vcoolant line nmax, coolant • Pcoolant • Cp, coolant Dmax = 4 • Pcoolant • Vcoolant π • µcoolant • 4000 Dmin = Pcoolant • Lline • V2coolant5 10π • ∆Pline 4 π tc = h2 1n π2 • a • Tmelt – Tcoolant Teject – Tcoolant tc = D2 1.61n 23.1 • a Tmelt – Tcoolant Teject – Tcoolant a = k p * Cp Qmoldings = mmoldings • Cp • Tme • Cplt – Teject cooling nlines moldings tccooling Vcoolant line nmax, coolant • Pcoolant • Cp, coolant Dmax = 4 • Pcoolant • Vcoolant π • µcoolant • 4000 Dmin = Pcoolant • Lline • V2coolant5 10π • ∆Pline 4 π tc = h2 1n π2 • a • Tmelt – Tcoolant Teject – Tcoolant tc = D2 1.61n 23.1 • a Tmelt – Tcoolant Teject – Tcoolant a = k p * Cp Qmoldings = mmoldings • Cp • Tme • Cplt – Teject cooling nlines moldings tccooling Vcoolant line nmax, coolant • Pcoolant • Cp, coolant Dmax = 4 • Pcoolant • Vcoolant π • µcoolant • 4000 Dmin = Pcoolant • Lline • V2coolant5 10π • ∆Pline 4 π tc = h2 1n π2 • a • Tmelt – Tcoolant Teject – Tcoolant tc = D2 1.61n 23.1 • a Tmelt – Tcoolant Teject – Tcoolant a = k p * Cp Qmoldings = mmoldings • Cp • Tme • Cplt – Teject cooling nlines moldings tccooling Vcoolant line nmax, coolant • Pcoolant • Cp, coolant Dmax = 4 • Pcoolant • Vcoolant π • µcoolant • 4000 Dmin = Pcoolant • Lline • V2coolant5 10π • ∆Pline 4 π tc = h2 1n π2 • a • Tmelt – Tcoolant Teject – Tcoolant tc = D2 1.61n 23.1 • a Tmelt – Tcoolant Teject – Tcoolant a = k p * Cp Qmoldings = mmoldings • Cp • Tme • Cplt – Teject cooling nlines moldings tccooling Vcoolant line nmax, coolant • Pcoolant • Cp, coolant Dmax = 4 • Pcoolant • Vcoolant π • µcoolant • 4000 Dmin = Pcoolant • Lline • V2coolant5 10π • ∆Pline 4 π tc = h2 1n π2 • a • Tmelt – Tcoolant Teject – Tcoolant tc = D2 1.61n 23.1 • a Tmelt – Tcoolant Teject – Tcoolant a = k p * Cp Qmoldings = mmoldings • Cp • Tme • Cplt – Teject cooling nlines moldings tccooling Vcoolant line nmax, coolant • Pcoolant • Cp, coolant Dmax = 4 • Pcoolant • Vcoolant π • µcoolant • 4000 Dmin = Pcoolant • Lline • V2coolant5 10π • ∆Pline 2D < H line < 5D H line < W line < 2H line FIGURE 70 - Cooling Line Spacing FIGURE 64 - Heat Transfer Equation FIGURE 65 - Total Cooling for Mold FIGURE 66 - Cooling Required by Each Line FIGURE 68 - Max Diameter Equation FIGURE 69 - Min Diameter Equation FIGURE 67 - Volumetric Flow Rate Equation 50 Gravi-Tech ADHESIVE ADVANTAGES DISADVANTAGES Cyanoacrylate Rapid, one-part process Various viscosities Can be paired with primers for polyolefins Poor strength Low stress crack resistance Low chemical resistance Epoxy High strength Compatible with various substrates Tough Requires mixing Long cure time Limited pot life Exothermic Hot Melt Solvent-free High adhesion Different chemistries for different substrates High temp dispensing Poor high temp performance Poor metal adhesion Light Curing Acrylic Quick curing One component Good environmental resistance Oxygen sensitive Light source required Limited curing configurations Polyurethane High cohesive strength Impact and abrasion resistance Poor high heat performance Requires mixing Silicone Room temp curing Good adhesion Flexible Performs well in high temps Low cohesive strength Limited curing depth Solvent sensitive No-Mix Acrylic Good peel strength Fast cure Adhesion to variety of substrates Strong odor Exothermic Limited cure depth Design Guide 51 Bibliography 1 .

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.