LIGHT RED TRSP LIGHT TRSP RED WHITE TPE

LIGHT BLUE 304 WEV-WHITE ABS LIGHT BLUE 635

WHITE LIGHT SAND 583 LIGHT HOP

CLEVELAND – October 31, 2018 – At MD&M Minneapolis today, PolyOne Corporation announced that Trilliant™ HC material outperforms FR PC/ABS after exposure to harsh disinfectants, according to tensile strength stress tests performed by an independent A2LA-accredited lab. Testing results show that Trilliant HC 2020 retains higher tensile strength than common FR PC/ABS materials after seven-day exposure to typical disinfectants. Developed as a drop-in replacement for FR PC/ABS, this innovative Trilliant HC formulation was recently used successfully by a medical device OEM seeking to improve resistance to cracking and brittleness for its housings.

LUBRIONE自润滑配方⸺不含聚四氟乙烯的解决方案 材料名称 基础树脂 增强填充物 润滑填充物 PA6 PA6/PA66 PA66 PBT PC PKE POM PPS LubriOne LB6000-5024 RS HI 自然色 Lubrione LB6000-5021 RS S1 Lubrione LB6000-5021 RS X2 LubriOne LB6000-5019 X1 黑色 LubriOne LB6700-5001 RS AF 黑色 LubriOne NN-000/01M 黑色 SO LubriOne REC LB6600-5030 RS 灰色 LubriOne LB3300-5010 RS 自然色 LubriOne LB3300-5005 RS 自然色 LubriOne REC LB3220-5001 RS C 自然色 X1 LubriOne LB8900-5010 GP 灰色 LubriOne LB8900-5006 RS PE 自然色 LubriOne LB8900-5004 RS PE 自然色 LubriOne LB4200-5022 黑色 LubriOne LB4200-5023 自然色 LubriOne LB9200-5012 RS PE 自然色 GF10 GF30 GF30 GF50 GF50 无填充 GF33 GF20 MI20 GF10 无填充 GF20 GF30 无填充 无填充 GF30 UHMWPE UHMWPE UHMWPE UHMWPE UHMWPE MoS2 石墨 UHMWPE UHMWPE UHMWPE 石墨 UHMWPE UHMWPE MoS2 UHMWPE UHMWPE

MC-73455PP LIGHT PEARL WHITE MC-7505PP WHITE MC-86101PV LIGHT GRAY 002014GYFVC

Deviation in dosing based on number of cycles during a trial with a global plastics processor Sh ot W ei gh t Cycles Solid Colorant System Sh ot W ei gh t Liquid Colorant System Cycles Potable Water CC10201265 (NSF), CC10201265 (NSF), CC01053598 (UL), CC10220196 (UL) Drain, Waste, Vent, Irrigation & Potable Water CC10201418 (NSF), CC10201270 (NSF) Sewer CC10256367 (NSF), CC01053774, CC10301922 Reclaimed Water CC10352848 (NSF), CC01055325 Electrical, Industrial, Conduit CC10201285 (NSF), CC01053733, CC10253767 (UL), CC10202712 (UL) CC01053731 (UL) Telecom, Conduit CC10270833 Electric Power Lines, Lighting Cable CC01054724, CC10267763 (UL), CC10212299 (UL) Industrial & Plumbing CC10335721 (NSF), CC01053205, CC01053205 (UL) Mining CC10201274 (NSF), CC01055504, CC10335364 (UL) Natural Gas, Oil CC01055504 (NSF), CC10201274 CC10335364 (UL) Irrigation CC10201272 (NSF) COLORMATRIX LIQUID COLORANTS FOR PVC PIPE, CONDUIT, AND FITTINGS APPLICATIONS Potable Water Drain, Waste, Vent, Irrigation & Potable Water Telecom, Conduit Sewer Electrical, Industrial, Conduit Reclaimed Water Irrigation Electric Power Lines, Lighting Cable Natural Gas, Oil Industrial & Plumbing Mining PVC Pipe and Conduit Color Wheel A HANDY REFERENCE TO PIPE IDENTIFICATION 1.844.4AVIENT www.avient.com Copyright © 2022, Avient Corporation.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements.  Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to:  Our ability to realize anticipated savings and operational benefits from the realignment of assets, including the planned closure of certain manufacturing facilities;  The timing of closings and shifts of production to new facilities related to asset realignments and any unforeseen loss of customers and/or disruptions of service or quality caused by such closings and/or production shifts;  Separation and severance amounts that differ from original estimates and amounts for non-cash charges related to asset write-offs and accelerated depreciation realignments of property, plant and equipment, that differ from original estimates;  Our ability to identify and evaluate acquisition targets and consummate acquisitions;  The ability to successfully integrate acquired companies into our operations, retain the management teams of acquired companies and retain relationships with customers of acquired companies including, without limitation, Spartech Corporation and Accella Performance Materials;  Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future;  The financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability;  The speed and extent of an economic recovery, including the recovery of the housing market;  Our ability to achieve new business gains; the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks;  Changes in polymer consumption growth rates and laws and regulations regarding the disposal of plastic materials in jurisdictions where we conduct business;  Changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online in the industries in which we participate;  Fluctuations in raw material prices, quality and supply and in energy prices and supply;  Production outages or material costs associated with scheduled or unscheduled maintenance programs;  Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters;  An inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions and employee productivity goals;  An inability to raise or sustain prices for products or services;  An inability to maintain appropriate relations with unions and employees;  Our ability to continue to pay regular quarterly cash dividends and the amounts and timing of any future dividends;  The amount and timing of repurchases of our common shares, if any;  Other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation  The above list of factors is not exhaustive url=http://de.wikipedia.org/wiki/Datei:Bayer-Logo.svg&rct=j&frm=1&q=&esrc=s&sa=U&ei=TfImVb6bAbeKsQTjp4DABA&ved=0CBYQ9QEwAA&sig2=Ci5ha-5qQAzO0chQpoDCLA&usg=AFQjCNHRuaPkX3dETrItqttgMxou7-a1Ow PolyOne Corporation Page 33 Innovation Pipeline Potential Global Specialty Engineered Materials Prototype Frame Opportunity Scale-up & Test Market Build Business Case Commercial Launch Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 3 6 2 3 4 4 2 2 1 3 3 1 3 2 1 Breakthrough Platform Derivative Addressable Market ($ millions) $400 $100 $200 PolyOne Corporation Page 34 Megatrends Aligned with Key End Markets Increasing Energy Efficiency Protecting the Environment Improving Health and Wellness Megatrend End Markets Globalizing and Localizing Health & Wellness Transportation Packaging Consumer Global Specialty Engineered Materials PolyOne Corporation Page 35 >$150M Revenue Potential Advanced Composites Healthcare Key Initiatives Light-weighting >$100M Revenue Potential Global Specialty Engineered Materials PolyOne Corporation Page 36 Platinum Vision 1.1% 8.0% 12.1% 20%+ 2006 2011 2014 2020 Platinum Vision World Class Operating Margin Accelerating Growth Global Specialty Engineered Materials Innovation Market Growth Geographic Expansion Collaboration PolyOne Corporation Page 37 Summary Accelerating growth is #1 priority • Collaboration across PolyOne • Market-driven Innovation • Commercial and Operational Excellence Global Specialty Engineered Materials PolyOne Corporation Page 38 Designed Structures and Solutions PolyOne Corporation Page 39 Custom Engineered Solutions 71% Packaging Solutions 29% Appliances 2%Building & Construction 8% Consumer 5% Healthcare 6% Industrial 23% Packaging 27% Transportation 30% 2014 Revenue by Industry Segment 2014 Revenues: $0.6 Billion At a Glance Designed Structures and Solutions PolyOne Corporation Page 40 Early Progress 1.4% 5.6% 7.3% 2012 2013 2014 Operating Margin $16 $33 $45 2012 2013 2014 Operating Income ($M) • Cultural shift from volume to value • Emphasis on commercial excellence • Mix shift to profitable portfolio of offerings • “Rightsizing” the operational footprint • Deploy Lean Six Sigma Designed Structures and Solutions PolyOne Corporation Page 41 A Lot of Work Remains with Tremendous Upside Potential Guided by our Four Pillar Strategy Specialization Globalization Operational Excellence Commercial Excellence Designed Structures and Solutions Focused on improving: • Quality • On-time Delivery • Operational Efficiency PolyOne Corporation Page 42 Innovating with Cross-Business Unit Technologies Designed Structures and Solutions Specialty Engineered Materials Color and Additives GLS ColorMatrix Geon • Flame retardant solutions • Flexible sound abatement materials • Energy dissipation • Replacement of leaded glass • Foaming technologies • Improved renewable packaging • Next generation barrier packaging • Glass replacement in packaging PolyOne Corporation Page 43 Who We Are Growing With Designed Structures and Solutions http://www.google.com/url?

Mid-range light protection solution Blocks 80-98% of visible light ColorMatrix™ Lactra™ SX Light Blocking Additive for PET

They are based on management's expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: our ability to realize anticipated savings and operational benefits from the realignment of assets, including the closure of manufacturing facilities; the timing of closings and shifts of production to new facilities related to asset realignments and any unforeseen loss of customers and/or disruptions of service or quality caused by such closings and/or production shifts; separation and severance amounts that differ from original estimates; amounts for non-cash charges related to asset write-offs and accelerated depreciation realignments of property, plant and equipment, that differ from original estimates; our ability to identify and evaluate acquisition targets and consummate acquisitions; the ability to successfully integrate acquired businesses into our operations, such as Gordon Composites and Polystrand, including whether such businesses will be accretive, retain the management teams of acquired businesses, and retain relationships with customers of acquired businesses; disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; the financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability; the speed and extent of an economic recovery, including the recovery of the housing market; our ability to achieve new business gains; the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; changes in polymer consumption growth rates and laws and regulations regarding the disposal of plastic in jurisdictions where we conduct business; changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online; fluctuations in raw material prices, quality and supply and in energy prices and supply; production outages or material costs associated with scheduled or unscheduled maintenance programs; unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; an inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions and employee productivity goals; an inability to raise or sustain prices for products or services; an inability to maintain appropriate relations with unions and employees; our ability to continue to pay cash dividends; the amount and timing of repurchases of our common shares, if any; and other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation.