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Chemically Resistant Polymers for Next Generation Devices Thermoplastic Elastomers in Medical Devices - White Paper Safety factors, barrier properties and applications of TPEs in medical devices

Learn more about using Bormed resin concentrates in medical devices, diagnostics and pharmaceutical packaging Mevopur™ Special Effects for Healthcare Devices and Pharmaceutical Packaging - Application Bulletin Learn about the key characteristics and regulatory support Mevopur™ Special Effect Colorants offer for healthcare devices and pharmaceutical packaging

Antenna Power Cable Power Tool Medical Device Housing

This calculation of adjusted EPS excludes the additional step-up in depreciation recognized in connection with the Clariant MB acquisition. Free Cash Flow Calculation Free Cash Flow Calculation

Free cash flow is calculated as follows: Liquidity is calculated as follows: Net debt to adjusted EBITDA is calculated as follows:

VALUE BENEFITS OF USING THE FLEXCART SYSTEM FlexCart & PlanetPak components create a market leading metering technology: • Robust and reliable system control • Reliable yield (99%) and sustainable packaging • Capability of data networking and remote internet support • Reduced changeover cost with interchangeable cassettes FLEXCART™ MELT INJECTION LIQUID METERING SYSTEM Combined with the PlanetPak™ delivery packaging ATTRIBUTE FLEXCART M.I. ATTRIBUTE PC PUMP CMG 6000 Metering throughput High – Volumetric/gravimetric V V/G Data export/network – Yes Touch screen – Yes Multiple log-in levels – Yes Multiple log-in levels – No www.avient.com Copyright © 2020, Avient Corporation.

VALUE BENEFITS OF USING THE FLEXCART MINI SYSTEM FlexCart units & PlanetPak containers create a market leading metering system: • Robust and dependable system control • Reliable yield (typically 99% using a PlanetPak) and sustainable packaging • Capability of data networking and remote internet support • Simplified changeover with interchangeable cassettes FLEXCART™ MINI LIQUID METERING SYSTEM Combined with the PlanetPak™ delivery packaging Note: PC = Progressing Cavity Pump Peri = Peristatic Pump ATTRIBUTE FLEXCART MINI Footprint (LxW cm) 98 x 38 Controller options 3000 5000 Typical max. throughput (kg/hr) 625 Max. metering rate (cc/s) 10 Continuous use Yes Transfer pumps Peri Metering pumps PC/Peri Interchangeable cassette Yes PLANETPAK™ CONTAINERS The FlexCart system is designed to work with the standardized PlanetPak container range of packaging, typically achieving 99% reliable yield while also achieving a sustainable packaging format that is fully recyclable. ATTRIBUTE PC PUMP PERI PUMP CMG 3000 CMG 5000 Delivery throughput – Low – – Metering throughput High Low – – Volumetric/gravimetric V V V V/G Data export/network – – No Yes Touch screen – – No Yes Multiple log-in levels – – No Yes The range of progressing cavity pump rates attainable can be used to determine the correct size of pump.

Factors that could cause actual results to differ materially from those implied by these forward looking statements include but are not limited to:• 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 achieve the strategic and other objectives relating to the Spartech acquisition, including any expected synergies; our ability to successfully  integrate Spartech and achieve the expected results of the acquisition, including, without limitation, the acquisition being accretive;  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;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 amount and timing of repurchases, if any, of PolyOne common shares and our ability to pay regular quarterly cash dividends and the amounts and  timing of any future dividends;  The effect on foreign operations of currency fluctuations, tariffs, and other political, economic and regulatory risks;  Changes in polymer consumption growth rates in the markets where we conduct business;g p y p g ;  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, employee productivity goals, and an inability to raise or sustain prices for products or services;, , p y p y g , y p p ;  An inability to maintain appropriate relations with unions and employees; 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. • The above list of factors is not exhaustive. • We undertake no obligation to publicly update forward‐looking statements, whether as a result of new information, future events or otherwise.   The non‐GAAP financial measures  i l d dj t d EPS i b f i t t t d i ti dinclude: adjusted EPS, earnings before interest, tax, depreciation and  amortization (EBITDA), adjusted EBITDA, net debt, Specialty platform operating  income, Specialty platform gross margin percentage, adjusted operating income,  return on invested capital, net debt/ EBITDA, and the exclusion of corporate p p charges in certain calculations.  Strong past performance demonstrates that our  strategy and execution are workinggy g • Megatrends align with our strengths • Innovation and services provide differentiation  and competitive advantage • Strong and proven management team driving  growth and performancegrowth and performance The New PolyOne: A Specialty Growth Company $2015 Target: $2.50 Adjusted EPS Page 16 Schedule I Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data) Below is a reconciliation of non-GAAP financial measures to the most directly comparable measures calculated and presented in accordance with U.S.

The new formulations are Avient’s first PCR-containing TPE technology developed primarily for overmolding polycarbonate (PC), acrylic butadiene styrene (ABS), and PC/ABS blends in applications from consumer electronics, cosmetics packaging, and personal care items to power tools and toys. Potential applications include various grips for computer mice, razors, hair brushes, phone cases, speaker gaskets, and tools and power equipment. Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility