INVESTOR DAY O R L A N D O , F L O R I D A | M A Y 2 0 1 8 FORWARD LOOKING STATEMENTS PolyOne Corporation 2 In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. I N V E S T O R D A Y A G E N D A M A Y 1 0 , 2 0 1 8 PolyOne Corporation 5 8:00 WELCOME BREAKFAST 9:00 Introduction: Bob Patterson 9:45 Investing for Growth: Michael Garratt Commercial Resources Innovation Service 10:15 SEGMENT REVIEWS PolyOne Distribution: Scott Horn Specialty Engineered Materials: Michael Garratt BREAK (10 MINUTES) SEGMENT REVIEWS (CONTINUED) Performance Products & Solutions: Don Wiseman Color, Additives & Inks: Mark Crist 11:40 Mergers & Acquisitions: Joel Rathbun 12:00 Financial Review: Brad Richardson 12:20 Conclusion/Q&A: Bob Patterson 1:00 LUNCH Bradley C. Tax adjustments include the net tax (expense) benefit from one-time income tax items, the set-up or reversal of uncertain tax position reserves and deferred income tax valuation allowance adjustments.

Investor Day POLYONE 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 8 FORWARD LOOKING STATEMENTS PolyOne Corporation 2 In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Material & Color Expertise Manufacturing Expertise 3 to 14 industrial designers $0 to $7M new business revenue $4M to $40M opportunities identified LSS CUSTOMER FIRST PolyOne Corporation 15 Customer Projects Cumulative LSS Projects Enables sales growth by building more intimate customer relationships, giving us insight to customers’ needs, with a service that is not easily replicated 2 85 PolyOne Corporation 16 W H Y I N V E S T I N P O L Y O N E ? Tax adjustments include the net tax expense/benefit from one-time income tax items, the set-up or reversal of uncertain tax position reserves and deferred income tax valuation allowance adjustments.

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POLYONE CORPORATION 69 The SARs granted during 2011 and 2010 were valued using the Black-Scholes method as the awards only have time-based vesting requirements. I have reviewed this Annual Report on Form 10-K of PolyOne Corporation; 2. I have reviewed this Annual Report on Form 10-K of PolyOne Corporation; 2.

It stands up to sunscreen, hand sanitizer and isopropyl alcohol while enduring UV light. About PolyOne PolyOne Corporation

PolyOne Investor Presentation PolyOne Investor Presentation March 2018 POLYONE CORPORATION 2  In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. In addition, operating income before special items and adjusted EPS are components of various PolyOne annual and long-term employee incentive plans Tax adjustments include the net tax expense/benefit from one-time income tax items, the set-up or reversal of uncertain tax position reserves and deferred income tax valuation allowance adjustments.

Available in translucent and black formulations, this new overmolding TPE grade can be custom colored to meet aesthetic and branding needs. About PolyOne Photo: ©iStockphoto.com/PolyOne)

a) Tax adjustments include the net tax expense (benefit) from one-time income tax items and deferred income tax valuation allowance adjustments. Attachment 2 2

High chemical resistance - UV and Weather Resistant Good UV and weather resistance for permanent outdoors use. ECCOH XL 8148 solutions bring UV resistance and fast processing to photovoltaic cable

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