PolyOne’s innovative portfolio includes: OnCap™ Anti-Rodent & Anti-Termite Technology: non-hazardous, non-toxic and eco-conscious masterbatches that increase product life by preventing damage from rodents and termites About PolyOne

Slide 1 PolyOne Corporation Page 1 PolyOne Investor Presentation Goldman Sachs 2015 US Emerging/ SMID Cap Growth Conference November 2015 PolyOne Corporation Page 2 Forward-Looking Statements  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. PolyOne Corporation Page 3 Use of Non-GAAP Measures  This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Special items include charges related to specific strategic initiatives or financial restructuring such as: consolidation of operations; debt extinguishment costs; employee separation costs resulting from personnel reduction programs, plant phase-in costs, executive separation agreements; asset impairments; mark-to-market adjustments associated with actuarial gains and losses on pension and other post-retirement benefit plans; environmental remediation costs, fines, penalties, remediation costs and related insurance recoveries related to facilities no longer owned or closed in prior years; gains and losses on the divestiture of operating businesses, joint ventures and equity investments; gains and losses on facility or property sales or disposals; results of litigation, fines or penalties, where such litigation (or action relating to the fines or penalties) arose prior to the commencement of the performance period; one-time, non-recurring items; and the effect of changes in accounting principles or other such laws or provisions affecting reported results. (2) 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 valuations allowance adjustments.

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produces both solid and liquid colorant technologies and operates two facilities located in PolyOne PolyOne

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In this study, a variety of plastic substrates (30 unique polymer compounds), including poly(acrylonitrile-co-butadiene-co-styrene), poly(butylene terephthalate), poly(etherimide), various thermoplastic elastomers (TPEs), poly(carbonates), and poly(amides), were screened for susceptibility to microbial attack using American Society for Testing and Materials (ASTM) G21 (fungi susceptibility), Japanese Industrial Standard (JIS) Z2801, and modified ASTM E1428-15a (bacterial suscep- tibility) test standards. The only exception to these results was the high-performance engineering resins poly- etherimide (PEI) and poly(sulfone), which demonstrated ZANDER ET AL. 3 0% stain coverage following a post-wash of the inoculated agar slurry (see Figure 1; Table S1). Among commercially available biocidal additives, ZPT and 2-butyl-1,2-benzisothiazolin-3-one (BBIT) were considered for use to reduce the microbial susceptibility of TPE compounds.

MANNHEIM, Germany – PolyOne Corporation (NYSE: POL), a premier global provider of specialized polymer materials, services and solutions, is exhibiting its specialty portfolio of technologies to automotive designers and engineers this week at the 2014 VDI Plastics in Automotive Engineering conference.  PolyOne welcomes visitors to its stand, 83A.  About PolyOne

CLEVELAND – PolyOne today announced development of reSound™ NF reinforced materials, based on an eco-conscious, natural fiber-filled technology. About PolyOne To access PolyOne’s news library online, please go to www.polyone.com/news

PolyOne Corporation PolyOne Corporation Tax adjustments include the net tax expense (benefit) from one-time income tax items and deferred income tax valuations allowance adjustments.

Jellison Retired Vice President, Chief Financial Officff er of Stryker Corporation, one of the world’s leading medical technology companies. PolyOne also benefitff s froff m h rer experience and expertise in technology and varied endd markets. He is a proven leader, with deep and varied experience inn technology and successful business operations.