PolyOne PolyOne PolyOne's

PolyOne PolyOne PolyOne's

PolyOne PolyOne PolyOne's

PolyOne PolyOne PolyOne's

PolyOne Investor Presentation November 2017 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 Senior management believes these measures are useful to investors because they allow for comparison to PolyOne's performance in prior periods without the effect of items that, by their nature, tend to obscure PolyOne's operating results due to the potential variability across periods based on timing, frequency and magnitude.

About PolyOne To access PolyOne’s news library online, please go to www.avient.com/news. Sandy Wagner Marketing Communications Manager PolyOne GLS Thermoplastic Elastomers +1 815-385-8500 sandy.wagner@avient.com

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KEY CHARACTERISTICS • Manufactured at four ISO 13485 certified sites, providing global consistency and increased security of supply • Documented change control beyond CAS number level, reducing risk of change • Non-phthalate and formulated without animal-derived substances • Different tones of amber available on request —more or less red or yellow and/or lighter or darker • Also available in liquid form REGULATORY SUPPORT • Pre-tested raw materials: - ISO 10993-1 and USP parts (Class VI) - European Pharmacopeia, monograph 3.1.15, USP and elemental analysis as per ICH Q3D - USP criteria appearance of solution, color • Registered Drug Master File (Type III) by the FDA • Food contact compliance established with FDA/EU* • YBB00102002-2015 (oral liquid pharmaceutical PET bottles) compliance support APPLICATION BULLETIN * FDA/EU compliance information available upon request Healthcare use limitations apply—see below.

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PolyOne Corporation Page 4 Agenda 1:00 Introduction Robert M. Patterson PolyOne Corporation Page 5 Introduction Robert M. Patterson President and Chief Executive Officer PolyOne Corporation Page 6 PolyOne Corporation Page 7 Robert M.