Commercially available in all regions, the product portfolio consists of four overmolding grades compatible with rigid polypropylene and one suited for overmolding onto ABS. About PolyOne To access PolyOne’s news library online, please go to www.polyone.com/news

PolyOne is exhibiting at Lightfair 2018 in booth # 1578. About PolyOne PHOTO CAPTION: Resilience™ LS High Reflectance PVC, one of two new grades from PolyOne, offers higher light reflectance and other performance benefits than typical metalized PC

Investor Day POLYONE I N V E S T O R P R E S E N T A T I O N N O V E M B E R 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. USE OF NON-GAAP MEASURES PolyOne Corporation 3 • This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. In addition, operating income before special items and adjusted EPS are components of various PolyOne annual and long-term employee incentive plans

STAN-TONE PEP-108524 PUMPKIN STAN-TONE HCC-108523 RED Safety Data Sheets

STAN-TONE HCC-TERRA STAN-TONE HCC-BUFF Safety Data Sheets

STAN-TONE MB-29717 YELLOW STAN-TONE MB-29718 GREEN Safety Data Sheets

STAN-TONE HCC- RED STAN-TONE HCC- RED 48 Safety Data Sheets

STAN-TONE 90PC04 BLACK STAN-TONE MB-31969 GREEN Safety Data Sheets

STAN-TONE HCC- BLUE STAN-TONE HCC-35624 WHITE Safety Data Sheets

STAN-TONE HCC- STM-GRAY STAN-TONE HCC- STM-BEIGE Safety Data Sheets