X LB 31173-1-1 X LB 31173-1-2 Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1)

WHITE 1 ECCOH WC 186/1 NC POL4241 EVM-1-16

DW1-PEARL/ABS-1 TRANS BLUE T255-1-2 MSDS X155-058-090-1

PROMOTIONAL GREEN MB 2019 DOE2-1 PROMOTIONAL GREEN MB 2019 DOE3-1 PROMOTIONAL GREEN MB 2019 DOE1-1

CC RED-F 92 1% UV HERITAGE RED-F 1% CC BLUE-F 2000 1% PE

VERDE 3242C-1 LM PP Q728-1-3 GREY 2 1S BLUE 1

FERC)1. Swanson, Director, Investor Relations, PolyOne Corporation, +1 440-930-1018, eric.swanson@avient.com, Media Contact: Kyle G. Rose, Vice President, Corporate Communications, PolyOne Corporation, +1 440-930-3162, kyle.rose@avient.com

June 1, 2018 Investor Relations Contact: Joe Di Salvo, Vice President, Investor Relations, PolyOne Corporation, +1 440-930-1921, giuseppe.diSalvo@PolyOne.com; Media Contact: Kyle G. Rose, Vice President, Corporate Communications, PolyOne Corporation, +1 440-930-3162, kyle.rose@avient.com

Southern States saw an opportunity to provide a unique solution to its utility customers, who were under pressure to comply with new physical security mandates from the Federal Energy Regulatory Commission (FERC)1. 1 http://www.ferc.gov/media/news-releases/2014/2014-4/11-20-14-E-4.asp#.Vuwyv3bmqUk EDITORS: For a high-resolution image, please click here: Southern States To access PolyOne’s news library online, please go to www.avient.com/news.  Media contact Michelle Maniscalco Marketing Communications Manager, North America PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com 

Swanson Director, Investor Relations PolyOne Corporation +1 440-930-1018 eric.swanson@avient.com Rose Vice President, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com Trade Media Contact: Michelle Maniscalco Marketing Communications Manager, North America PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com