March 1, 2018 The amended Facility further enhances our liquidity position and flexibility for future growth, while reducing our short-term borrowing costs." Rose, Vice President, Corporate Communications, PolyOne Corporation, +1 440-930-3162, kyle.rose@avient.com

OnColor NIR Sortable Colorants Product Bulletin_CN11.30-1 OnColor™ 近红外可检测着色剂 应用于包装回收的近红外可检测黑色和深色着色剂 主要特性 产品公告 应用于回收黑色和深色包装的OnColor™近红外 可检测着色剂可提升深色聚合物分类和回收的准 确度。

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Together we can unlock the powerful potential of a future envisioned by you... and shared by us all.

While we remain laser focused and in aggressive pursuit of our 2015 performance targets, we’re also planning for a future driven by specialty innovation, collaboration and growth, leading to strong double digit adjusted EPS expansion for many years to come. Swanson Director, Investor Relations PolyOne Corporation +1 440-930-1018 eric.swanson@avient.com Media Contact: Kyle Rose Vice President, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com

We expect this technology to become a platform of the future for companies whose products demand strength and design flexibility.”  We searched for the perfect home as we looked to the future of our businesses – in a global company that shared our passion for customer service.   Media contact Michelle Maniscalco Marketing Communications Manager, North America PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com

Attachment 1 Special items (1) 1)

June 1, 2018 June 1, 2018 Rose, Vice President, Corporate Communications, PolyOne Corporation, +1 440-930-3162, kyle.rose@avient.com