PolyOne Corporation P O LY O N E A N N U A L R E P O R T 2 0 17 A N N U A L R E P O R T 2 0 1 7 C R E AT I N G A WO R L D - C L A S S , S U S TA I N A B L E O R G A N I Z AT I O N PolyOne Corporation (NYSE: POL), with 2017 revenues of $3.2 billion, is a premier provider of specialized polymer materials, services and solutions. Joel R. Abernathy P O LY O N E A N N U A L R E P O R T 2 0 17 POLYONE.COM ANNUAL REPORT 2017 OUR VISION OUR VALUES OUR STRATEGY LETTER TO OUR SHAREHOLDERS FORM 10-K PART I CAUTIONARY NOTE ON FORWARD-LOOKING STATEMENTS ITEM 1.

Automotive OEM AUTOMOTIVE OEM B U S B A R C A R R I E R F O R E V B A T T E R Y • Non-halogen solution • Flame performance to UL 94 V-0 @ 1.6 mm, GWFI 960°C @ 2mm • Excellent mechanical properties • Easy to process • Heat stabilized and high flow properties • Provide a non-halogenated solution with increased performance • Supported our customer throughout the project with design, regulatory and technical expertise • Helped to achieve the rigid requirements of EV battery applications Maxxam NHFR Non-Halogen Flame Retardant Polyolefin Formulation KEY REQUIREMENTS WHY AVIENT?

Investor Relations Contact: Eric R.

Investor Relations Contact: Eric R.

Investor Relations Contact: Eric R.

Investor Relations Contact: Eric R.

Investor Relations Contact: Eric R.

Investor Relations Contact: Eric R.

Investor Relations Contact: Eric R.

Investor Relations Contact: Eric R.