TPEs: The Basics PET Water Bottles can be recycled in a closed loop The goal of a circular economy is to minimize waste and make the most of available resources to create a world that is restorative and regenerative by design.

Purchase price multiple rapidly declining on strength of business and synergy capture 12 $133 $201 2019PF 2022E 12 Clariant Color EBITDA Growth Purchase Price Multiple 10.8x 7.0x 6.4x 2019PF 2021 2022E w/ Full Synergies 11.9% 16.3% 2019PF 2022E EBITDA Margins CLARIANT COLOR: TRANSFORMATIONAL ACQUISITION (1) Financial information is pro forma to include a full year of Clariant Color business SUNBELT PVC Resins DSS 20 Acquisitions $4.8B Investment $2.7B of Annual Revenue 5 Divestments $2.3B Proceeds TPE PP&S HISTORIC SPECIALIZATION THROUGH M&A 13 Distribution DSM Protective BOLT-ON ACQUISITION HISTORY 14 Commercial Resources Operating Income Operating Margins 259 363 $40 $139 Established Acquisitions (> 7 years) + 40% + 248% + 1300 bps I N V E S T T O G R O W SPECIALTY TRANSFORMATION T O D A Y 46% 67% 86% 0% 60% 80% 2005 2010 2019 2021 2022 PF % o f A d ju st ed E B IT D A • Commodity JVs • Distribution • Performance Products & Solutions • Specialty Businesses (1) Adjusted EBITDA is EBITDA excluding corporate costs and special items (2) Pro forma for the acquisition of Dyneema® and divestiture of Distribution (1 ) (2) 15 Building & 43% 14% Telecom. 2% 2006 2022 Pro Forma 21% Building & Telecom.

More TPE For Beginners Thermoplastic elastomers (TPEs) are used to create durable products that we use everyday. Learn how to design with TPEs and the advantages of using this eco-friendly material.

Where You Can Find Additional Information Our principal executive offices are located at 33587 Walker Road, Avon Lake, Ohio 44012, and our telephone number is (440) 930-1000. On January 29, 2016, the Company completed the acquisition of certain technologies and assets from Kraton Performance Polymers, Inc (Kraton), to expand its global footprint and expertise in the thermoplastic elastomer (TPE) innovation and design, for $72.0 million in cash. Indefinite-lived intangible assets primarily consist of the GLS and ColorMatrix trade names.

A-1 i MESSAGE FROM OUR CEO April 1, 2016 Dear Fellow Shareholder: You are cordially invited to attend the PolyOne Corporation Annual Meeting of Shareholders (the “Annual Meeting”), which will be held at 9:00 a.m. on Thursday, May 12, 2016, at PolyOne Corporation’s corporate headquarters located at PolyOne Center, 33587 Walker Road, Avon Lake, Ohio 44012. ii NOTICE OF 2016 ANNUAL MEETING OF SHAREHOLDERS Thursday, May 12, 2016 9:00 a.m. Our telephone number is (440) 930-1000.

i NOTICE OF 2024 ANNUAL MEETING OF SHAREHOLDERS Thursday, May 16, 2024 9:00 a.m. Please carefully review the proxy materials for the Annual Meeting, which will be held virtually via live webcast on Thursday, May 16, 2024 at 9:00 a.m. The Annual Meeting webcast will begin promptly at 9:00 a.m.

i Notice of 2025 Annual Meeting of Shareholders Wednesday, May 14, 2025 9:00 a.m. Please carefully review the proxy materials for the Annual Meeting, which will be held virtually via live webcast on Wednesday, May 14, 2025 at 9:00 a.m. The Annual Meeting webcast will begin promptly at 9:00 a.m.

From modules to air vent flaps, automotive HVAC systems around the world use our TPEs and

Versaflex™ TPE Alloys

TPE for non-slip surfaces and mats