Activity: Design and Manufacture of Specialty Engineered Thermoplastics Activity: Design and Manufacture of Colorants and Compounds for Fluoropolymer and High Temperature Polymers. Garibaldi 2405 Lomas de Zamora, Buenos Aires 1832 Argentina Activity: Manufacture of Colour and Additive Concentrates, Thermoplastic Resins and Specialty Compounds Activity: Design and Manufacture of Colorants and Additives Concentrates and Specialty Compounds for Thermo Plastic Resin. Box 5882 Riyadh, Kingdom 11432 Saudi Arabia Activity: Design & Manufacture of Color, Additive Concentrate & Specialty Compounds Activity: Design and Manufacture of Color and Additive Concentrates, Thermoplastic Resins and Specialty Compounds Page 9 of 10 ABS Quality Evaluations Avient Corporation RC14001®:2015 Certificate Of Conformance ANNEX At Below Facilities: Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation.

Activity: Design and Manufacture of Specialty Engineered Thermoplastics Activity: Design and Manufacture of Colorants and Compounds for Fluoropolymer and High Temperature Polymers. Garibaldi 2405 Lomas de Zamora, Buenos Aires 1832 Argentina Activity: Manufacture of Colour and Additive Concentrates, Thermoplastic Resins and Specialty Compounds Activity: Design and Manufacture of Colorants and Additives Concentrates and Specialty Compounds for Thermo Plastic Resin. Box 5882 Riyadh, Kingdom 11432 Saudi Arabia Activity: Design & Manufacture of Color, Additive Concentrate & Specialty Compounds Activity: Design and Manufacture of Color and Additive Concentrates, Thermoplastic Resins and Specialty Compounds Page 9 of 10 ABS Quality Evaluations Avient Corporation ISO 14001:2015 Certificate Of Conformance ANNEX At Below Facilities: Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation.

Ethics - Code of Conduct Avient has its own ethics policy – The Avient Code of Conduct which establishes a clear set of ethical and behavioral standards for business conduct by all Avient associates. Annex 2 – ISO 22000 certifications Avient Colorants Spain S.A, Avient Colorants Santa Clara Coatitla Mexico, and PolyOne Spain SLU have enhanced systems to support food packaging applications with an external ISO 22000 certification adding the following core processes: Change All changes concerning any product produced under ISO 22000 conditions are evaluated to determine whether there will be any impact the Supplier approval and supplier evaluation specification or in the quality of the product. . HACCP Avient Colorants Spain S.A., Avient Colorants Toluca Mexico, and PolyOne Spain SLU follow the structure of HACCP (Hazard Analysis and Critical Control Point) as a system for assessing compliance to food safety standards.

Prior to joining PolyOne, Mr. The mailing envelope and letter must contain a clear notation indicating that the enclosed letter is either a “Shareholder-Board of Directors Communication” or an “Interested Party-Board of Directors Communication,” as appropriate. PolyOne provides Mr.

PolyOne Corporation Investor Day 2012 PolyOne Investor Presentation KeyBanc 2013 Capital Markets’ Basic Materials & Packaging Conference September 10th, 2013 • 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. In addition, operating income before special items and adjusted EPS are components of various PolyOne annual and long-term employee incentive plans. • A reconciliation of each non-GAAP financial measure with the most directly comparable GAAP financial measure is attached to this presentation which is posted on our website at www.polyone.com. Net debt $ 638.8 Adjusted EBITDA Q3 2012 Q4 2012 Q1 2013 Q2 2013 Total PolyOne Income before income taxes $ 30.6 $ (1.1) $ 15.7 $ 62.9 $ 108.1 PolyOne Interest expense, net 12.4 13.7 15.6 16.6 58.3 PolyOne Depreciation and amortization 17.0 15.5 19.0 25.8 77.3 PolyOne Special items in EBITDA 8.3 26.5 27.7 (5.2) 57.3 PolyOne Adjusted EBITDA 68.3 54.6 78.0 100.1 301.0 Pro forma Spartech EBITDA 16.8 14.7 11.2 - 42.7 Pro forma EBITDA $ 85.1 $ 69.3 $ 89.2 $ 100.1 $ 343.7 PolyOne Investor Presentation�KeyBanc 2013 Capital Markets’ �Basic Materials & Packaging Conference��September 10th, 2013� Forward – Looking Statements Use of Non GAAP Measures Strategy and Execution Drive Results Four Pillar Strategy PolyOne�At A Glance Mix Shift Highlights Specialty Transformation Proof of Performance & 2015 Goals Innovation Drives Earnings Growth We are Experts in Polymer Science and Formulation Positioned for Strong Growth First Half 2013 Financial Highlights Debt Maturities & Liquidity Summary – 6/30/13 Use of Cash Why Invest In PolyOne?

The mailing envelope and letter must contain a clear notation indicating that the enclosed letter is either a “Shareholder-Board of Directors Communication” or an “Interested Party-Board of Directors Communication,” as appropriate. Since our transformation began in 2006, our earnings per share has grown at a compounded annual growth rate of 36%. PolyOne and Ms.

EXP 15502100103 CLEAR XV3897 CLEAR 1859 XV3784 CLEAR 1732

147888-00 EXPHC4275 CLEAR 9885 147888-04 EXPHC4275 CLEAR 9885 147888-02 EXPHC4275 CLEAR 9885

DB4249 CLEAR LIGHT BLUE DB4256 CLEAR XRAY OPAQUE DB4256 CLEAR BLUE XRAY OPAQUE