If you are a foreign person or the U.S. branch of a foreign bank that has elected to be treated as a U.S. person, do not use Form W-9. Enter the appropriate code in the space in line 4. 1—An organization exempt from tax under section 501(a), any IRA, or a custodial account under section 403(b)(7) if the account satisfies the requirements of section 401(f)(2) 2—The United States or any of its agencies or instrumentalities 3—A state, the District of Columbia, a U.S. commonwealth or possession, or any of their political subdivisions or instrumentalities 4—A foreign government or any of its political subdivisions, agencies, or instrumentalities 5—A corporation 6—A dealer in securities or commodities required to register in the United States, the District of Columbia, or a U.S. commonwealth or possession 7—A futures commission merchant registered with the Commodity Futures Trading Commission 8—A real estate investment trust 9—An entity registered at all times during the tax year under the Investment Company Act of 1940 10—A common trust fund operated by a bank under section 584(a) 11—A financial institution 12—A middleman known in the investment community as a nominee or custodian 13—A trust exempt from tax under section 664 or described in section 4947 Form W-9 (Rev. 10-2018) Page 4 The following chart shows types of payments that may be exempt from backup withholding. Also, the IRS does not request personal detailed information through email or ask taxpayers for the PIN numbers, passwords, or similar secret access information for their credit card, bank, or other financial accounts.

To quantify risk and reduce it over time, Avient monitors several key performance indicators on a regular basis: Total Recordable Incident Rate (TRIR), Lost Time Injury/Illness Rate(LTIR), and Injuries of High Consequence (IOHC).

Product description, key characteristics of low haze technology, markets and applications Technology description, key characteristics, markets and applications Product description, key characteristics of low haze technology, markets and applications (Chinese language version)

Product description, key characteristics of low haze technology, markets and applications Technology description, key characteristics, markets and applications Product description, key characteristics of low haze technology, markets and applications (Chinese language version)

Product description, key characteristics of low haze technology, markets and applications Technology description, key characteristics, markets and applications Product description, key characteristics of low haze technology, markets and applications (Chinese language version)

Product description, key characteristics of low haze technology, markets and applications Technology description, key characteristics, markets and applications Product description, key characteristics of low haze technology, markets and applications (Chinese language version)

Technology description, key characteristics, markets and applications Learn about the key characteristics and regulatory support Mevopur Amber Colorants offer in pharmaceutical packaging Learn about the key characteristics and regulatory support Mevopur™ Special Effect Colorants offer for healthcare devices and pharmaceutical packaging

PolyOne Corporation Investor Day 2012 PolyOne Investor Presentation Bank of America Merrill Lynch 2013 US Basic Materials Conference December 11, 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. Average Debt Q3 2012 Q4 2012 Q1 2013 Q2 2013 Q3 2013 Average PolyOne Debt $ 705.2 $ 706.9 $ 1,055.5 $ 1,031.2 $ 987.7 $ 897.3 Average Equity Q3 2012 Q4 2012 Q1 2013 Q2 2013 Q3 2013 Average PolyOne shareholders’ equity $ 629.3 $ 629.1 $ 871.8 $ 993.9 $ 996.6 $ 824.1 Reconciliation to Condensed Consolidated Balance Sheets YTD 2013 Short-term debt and current portion of long-term debt $ 9.9 Long-term debt 977.8 Less cash and cash equivalents (322.8) Net debt $ 664.9 Adjusted EBITDA Q4 2012 Q1 2013 Q2 2013 Q3 2013 Total PolyOne Income before income taxes $ (1.1) $ 15.7 $ 62.9 $ 38.8 $ 116.3 PolyOne Interest expense, net 13.7 15.6 16.6 16.0 61.9 PolyOne Depreciation and amortization 15.5 19.0 25.8 30.3 90.6 PolyOne Special items in EBITDA 26.5 27.7 (5.2) 11.2 60.2 PolyOne Adjusted EBITDA 54.6 78.0 100.1 96.3 329.0 Pro forma Spartech EBITDA 14.7 11.2 - - 25.9 Pro forma EBITDA $ 69.3 $ 89.2 $ 100.1 $ 96.3 $ 354.9 PolyOne Investor Presentation��Bank of America Merrill Lynch�2013 US Basic Materials Conference�December 11, 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 Q3 2013 Financial Highlights Debt Maturities & Liquidity Summary – 9/30/13 Use of Cash Why Invest In PolyOne?

Product description, value solution, key characteristics, markets and applications of Glasforms™ CRTM™ Continuous Resin Transfer Molding Sandwich Panels Highlights of some key benefits of advanced composites and trends shaping the market

Lightweighting, density management and consistency are key drivers with extrusion and injection molding applications. Product description, key characteristics, markets and applications of ColorMatrix™ Excelite™ IM