Patterson Chairman, President and CEO 2016 was another year of accomplishments for PolyOne. Rathbun 44 Senior Vice President, Mergers & Acquisitions João José San Martin Neto 56 Senior Vice President, Chief Human Resource Officer John V. At the time, neither PolyOne nor The Geon Company ever owned or operated the 55POLYONE CORPORATION 56 facility.

Patterson, presidente do Conselho, presidente e diretor executivo (CEO) 2 Sumário Nossa visão e estratégia Visão Na Avient, criamos soluções de materiais especializados e sustentáveis que transformam os desafios dos clientes em oportunidades, criando novos produtos para um mundo melhor..

I’m truly honored to serve all of our stakeholders as Chairman, President and CEO, and I remain fully committed to the ongoing success and sustainability of PolyOne. Patterson Chairman, President and CEO 20%Commercial Resources Increase SINCE 2014 PERFORMANCE 2017 SHAREHOLDER RETURN 1 year +36% N E A R LY SHARE PRICE APPRECIATION 30% ANNOUNCED INCREASE IN DIVIDEND 2.0M SHARES REPURCHASED United States Securities and Exchange Commission Washington, DC 20549 FORM 10-K ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2017 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Nikrant 56 Senior Vice President, President of Specialty Engineered Materials Joel R.

It is a privilege to serve all of our many stakeholders as Chairman, President and CEO of this great company, and I look forward to leading our ongoing journey to become a high-performing, world-class sustainable organization. Patterson Chairman, President and CEO 2.50 2.25 2.00 1.75 1.50 1.25 1.00 0.75 0.50 0.25 ADJUSTED EARNINGS PER SHARE* U .S . In addition, with 56% and 54% of our respective Color, Additives and Inks and Specialty Engineered Materials segments' sales outside the United States, we experience volatility related to foreign currency fluctuations, most significantly the Euro.

Newlin Chairman, President and Chief Executive Officer March 11, 2013 25+38+38 +73+74+95 19+15+9 +56+72+85 Operating Income % Specialty PP&S Distribution Specialty Platform Operating Income % of Total ROIC** (after-tax) 2007 3.2% 6.1% 3.0% 20% 7% 2012 9.1% 9.0% 6.4% 45% 11% 2015 TARGET 12%–16% 9%–12% 6%–7.5% 65%–75% 15% 2012 2011 2010 2009 2008 2007 0 20 40 60 80 100 120 $ mIllIOnS SPECIAlTY PlATFORm OPERATInG InCOmE 40+68+70 +86+84+90201220112010 2009 2008 2007 0 10 20 30 40 50 60 % PERCEnTAGE SPECIAlTY PlATFORm OPERATInG InCOmE % OF TOTAl* 41+33+35 +70+79+93201220112010 2009 2008 2007 0 1 2 3 4 5 6 7 8 % PERCEnTAGE ADJUSTED RETURn On SAlES^ POlYOnE STOCK (POl) PERFORmAnCE VERSUS S&P 2012 2011 2010 2009 2008 2007 0 .20 .40 .60 .80 1.00 1.20 1.40 $ DOll ARS ADJUSTED EARnInGS PER SHARE† 0 .2 .4 .6 .8 1 1.2 *Operating income excludes corporate operating income SAFETY InJURY InCIDEnCE RATE˚ 2012 2011 2010 2009 2008 2007 12.31.09 6.30.10 12.31.10 6.30.11 12.31.11 6.30.12 12.31.12 DATE 200 150 100 50 0 % P E R C E n TA G E POl S&P 600 CHEmICAlS S&P 500 InJURY InCIDEnCE R ATE 91+91+71 +54+47+45 ˚Number of injuries per 100 full time associates^Operating income excludes special items and equity income from SunBelt **ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period †EPS excluding special items and equity income from SunBelt POL 173% S&P 600 Chemicals 34% S&P 500 28% 5 ANNUAL REPORT 2012 Proof of Performance Our values, strategy, commitment and execution are clearly evident in our recent financial and operational performance. On December 21, 2011, we retired our accounts receivable facility that was set to mature in June 2012 and replaced it with a five-year senior secured revolving credit facility, which includes up to $300.0 million in revolving loans, subject to a borrowing base with advances against U.S. and 56 POLYONE CORPORATION Canadian accounts receivable and inventory.

Patterson, President and CEO 2015 was yet another year of significant accomplishments at PolyOne as we continued to execute our proven four-pillar strategy. In addition to these actions, PolyOne incurred severance costs related to former Spartech executives and other employees, as well as fixed asset- related charges and other ongoing costs associated with restructuring actions that were underway prior to PolyOne’s acquisition of Spartech. 56 POLYONE CORPORATION Since the date of the Spartech acquisition, the Company has incurred $123.4 million of charges in connection with the 2013 Spartech actions.

The following is a summary of the assumptions related to the grants issued during 2011, 2010 and 2009: 2011 2010 2009 Expected volatility (weighted-average) 56% 58% 49.7% Expected dividends 0.0% — 1.17% — — Expected term (in years) 6.0 4.5 4.5 — 5.6 Risk-free rate 2.70% — 2.86% 2.26% 3.25% Value of SARs granted $6.72 — $8.12 $3.90 $0.61 — $0.68 P O L Y O N E C O R P O R A T I O N 54 A summary of SAR activity for 2011 is presented below: (Shares in thousands, dollars in millions, except per share data) Stock Appreciation Rights Shares Weighted-Average Exercise Price Per Share Weighted-Average Remaining Contractual Term Aggregate Intrinsic Value Outstanding as of January 1, 2011 4,193 $ 5.84 4.23 years $28.3 Granted 539 $14.81 Exercised (958) $ 5.62 Forfeited or expired (40) $ 9.34 Outstanding as of December 31, 2011 3,734 $ 7.15 4.24 years $18.1 Vested and exercisable as of December 31, 2011 2,258 $ 6.30 2.91 years $11.9 The weighted-average grant date fair value of SARs granted during 2011, 2010 and 2009 was $8.12, $3.90, and $0.65, respectively. P O L Y O N E C O R P O R A T I O N 56 On December 21, 2011, the Company completed the acquisition of all of the outstanding equity interests of ColorMatrix for $486.1 million, net of cash acquired, on a debt-free basis.