With 65 percent of our OI generated from specialty solutions—compared to just 2 percent in 2005—it truly exemplifies just how far we’ve come in our transformation from the volume-driven, commodity-focused company of the past. S&P POL S&P MID CAP CHEMICALS S&P 500 1.7% 1.1% 1.4% (2012) 5.5% 2.6% 6.0% 5.0% N/A 14.7% 12.1% 7.3% 7.7% 6.1% 65% 11.3% 37% 12%–16% 12%–16% 8%–10% 9%–12% 6%–7.5% 65%–75% 15% Double Digit Expansion Operating Income % Specialty: • Global Color, Additives & Inks • Global Specialty Engineered Materials • Designed Structures & Solutions Performance Products & Solutions Distribution Specialty Platform % of Operating Income ROIC* Adjusted EPS Growth 2015 TARGET (Established 2012) 2014 (Where we are) 2006 (Where we were) *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period ΔDefined as the average thirteen months of accounts receivable, plus inventory, less accounts payable divided by full year sales 5 Annual Report 2014 United States Securities and Exchange Commission Washington, DC 20549 FORM 10-K Í ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2014 ‘ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Following are our contributions to the RSP: (In millions) 2014 2013 2012 Retirement savings match $ 9.7 $ 9.8 $ 7.6 Retirement benefit contribution 4.0 4.0 3.8 Total contributions $ 13.7 $ 13.8 $ 11.4 POLYONE CORPORATION 65 Note 13 — COMMITMENTS AND CONTINGENCIES Environmental — We or our subsidiaries have been notified by federal and state environmental agencies and by private parties that we may be a potentially responsible party (PRP) in connection with the investigation and remediation of certain environmental sites.

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+902012 2011 2010 2009 2008 2007 0 10 20 30 40 50 60 % PERCENTAGE SPECIALTY PLATFORM OPERATING INCOME % OF TOTAL* 41+33+35 +70+79+932012 2011 2010 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 $ DOLLARS 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 rate 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. The obligations of PolyOne under the term loan are secured by a first lien on certain existing and future property and assets of PolyOne and certain of its U.S. subsidiaries, a 100% pledge of the voting capital stock of PolyOne’s U.S. subsidiaries, a 65% pledge of the voting capital stock of PolyOne’s direct foreign subsidiaries (subject to certain exceptions) and a second lien on U.S. accounts receivable and inventory. Spartech et. al. also alleges that PolyOne, Merger Sub, and Merger POLYONE CORPORATION 65 LLC have aided and abetted the directors of Spartech in breaching their fiduciary duties.

Richardson – 65%; and Messrs. Crist’s annual incentive opportunity was increased from 50% to 55% to reflect his new responsibilities To attract and help retain talent Fixed base of cash compensation Weighting 16% - CEO 33% - CFO 39% - Other NEOs Base Salary Drives the achievement of key business results on an annual basis Performance- based and not guaranteed Weighting 19% - CEO 21% - CFO 21% - Other NEOs Annual Incentive Directly ties the interests of NEOs to our shareholders Helps retain key talent and a majority is performance- based and not guaranteed Weighting 65% - CEO 46% - CFO 40% - Other NEOs Long- Term Incentive COMPENSATION DISCUSSION AND ANALYSIS as Senior Vice President, President of CAI.

Tianjin, China 65. Management has assessed the effectiveness of Avient’s internal control over financial reporting as of December 31, 2022 and has prepared Management’s Annual Report On Internal Control Over Financial Reporting contained on page 65 of this Annual Report, which concludes that as of December 31, 2022, Avient’s internal control over financial reporting was effective and that no material weaknesses were identified. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may 65 AVIENT CORPORATION become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. 66 AVIENT CORPORATION ITEM 9B.

Cota, Colombia 65. PRINCIPAL ACCOUNTANT FEES AND SERVICES Information regarding fees paid to and services provided by Avient’s independent registered public accounting firm and the pre-approval policies and procedures of the audit committee is incorporated by reference to the information contained in the 2024 Proxy Statement. 65 AVIENT CORPORATION PART IV ITEM 15.

In addition to our involvement as an ACC Responsible Care® company, we are members of Operation Clean Sweep®, where we train and audit our operations to prevent plastic pellet loss into the environment. LLC, as joint-lead arrangers and joint-book managers, Jefferies Finance LLC, KeyBanc Capital Markets Inc. and SunTrust Robinson Humphrey, Inc., as co-managers, and several other commercial lending institutions that are parties thereto (incorporated by reference to Exhibit 10.6 to the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2015, SEC File No. 1-16091) 10.3 Amendment Agreement No. 1 to the Credit Agreement, dated as of June 15, 2016, among the Company, certain subsidiaries of the Company, Citibank, N.A., as administrative agent, and the additional lender party thereto (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30. 2016, SEC File No. 16091) 10.4 Amendment Agreement No. 2, dated August 3, 2016, by and among PolyOne Corporation, the subsidiaries of PolyOne Corporation party thereto, Citibank, N.A, as administrative agent, and the lenders party thereto (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on August 5, 2016, SEC File No. 1-16091) 10.5 Amendment Agreement No. 3, dated January 24, 2017, by and among PolyOne Corporation, the subsidiaries of PolyOne Corporation party thereto, Citibank, N.A., as administrative agent, and the lenders party thereto (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2017, SEC File No. 1-16091) 10.6 Amendment Agreement No. 4, dated August 15, 2017, by and among PolyOne Corporation, the subsidiaries of PolyOne Corporation party thereto, Citibank, N.A., as administrative agent, and the lenders party thereto (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2017, SEC File No. 1-16091) 10.7 Amendment Agreement No. 5, dated April 11, 2018, by and among PolyOne Corporation, the subsidiaries of PolyOne Corporation party thereto, Citibank, N.A., as administrative agent, and the lenders party thereto (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2018, SEC File No. 1-16091) 10.8 Amendment Agreement No. 6, dated November 9, 2018, by and among PolyOne Corporation, the subsidiaries of PolyOne Corporation party thereto, Citibank, N.A, as administrative agent, and the lenders party thereto (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on November 13, 2018, SEC File No. 1-16091) 10.9+ Form of 2011 Award Agreement under the 2010 Equity and Performance Incentive Plan (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2011, SEC File No. 1-16091) 10.10+ Amended and Restated PolyOne Corporation 2010 Equity and Performance Incentive Plan (incorporated by reference to Appendix B to the Company’s definitive proxy statement on Schedule 14A filed on April 3, 2015, SEC File No. 1-16091) 10.11+ Amended and Restated PolyOne Senior Executive Annual Incentive Plan (incorporated by reference to Appendix C to the Company’s definitive proxy statement on Schedule 14A filed on April 3, 2015, SEC File No. 1-16091) 10.12+ PolyOne 2017 Equity and Incentive Compensation Plan (incorporated by reference to Appendix B to the Company's definitive proxy statement on Schedule 14A filed on March 31, 2017, SEC File No. 1-16091) 10.13+ Form of Grant of Stock-Settled Stock Appreciation Rights under the 2010 Long-Term Incentive Plan (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2010, SEC File No. 1-16091) 10.14+ Amended and Restated Deferred Compensation Plan for Non-Employee Directors (as amended and restated effective May 20, 2014) (incorporated by reference to Exhibit 10.7 of the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2014, SEC File No. 1-16091) 10.15+ Form of Management Continuity Agreement for Executive Officers prior to 2011 (incorporated by reference to Exhibit 10.13 to the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2007, SEC File No. 1-16091) POLYONE CORPORATION 65 Exhibit No.

Country/Region Scope 2, location- based Scope 2, market- based Purchased and consumed electricity, heat, Purchased and consumed low-carbon electricity, heat, steam or Avient CDP Climate Change Questionnaire 2021 Tuesday, August 3, 2021 65 (metric tons CO2e) (metric tons CO2e) steam or cooling (MWh) cooling accounted for in Scope 2 market-based approach (MWh) Belgium 1,348 1,195 6,704 335 Brazil 444 444 4,448 0 Canada 334 334 2,530 0 China 21,484 21,484 34,853 0 Czechia 185 36 373 312 Finland 131 346 1,117 0 France 658 516 11,948 0 Germany 8,802 9,812 21,936 5,834 Hungary 644 725 2,537 0 India 5,362 5,362 7,135 0 Italy 6,204 1,063 20,146 17,864 Luxembourg 35 100 222 0 Mexico 1,711 1,711 3,750 0 Netherlands 250 332 598 0 Peru 36 36 182 0 Poland 2,499 2,857 3,523 0 Saudi Arabia 8,214 8,214 15,865 0 Singapore 1,161 1,161 2,984 0 Spain 6,992 9,236 26,952 0 Thailand 4,369 4,369 9,016 0 United Kingdom of Great Britain and Northern Ireland 350 531 1,527 0 United States of America 51,565 5,458 121,433 100,004 Turkey 3,317 3,317 7,119 0 Guatemala 252 252 660 0 Pakistan 1,218 1,218 3,101 0 Argentina 289 212 897 240 South Africa 830 830 927 0 Indonesia 1,111 1,111 1,451 0 Chile 46 46 114 0 Sweden 25 0 1,883 1,883 New Zealand 225 225 2,073 0 Avient CDP Climate Change Questionnaire 2021 Tuesday, August 3, 2021 66 Viet Nam 338 338 743 0 Colombia 375 375 2,338 0 Ireland 350 524 1,057 0 Malaysia 461 461 697 0 Taiwan, Greater China 3,348 3,348 5,991 0 C7.6 (C7.6) Indicate which gross global Scope 2 emissions breakdowns you are able to provide.

The obligations of PolyOne under the term loan are secured by a first lien on certain existing and future property and assets of PolyOne and certain of its U.S. subsidiaries, a 100% pledge of the voting capital stock of PolyOne’s U.S. subsidiaries, a 65% pledge of the voting capital stock of PolyOne’s direct foreign subsidiaries (subject to certain exceptions), and a second lien on U.S. accounts receivable and inventory. P O L Y O N E C O R P O R A T I O N 65 (a)(3) Exhibits.

Richardson – 65%; and Messrs. The SARs are also subject generally to time-based vesting in one-third increments on each of the firff st three anniversaries of the grant date. 65 EXECUTIVE COMPENSATION (13) Represents stock-settled SARs granted on February 10, 2016 that vest in increments upon the attainment of stock price hurdles (based on PolyOne’s closing stock price and sustained for thirty consecutive trading days) forff our common shares as follows: one-third at $27.48; one-third at $28.73; and one-third at $29.98.

Suzhou, China 65. The fair value of derivative financial instruments recognized in the Condensed Consolidated Balance Sheets as of December 31, 2021 and 2020 is as follows: (In millions) Balance Sheet Location 2021 2020 Assets Cross Currency Swaps (Net Investment Hedge) Other non-current assets $ 31.7 $ — Liabilities Cross Currency Swaps (Net Investment Hedge) Other non-current liabilities $ — $ 41.1 Interest Rate Swap (Fair Value Hedge) Other current liabilities $ 3.1 $ — Interest Rate Swap (Fair Value Hedge) Other non-current liabilities $ — $ 7.3 65 AVIENT CORPORATION ITEM 9.