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Supplier warrants that the Goods provided do not contain any chemicals included on Schedule 1, Schedule 2, or Schedule 3 of the Chemical Weapons Convention and Chemical Weapons Convention Regulations and do not contain so-called Conflict Minerals nor result from processes utilizing Conflict Minerals. Chemical Control Regulations With regard to chemicals supplied under the Purchase Order, Supplier herewith confirms that it is fully aware of the applicable chemical control regulations. Supplier shall report any irregularity with respect to safety, health and environment and security.

Avient CDP Climate Change Questionnaire 2022 Friday, July 29, 2022 4 Row 1 Bulk organic chemicals Bulk inorganic chemicals Other chemicals Other, please specify Polymer Compounding C0.8 (C0.8) Does your organization have an ISIN code or another unique identifier (e.g., Ticker, CUSIP, etc.)? Purchased goods and services Evaluation status Relevant, calculated Emissions in reporting year (metric tons CO2e) Avient CDP Climate Change Questionnaire 2022 Friday, July 29, 2022 64 1,810,579 Emissions calculation methodology Average data method Percentage of emissions calculated using data obtained from suppliers or value chain partners 0 Please explain Pounds of purchased polymers broken out by polymer type as well as carbon black, titanium dioxide, and calcium carbonate data were obtained. Polymers 45 Purchased polymers data, broken out by polymer type, was obtained in weight.

Technical Data Sheets Safety Data Sheets Safety Data Sheets

Technical Data Sheets Safety Data Sheets Safety Data Sheets

PR 202 ADVANCED DISPERSIONS SPECIALTY COLORANTS Spectrophotometric Fact Sheet EXPLANATION OF SPECTROPHOTOMETRIC DATA Avient certifies our colorants based on CIELAB spectrophotometric color difference data for each lot of product. While there is a variety of color difference formulations in use, the CIELAB is most commonly used in the plastics and polymer industry because it offers relatively good visual correlation over a wide range of color space. USING THIS CHART This color selection chart is a tool to assist in selecting the proper colorants for specific applications

PolyOne Corporation Investor Day 2012 PolyOne Investor Presentation Credit Suisse 26th Annual Chemical and Ag Science Conference September 17th, 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. 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�Credit Suisse 26th Annual Chemical and Ag Science Conference��September 17th, 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? Credit Suisse September 2013 Investor Presentation non-GAAP v2.pdf Reconciliation to Condensed Consolidated Balance Sheets

Technical Data Sheets Safety Data Sheets Safety Data Sheets

Technical Data Sheets Safety Data Sheets Substance Safety Summaries

PolyOne Corporation Page 1 PolyOne Investor Presentation Gabelli Specialty Chemicals Conference March 2015 PolyOne Corporation Page 2 Forward-Looking Statements  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. Schedule I Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data) Below is a reconciliation of non-GAAP financial measures to the most directly comparable measures calculated and presented in accordance with U.S. Gabelli Conf - POL IR Presentation ��PolyOne Investor Presentation�Gabelli Specialty Chemicals Conference�March 2015�� Forward-Looking Statements Use of Non-GAAP Measures PolyOne Commodity to Specialty Transformation PolyOne�At A Glance Mix Shift Highlights Specialty Transformation Confirmation of Our Strategy Strategy and Execution Drive Results Proof of Performance & 2015 Goals Continuing Earnings Growth Innovation Drives Earnings Growth Megatrends Aligned with Key End Markets Debt Maturities & Pension Funding – 12/31/14 Free Cash Flow and Strong Balance Sheet �Fund Investment / Shareholder Return PolyOne Core Values Why Invest In PolyOne?