Avient has transitioned our Material Safety Data Sheets (MSDSs) to Safety Data Sheets (SDSs) for our manufactured products to meet the requirements of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS), and CLP classification in Europe. Safety Data Sheets Avient has transitioned our Material Safety Data Sheets (MSDSs) to Safety Data Sheets (SDSs) for our manufactured products to meet the requirements of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS), and CLP classification in Europe.

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?

Technical Data Sheets Safety Data Sheets Safety Data Sheets

Technical Data Sheets Safety Data Sheets Substance Safety Summaries

Technical Data Sheets Safety Data Sheets Substance Safety Summaries

Our Hammerhead FR composite panels consist of specially formulated continuous fiber reinforced thermoplastic (CFRTP) sheets bonded to a thermoplastic foam core. These panels can withstand moisture, chemicals, and other tough conditions while remaining significantly lighter than wood, gypsum, or steel. To get material samples and engineering data on Hammerhead FR flame retardant composite panels, let’s start a conversation.

Row 1 Bulk organic chemicals Bulk inorganic chemicals Other chemicals Other, please specify Polymer Compounding C1. Purchased goods and services Avient CDP Climate Change Questionnaire 2021 Tuesday, August 3, 2021 56 Evaluation status Relevant, calculated Metric tonnes CO2e 1,042,871 Emissions calculation methodology Pounds of purchased polymers broken out by polymer type as well as carbon black data were obtained. Polymers 48 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

Technical Data Sheets Safety Data Sheets Safety Data Sheets