Mevopur™ formulations for PCR well plates prevent 'cross-talk' and minimize phosphorescence with optimally dispersed TiO2, while balancing melt flow and physical properties, and ensuring quality through ISO 13485:2016 certification.

Trilliant™ HC Conductive Formulation offered consistent electrical conductivity and provided high flow grade to conductive pipette tips

Trilliant™ HC Conductive Formulation offered consistent electrical conductivity and provided high flow grade to conductive pipette tips

Mevopur™ formulations for PCR well plates prevent 'cross-talk' and minimize phosphorescence with optimally dispersed TiO2, while balancing melt flow and physical properties, and ensuring quality through ISO 13485:2016 certification.

Mevopur™ formulations for PCR well plates prevent 'cross-talk' and minimize phosphorescence with optimally dispersed TiO2, while balancing melt flow and physical properties, and ensuring quality through ISO 13485:2016 certification.

Examples include: • Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy • Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation and reduce carbon footprint • Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility Avient employs approximately 8,800 associates and is certified ACC Responsible Care®, a founding member of the Alliance to End Plastic Waste and certified Great Place to Work®. Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks, including recessionary conditions; the current and potential future impact of the COVID-19 pandemic on our business, results of operations, financial position or cash flows; changes in polymer consumption growth rates and laws and regulations regarding plastics in jurisdictions where we conduct business; fluctuations in raw material prices, quality and supply, and in energy prices and supply; production outages or material costs associated with scheduled or unscheduled maintenance programs; unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; an inability to raise or sustain prices for products or services; our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; information systems failures and cyberattacks; amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; any material adverse changes in the Dyneema Business; our ability to achieve the strategic and other objectives relating to the Dyneema Acquisition, and the possible sale of the Distribution business segment; and other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation and any recessionary conditions. The non-GAAP financial measures include: adjusted EPS and free cash flow.

GLOBAL VACUUM CLEANER BRAND B A T T E R Y P A C K & C O V E R • Flame retardance to conform to UL 94 V-0 at 0.75 mm • Easy to process and high-flow material to meet thin wall part design • Offered a UL 94 V-0 certified material to fulfill specific customer requests • Achieved excellent impact strength and good flexural modulus for added durability • Delivered an injection moldable PP with high flow to meet thin-wall demands Maxxam™ FR Flame Retardant Polyolefin Formulations KEY REQUIREMENTS WHY AVIENT?

Examples include: • Dyneema®, the world’s strongest fiber™, enables unmatched levels of performance and protection for end-use applications, including ballistic personal protection, marine and sustainable infrastructure and outdoor sports • Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy • Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation and reduce carbon footprint • Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility Avient is certified ACC Responsible Care®, a founding member of the Alliance to End Plastic Waste and certified Great Place to Work®. Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; changes in laws and regulations regarding plastics in jurisdictions where we conduct business; fluctuations in raw material prices, quality and supply, and in energy prices and supply; production outages or material costs associated with scheduled or unscheduled maintenance programs; unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; our ability to achieve strategic objectives and successfully integrate acquisitions, including Avient Protective Materials; an inability to raise or sustain prices for products or services; our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; information systems failures and cyberattacks; amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; and other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation and any recessionary conditions. 2) Tax adjustments include the net tax impact from non-recurring income tax items, adjustments to uncertain tax position reserves and changes to valuation allowances. 10 Attachment 4 Avient Corporation Condensed Consolidated Balance Sheets (In millions) (Unaudited) March 31, 2023 December 31, 2022 ASSETS Current assets: Cash and cash equivalents $ 582.7 $ 641.1 Accounts receivable, net 484.4 440.6 Inventories, net 371.9 372.7 Other current assets 125.3 115.3 Total current assets 1,564.3 1,569.7 Property, net 1,045.7 1,049.2 Goodwill 1,689.7 1,671.9 Intangible assets, net 1,601.7 1,597.6 Other non-current assets 209.8 196.6 Total assets $ 6,111.2 $ 6,085.0 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term debt $ 2.2 $ 2.2 Accounts payable 448.1 454.4 Accrued expenses and other current liabilities 386.9 412.8 Total current liabilities 837.2 869.4 Non-current liabilities: Long-term debt 2,177.7 2,176.7 Pension and other post-retirement benefits 66.2 67.2 Deferred income taxes 332.5 342.5 Other non-current liabilities 329.0 276.4 Total non-current liabilities 2,905.4 2,862.8 SHAREHOLDERS' EQUITY Avient shareholders’ equity 2,349.8 2,334.5 Noncontrolling interest 18.8 18.3 Total equity 2,368.6 2,352.8 Total liabilities and equity $ 6,111.2 $ 6,085.0 11 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Three Months Ended March 31, 2023 2022 Operating Activities Net income $ 20.4 $ 84.5 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 48.7 35.7 Accelerated depreciation 1.8 2.1 Share-based compensation expense 3.2 3.2 Changes in assets and liabilities, net of the effect of acquisitions: Increase in accounts receivable (40.2) (118.8) Decrease (increase) in inventories 3.8 (15.1) (Decrease) increase in accounts payable (9.9) 90.5 Accrued expenses and other assets and liabilities, net (50.0) (63.2) Net cash (used) provided by operating activities (22.2) 18.9 Investing activities Capital expenditures (20.3) (13.3) Net proceeds from divestiture 7.3 — Net cash used by investing activities (13.0) (13.3) Financing activities Purchase of common shares for treasury — (15.8) Cash dividends paid (22.5) (21.7) Repayment of long-term debt (0.8) (2.4) Other financing (2.3) (3.9) Net cash used by financing activities (25.6) (43.8) Effect of exchange rate changes on cash 2.4 (0.4) Decrease in cash and cash equivalents (58.4) (38.6) Cash and cash equivalents at beginning of year 641.1 601.2 Cash and cash equivalents at end of period $ 582.7 $ 562.6 12 Attachment 6 Avient Corporation Business Segment Operations (Unaudited) (In millions) Operating income and earnings before interest, taxes, depreciation and amortization (EBITDA) at the segment level does not include: special items as defined in Attachment 3; corporate general and administration costs that are not allocated to segments; intersegment sales and profit eliminations; share-based compensation costs; and certain other items that are not included in the measure of segment profit and loss that is reported to and reviewed by the chief operating decision maker.

Condensed Consolidated Statements of Cash Flows (Unaudited) Free cash flow is calculated as follows: Free cash flow

Barrier technologies that preserve the shelf-life and quality of food, beverages, medicine and other perishable goods through high-performance materials that require less plastic to Work®, and is a founding member of the Alliance to End Plastic Waste.