KEY CHARACTERISTICS • Excellent wear resistance • Reduced friction, heat build-up, noise and vibration • Improved processability and surface finish on parts • Lower power requirements and low maintenance • Design flexibility • Reduced weight APPLICATION BULLETIN SOLUTIONS AVAILABLE LubriOne™ Portfolio PA66, PA6 and Polyketone formulations with 10%–30% glass fiber reinforcement available Lubricants & Performance Lubricant Color Performance LubriOne NN PTFE Natural Shears and creates a PTFE film transferred to the matting surface.

DRYING CONDITIONS ENGLISH (°F) METRIC (°C) Temperature 180°F 80°C Duration 2–4 Hours Moisture Level Allowable 0.05%–0.20% PROCESSING Screw Speed Typical screw speeds are recommended Injection Velocity 1–3 inch per second Back Pressure Lower back pressure is recommended Pack Pressure 60–80% of max injection pressure Hold Pressure 40–60% of max injection pressure Cool Time 10–30 seconds (depends on part geometry and dimensional stability) Residence Time Longer residence times are not advised 1.844.4AVIENT www.avient.com Copyright © 2021, Avient Corporation.

APPLICATION BULLETIN FILTER GRADE FILTRATION EFFICIENCY EPA 10/E10 85% EPA 11/E11 95% HEPA H12 99.5% HEPA H13 99.97% HEPA H14 99.975% HEPA H15 99.9975% HEPA H16 99.99975% ULPA H17 99.9999% EPA: efficient particulate air filtration HEPA: high efficiency particulate air filter ULPA: ultra-low penetration air filter www.avient.com Copyright © 2021, Avient Corporation.

On its manufacturing lines, the transition to Colorant Chromatics fluoropolymer color concentrates helped slash its scrap rate from 10% to less than 5%.

PDI) on extruded profiles 2 ASTM D-638 3 ASTM 256 4 ASTM D-648 66 psi, unannealed, 0.125" 5 Savings depends on profile size and production volume Acrylite is a registered trademark of Evonik Performance Materials Lens Performance Resilience™ LS Frost PVC Acrylite® Satinice Frost PMMA Light Transmission1 at 0.060" (1.5mm) 83% Low Diffusion 78% Medium Diffusion 75% High Diffusion 81% Low Diffusion Diffusion Half Power Angle (DLD) 26° Low Diffusion 41° Medium Diffusion 58° High Diffusion 26° Low Diffusion Tensile Strength2 Tensile Modulus2 Tensile Elongation (break)2 7,360 psi 400,000 psi 20% 7,330 psi 330,000 psi 43% Flammability (UL 94) V-0 @ 1.5mm 5VA @ 2.0mm HB @ 1.6mm Notched Izod Impact (73°F)3 2.3 ft-lb/in 0.6 ft-lb/in Heat Deflection Temperature4 157°F/69°C 182°F/83°C UV Stability Good Excellent Chemical Resistance Excellent Good Typical Lens Profile Cost 10–15% Savings5 Baseline 1.866.POLYONE www.polyone.com Copyright © 2018, PolyOne Corporation.

In 2023, 10% of the Company's annual incentive bonus was tied to specific sustainability targets aligned with our sustainability goals. Rathbun 2/08/2021 — — — — — 5,417 225,185 2/14/2022 — — — — — 4,794 199,287 2/17/2023 — — — — — 7,036 292,487 2/4/2015 2,500 — — 38.27 2/4/2025 — — 2/10/2016 10,400 — — 24.98 2/10/2026 — — 2/15/2017 10,100 — — 34.10 2/15/2027 — — 2/14/2018 10,400 — — 41.89 2/14/2028 — — 2/11/2019 17,150 — — 31.54 2/11/2029 — — 2/10/2020 19,200 — — 31.48 2/10/2030 — — 2/08/2021 13,433 6,717 — 42.27 2/08/2031 — — 2/14/2022 — — 16,000 52.64 2/14/2032 — — 2/17/2023 — — 23,250 42.93 2/17/2033 — — L.K. Beggs, the stock awards include RSUs that were granted on February 10, 2020 and vested on February 10, 2023.

You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. 4 Non-GAAP Financial Measures The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures. 2) Tax adjustments include the net tax benefit/(expense) from one-time income tax items, the set-up or reversal of uncertain tax position reserves and deferred income tax valuation allowance adjustments. 8 Attachment 4 Avient Corporation Condensed Consolidated Balance Sheets (In millions) (Unaudited) March 31, 2022 December 31, 2021 ASSETS Current assets: Cash and cash equivalents $ 562.6 $ 601.2 Accounts receivable, net 757.9 642.3 Inventories, net 475.4 461.1 Other current assets 131.0 122.4 Total current assets 1,926.9 1,827.0 Property, net 661.9 676.1 Goodwill 1,283.4 1,286.4 Intangible assets, net 904.1 925.2 Operating lease assets, net 67.1 74.1 Other non-current assets 200.3 208.4 Total assets $ 5,043.7 $ 4,997.2 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 607.5 $ 8.6 Accounts payable 642.3 553.9 Current operating lease obligations 21.7 24.2 Accrued expenses and other current liabilities 284.8 353.9 Total current liabilities 1,556.3 940.6 Non-current liabilities: Long-term debt 1,250.2 1,850.3 Pension and other post-retirement benefits 98.5 100.0 Deferred income taxes 99.4 100.6 Non-current operating lease obligations 45.9 50.1 Other non-current liabilities 164.1 165.1 Total non-current liabilities 1,658.1 2,266.1 SHAREHOLDERS' EQUITY Avient shareholders’ equity 1,813.2 1,774.7 Noncontrolling interest 16.1 15.8 Total equity 1,829.3 1,790.5 Total liabilities and equity $ 5,043.7 $ 4,997.2 9 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Three Months Ended March 31, 2022 2021 Operating Activities Net income $ 84.5 $ 79.7 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 35.7 36.6 Accelerated depreciation and amortization 2.1 0.5 Share-based compensation expense 3.2 2.7 Changes in assets and liabilities, net of the effect of acquisitions: Increase in accounts receivable (118.8) (137.6) Increase in inventories (15.1) (35.1) Increase in accounts payable 90.5 67.3 Decrease in pension and other post-retirement benefits (4.0) (7.1) Decrease in accrued expenses and other assets and liabilities, net (59.2) (3.4) Net cash provided by operating activities 18.9 3.6 Investing activities Capital expenditures (13.3) (16.5) Other investing activities — (2.0) Net cash used by investing activities (13.3) (18.5) Financing activities Purchase of common shares for treasury (15.8) (4.2) Cash dividends paid (21.7) (19.5) Repayment of long-term debt (2.4) (2.3) Payments of withholding tax on share awards (3.9) (3.1) Net cash used by financing activities (43.8) (29.1) Effect of exchange rate changes on cash (0.4) (11.0) Decrease in cash and cash equivalents (38.6) (55.0) Cash and cash equivalents at beginning of year 601.2 649.5 Cash and cash equivalents at end of period $ 562.6 $ 594.5 10 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.

Table 1: Novel Non-Drying Overmold TPE Shore A Hardness(10 second delay) 57 Specific Gravity(g/cm3) 1.05 Color Natural 300% Modulus(MPa) 2.87 Tensile Strength(MPa) 3.24 Elongation at Break (%) 400 90° Deg., Peel ASA (N/mm) 2.72 90° Deg., Peel SAN (N/mm) 2.72 90° Deg. Furthermore, the material has outstanding adhesion to Ultramid B3G6 (glass reinforced polyamide 6) as demonstrated in Figure 10 and 11. OM6240 adhesion to Ultramid B3ZG6 1.7 1.91.9 0.0 0.5 1.0 1.5 2.0 250°C 260°C 270°C Melt temperature A vg . p ee l, N /m m Injection speed: 64 mm/sec Figure 10: Versfalex OM 6240 adhesion values to polyamide Ultrmid B3ZG6 OM6240 adhesion to Ultramid B3ZG6 1.7 1.91.9 0.0 0.5 1.0 1.5 2.0 250°C 260°C 270°C Melt temperature A vg . p ee l, N /m m Injection speed: 64 mm/sec Figure 11: Versaflex OM 6258 adhesion values to polyamide Ultrmid B3ZG6 GLS Corporation, 833 Ridgeview Drive, McHenry, IL 60050

In the event of a force majeure, Seller has no obligation to purchase material for resale to Buyer, and no liability for cost to cover incurred by Buyer. 10. Except in the case of a force majeure, if not satisfied with Seller’s determination, Buyer as its sole remedy shall have a right to terminate this contract without further obligation upon: (i) 10 days written notice; and (ii) payment for all Product received to date. 12. En caso de Fuerza Mayor, el Vendedor no tiene la obligación de comprar el material para su reventa al Comprador, y no se hace responsable por el costo incurrido a cubrir por el Comprador. 10.

The refinancing and debt reduction will result in $10 million of annual interest expense savings. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. 6 Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations Avient Corporation +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G. 2) Tax adjustments include the net tax impact from non-recurring income tax items, adjustments to uncertain tax position reserves and the establishment, reversal or changes to valuation allowances. 10 Attachment 4 Avient Corporation Condensed Consolidated Balance Sheets (In millions) (Unaudited) September 30, 2023 December 31, 2022 ASSETS Current assets: Cash and cash equivalents $ 439.6 $ 641.1 Accounts receivable, net 436.9 440.6 Inventories, net 349.6 372.7 Other current assets 138.2 115.3 Total current assets 1,364.3 1,569.7 Property, net 978.2 1,049.2 Goodwill 1,681.3 1,671.9 Intangible assets, net 1,563.0 1,597.6 Other non-current assets 202.9 196.6 Total assets $ 5,789.7 $ 6,085.0 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 9.5 $ 2.2 Accounts payable 389.5 454.4 Accrued expenses and other current liabilities 328.1 412.8 Total current liabilities 727.1 869.4 Non-current liabilities: Long-term debt 2,070.8 2,176.7 Pension and other post-retirement benefits 65.1 67.2 Deferred income taxes 293.2 342.5 Other non-current liabilities 337.6 276.4 Total non-current liabilities 2,766.7 2,862.8 SHAREHOLDERS' EQUITY Avient shareholders’ equity 2,276.9 2,334.5 Noncontrolling interest 19.0 18.3 Total equity 2,295.9 2,352.8 Total liabilities and equity $ 5,789.7 $ 6,085.0 11 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Nine Months Ended September 30, 2023 2022 Operating Activities Net income $ 47.8 $ 158.5 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 142.6 110.3 Accelerated depreciation 1.9 4.0 Share-based compensation expense 9.7 9.5 Changes in assets and liabilities, net of the effect of acquisitions: Increase in accounts receivable (5.7) (66.5) Decrease (increase) in inventories 16.5 (12.5) (Decrease) increase in accounts payable (59.1) 43.5 Taxes paid on gain on sale of business (104.1) — Accrued expenses and other assets and liabilities, net (2.5) (22.9) Net cash provided by operating activities 47.1 223.9 Investing activities Capital expenditures (75.0) (55.1) Business acquisitions, net of cash acquired — (1,426.1) Settlement of foreign exchange derivatives — 93.3 Net proceeds from divestiture 7.3 — Other investing activities 2.3 — Net cash used by investing activities (65.4) (1,387.9) Financing activities Debt proceeds — 1,300.0 Purchase of common shares for treasury — (36.4) Cash dividends paid (67.6) (65.2) Repayment of long-term debt (103.8) (6.8) Debt financing costs (2.3) (49.3) Other financing (2.3) (4.2) Net cash (used) provided by financing activities (176.0) 1,138.1 Effect of exchange rate changes on cash (7.2) (30.9) Decrease in cash and cash equivalents (201.5) (56.8) Cash and cash equivalents at beginning of year 641.1 601.2 Cash and cash equivalents at end of period $ 439.6 $ 544.4 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.