VALUE BENEFITS OF USING THE FLEXCART MICRO SYSTEM The FlexCart Micro metering system is market leading: • Robust and dependable system control • Reliable yield (typically 95%+) and sustainable packaging • Capability of data networking and remote internet support • Small footprint & LN standard recyclable delivery packaging FLEXCART™ MICRO LIQUID METERING SYSTEM Combined with sustainable delivery packaging ATTRIBUTE FLEXCART MICRO Footprint (LxW cm) 60 x 35 Controller options 3000 5000 Typical max. throughput (kg/hr) 250 Max. metering rate (cc/s) 10 Continuous use No Transfer pumps N/A Metering pumps PC/Peri Interchangeable cassette Yes Note: PC = Progressing Cavity Pump Peri = Peristatic Pump PLANETPAK™ CONTAINERS AND LN PACKAGING OPTIONS The FlexCart suite of metering systems is designed to work with the standardized PolyOne range of packaging typically achieving 99% reliable yield on continuous operating systems, while at the same time also achieving a sustainable packaging format in terms of full recyclability.

The company noted that fourth quarter 2023 GAAP EPS includes $0.06 of special items (see Attachment 3) and $0.16 of intangible amortization expense (see Attachment 1). The company also noted that it finished the year with cash flow from operations of $202 million; excluding $104 million of taxes paid on the sale of the Distribution business, cash flow from operations was $306 million. 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 (Unaudited) (In millions) Year Ended December 31, 2023 2022 ASSETS Current assets: Cash and cash equivalents $ 545.8 $ 641.1 Accounts receivable, net 399.9 440.6 Inventories, net 347.0 372.7 Other current assets 114.9 115.3 Total current assets 1,407.6 1,569.7 Property, net 1,028.9 1,049.2 Goodwill 1,719.3 1,671.9 Intangible assets, net 1,590.8 1,597.6 Operating lease assets, net 65.3 60.4 Other non-current assets 156.6 136.2 Total assets $ 5,968.5 $ 6,085.0 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 9.5 $ 2.2 Accounts payable 432.3 454.4 Current operating lease obligations 16.6 17.0 Accrued expenses and other current liabilities 315.2 395.8 Total current liabilities 773.6 869.4 Non-current liabilities: Long-term debt 2,070.5 2,176.7 Pension and other post-retirement benefits 67.2 67.2 Deferred income taxes 281.6 342.5 Non-current operating lease obligations 43.2 40.9 Other non-current liabilities 394.4 235.5 Total non-current liabilities 2,856.9 2,862.8 SHAREHOLDERS' EQUITY Avient shareholders’ equity 2,319.2 2,334.5 Noncontrolling interest 18.8 18.3 Total equity 2,338.0 2,352.8 Total liabilities and equity $ 5,968.5 $ 6,085.0 11 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Year Ended December 31, 2023 2022 Operating activities Net income $ 76.2 $ 703.4 Adjustments to reconcile net income to net cash provided by operating activities: Gain on sale of business, net of tax expense — (550.1) Depreciation and amortization 186.9 157.6 Accelerated depreciation 1.9 5.5 Amortization of inventory step-up — 34.4 Deferred income tax (benefit) expense (61.3) 0.5 Share-based compensation expense 13.2 13.2 Changes in assets and liabilities, net of the effect of acquisitions: Decrease in accounts receivable 38.6 32.6 Decrease in inventories 24.3 14.0 (Decrease) increase in accounts payable (22.2) 10.7 (Decrease) increase in pension and other post-retirement benefits (15.1) 7.1 Taxes paid on gain on sale of business (104.1) (2.8) Accrued expenses and other assets and liabilities, net 63.2 (27.7) Net cash provided by operating activities 201.6 398.4 Investing activities Capital expenditures (119.4) (105.5) Business acquisitions, net of cash acquired — (1,426.1) Settlement of foreign exchange derivatives — 93.3 Net proceeds from divestiture 7.3 928.2 Proceeds from plant closures 7.6 6.1 Other investing activities 10.3 — Net cash used by investing activities (94.2) (504.0) Financing activities Debt offering proceeds — 1,300.0 Purchase of common shares for treasury — (36.4) Cash dividends paid (90.2) (86.8) Repayment of long-term debt (105.8) (956.8) Payments on withholding tax on share awards (3.4) (4.3) Debt financing costs (2.3) (49.3) Net cash (used) provided by financing activities (201.7) 166.4 Effect of exchange rate changes on cash (1.0) (20.9) (Decrease) increase in cash and cash equivalents (95.3) 39.9 Cash and cash equivalents at beginning of year 641.1 601.2 Cash and cash equivalents at end of year $ 545.8 $ 641.1 12 Attachment 6 Avient Corporation Business Segment Operations (Unaudited) (In millions) Operating income 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.

44 in. span, ASTM 7249 Note: Additional core materials available.

POPULAR BELT & HOSE REINFORCEMENT PRODUCTS Product ID Coating Base Fiber Nominal Break Strength Nominal Yield Geometry Diameter Notes K1000T FIBER-LINE® 43 LBs (19 KGs)  12987 FT/LB 8725 M/KG Round/Flat .374 mm Twisted Kevlar with heat-activated K2160T 100 LBs (45 KGs) 5847 FT/LB 3928 M/KG Round/Flat .558 mm Twisted Kevlar with heat-activated K1500 1x2x3 400 LBs (180 KGs) 1366 FT/LB 917 M/KG Round 1.22 mm Twisted Kevlar cord with heat-activated V1500 2x3 Vectran 550 LBS (250 KGs) 1373 FT/LB 921 M/KG Round 1.305 mm Twisted Vectran cord with heat-activated LOCATIONS Headquarters, R&D, Manufacturing FIBER-LINE® LLC 3050 Campus Drive Hatfield, PA 19440 +1 215.997.9181 fiber@fiber-line.com Manufacturing Operations FIBER-LINE® LLC 280 Performance Drive SE Hickory, NC 28602 +1 828.326.8700 fiber@fiber-line.com EMEA & Asia Pacific Operations FIBER-LINE® INTERNATIONAL B.V.

Toxicity for Reproduction PROPERTY DETAIL Physical State Solid Form Powder/ Beads Color Black Odor Odorless Melting Point 3550°C Boiling Point 500–600°C Partition Coefficient: N-octanol/Water Not Applicable Bulk Density 1.7-1.8 g/cm3 (20°C) Water Solubility Insoluble Self-ignition Temperature >284°F Flammability >45 s Explosiveness 50 g/m3 PHYSICAL/CHEMICAL PROPERTIES EXPOSURE HUMAN HEALTH SAFETY ASSESSMENT Human Health Carbon Black, when generally used as noted above is bound into a matrix.

Product ID Coating Base Fiber Break Strength Yield Geometry Nominal Diameter Notes K1000 1x3 (HT) FIBER-LINE® 125 LBs (55 KGs) 3930 FT/LB (2639 M/KG) Round/Flat .762 mm Highly twisted cord lubricated for easy under armor ripping K400 1x3 FIBER-LINE® 65 LBs (29 KGs) 10989 FT/LB (7384 M/KG) Round/Flat .435 mm Lubricated for fast & easy ripping K1500 1x3 FIBER-LINE® 200 LBs (91 KGs) 2500 FT/LB (1679 M/KG) Round/Flat .905 mm Lubricated for fast & easy ripping P3000 (HT) FIBER-LINE® Repelcoat™ PET Polyester 60 LBs (27 KGs) 3935 FT/LB (2645 M/KG) Round .695 mm Water repellency coating V1420T FIBER-LINE® Blockcoat™ VectranTM 90 LBs (40 KGs) 9010 FT/LB (6050 M/KG) Round/Flat .456 mm Vectran utilized to eliminate outgassing.

KEY CHARACTERISTICS • Manufactured at four ISO 13485 certified manufacturing sites, providing global consistency and increased security of supply • Documented change control beyond CAS number, reducing risk of change • Non-phthalate and formulated without animal-derived substances • Available as pre-colored formulation or concentrate and for use in different polymers REGULATORY SUPPORT • Raw materials tested to: - ISO 10993-1 and USP biological evaluation - European Pharmacopeia 3.1.3/3.1.5 (polyolefin) - USP (polyethylene) - ICH Q3D elemental impurities • Registered Drug Master File (Type III) and/or Device Master File • Food contact established with FDA/EU** APPLICATION BULLETIN * Design note: Effect colors require careful consideration of part design and polymer flow paths to minimize visible flow lines.

Footprint (LxW cm) 86 x 80 Controller options 6000 Typical max. throughput (kg/hr) 120 Max. metering rate (cc/s) 1.25 Continuous use Yes Transfer pumps PC Metering pumps PC Interchangeable cassette Yes Note: PC = Progressing Cavity Pump Peri = Peristatic Pump PLANETPAK™ CONTAINERS The FlexCart system is designed to work with the standardized PlanetPak container range of packaging, achieving 99% reliable yield whilst at the same time achieving a sustainable packaging format in terms of full recyclability.

VALUE BENEFITS OF USING THE FLEXCART MINI SYSTEM FlexCart units & PlanetPak containers create a market leading metering system: • Robust and dependable system control • Reliable yield (typically 99% using a PlanetPak) and sustainable packaging • Capability of data networking and remote internet support • Simplified changeover with interchangeable cassettes FLEXCART™ MINI LIQUID METERING SYSTEM Combined with the PlanetPak™ delivery packaging Note: PC = Progressing Cavity Pump Peri = Peristatic Pump ATTRIBUTE FLEXCART MINI Footprint (LxW cm) 98 x 38 Controller options 3000 5000 Typical max. throughput (kg/hr) 625 Max. metering rate (cc/s) 10 Continuous use Yes Transfer pumps Peri Metering pumps PC/Peri Interchangeable cassette Yes PLANETPAK™ CONTAINERS The FlexCart system is designed to work with the standardized PlanetPak container range of packaging, typically achieving 99% reliable yield while also achieving a sustainable packaging format that is fully recyclable.

Unless otherwise noted, the information contained within is applicable to all Avient-North America and ColorMatrix Europe facilities. TABLE OF CONTENTS PAGE 1.0 QUALITY POLICY……………………………………………………………….. 4 2.0 AVIENT BUSINESS & QMS ALIGNMENT………………………………………. 5 3.0 CUSTOMER FOCUS PROCESS………………………………………………… 6 4.0 SCOPE OF STANDARD QUALITY RESPONSE…………………………….. 7 - 8 5.0 COMPANY INFORMATION…………………………………………………… 9 6.0 IT SECURITY………………………………………………………………….. 10 7.0 ENIVIRONMENTAL HEALTH, SAFETY & SECURITY………………………. 10 8.0 TECHNOLOGY…………………………………………………………………. 11 9.0 REGULATORY & STATUTORY REQUIREMENTS…………………………….. 11 10.0 QUALITY MANAGEMENT SYSTEM……………………………………………… 12 10.1 GENERAL…………………………………………………………………… 13 10.2 FACILITY & MAINTENANCE…………………………………………… 14 10.3 CONTROL OF MONITORING & MEASURING DEVICES……………… 14 10.4 MANUFACTORING, PRODUCTION & PROCESS CONTROLS…………….. 15 10.5 NONCONFORMING MATERIALS……………………………………… 15 10.6 MATERIALS, STORAGE, HANDLING & TRACABILITY……………. 16 10.7 PACKAGING, SHIPPING & DISTRIBUTION…………………………… 16 10.8 QUALITY CONTROL TESTING………………………………………….. 17 11.0 CONTINUOUS IMPROVEMENT…………………………………………… ........ 17 11.1 FIGURE B. For Avient Distribution Inquiries: PODQuality@polyone.com For ColorMatrix EMEA: regulatory.CMEU@polyone.com https://www.avient.com/resources/technical-data-sheets http://www.avient.com/resources/safety-data-sheets https://www.polyonedistribution.com/safety-data-sheets mailto:MSDSREQUESTColorsVinylEM@polyone.com mailto:regulatoryservices@polyone.com mailto:fdm@polyone.com https://www.avient.com/sites/default/files/resources/PolyOne_Conflict_Minerals_Policy_0.pdf https://www.avient.com/sites/default/files/resources/PolyOne_Conflict_Minerals_Policy_0.pdf mailto:regulatoryservices@polyone.com Approved Corporate : Template/Form Document #: DOC-01879 Revision: 8 Document Owners: Brian Hoar Effective Date: May 13, 2022 Title: QF-02 Quality Standard Response Page 12 of 19 Only the electronic version of this document in ETQ is the controlled version of the document.