Tax services include tax compliance, tax advice and tax planning. The number of SARs withheld to cover taxes and the exercise price, and the net number of shares acquired as a result of SAR exercises during 2023 is as follows: Mr. The number of shares withheld to cover taxes is as follows: Ms.

FIBER-LINE™ PERFORMANCE ENHANCING COATINGS PRODUCT SELECTION GUIDE FIBER-LINE™ COATING SELECTION GUIDE COATING Bondcoat™ Adhesion Enhancing Colorcoat™ Fiber Color Packcoat™ Performance Enhancing Protexcoat™ UV Resistant Swellcoat™ Blocker Water Blocking Swellcoat™ Water Absorbing Wearcoat™ High Abrasion Blockcoat™ Anti-Wicking Repelcoat™ Water Repellant Flamecoat™ Flame Resistant FEATURES • Created for applications where an untreated fiber does not have the ability to provide the appropriate amount of bonding characteristics to another material • Provides adhesion to another fiber or substrate without impacting other performance properties • Improves adhesion of the fiber to the resin matrix it is introduced into • Enables industry standard “burst” tests or stringent delamination analysis • Designed to achieve vibrant colors for safety, identification, and aesthetics • Specialized formulas and binders adhere the pigment to the exterior of the individual filaments, while impregnating deep into the fiber bundle • Available by Pantone or RAL number • Compatible with a variety of composite resins including epoxy, polyurethane, and polyethylene • Stronger than solution-dyed fibers • Designed to add lubricity and temperature resistance at the filament level for braided compression packing • Coating at the fiber level versus the finished braid achieves higher % level coating • Fiber level coating extends the life of the braid and reduces required maintenance • Various formulations available • PTFE, silicone, graphite, and mineral oil • Created for high performance fibers that lack inherent ultraviolet (UV) resistance • Coating impregnates the individual fibers with a specialized resin for improved UV protection • Coating enhancements include UV inhibitors, absorbers and stabilizers • Improves the processing of the product via reduced filament snagging and friction • Low level water- blocking finish for any technical fiber or textile substrate • Provides water- blocked strength reinforcements for dry cable designs • Can absorb 5x to 15x its weight in water • Dust-free coating imparts a very soft fiber hand, advantageous to cable, rope, and other textile processes • Patented technology incorporates super absorbent polymer (SAP) suspended in a proprietary resin matrix • Used in the production of ‘dry-dry’ telecommunications, electromechanical, seismic, umbilical and power cables • Can absorb up to 100x its weight in water • Creates a stable gel when exposed to water • Functionally replaces flooding compounds, filling gels, spun SAF yarns, and water blocking tapes • Enables faster, more economical and robust cable manufacturing • Increases durability and abrasion resistance by encapsulating filaments in the fiber bundle • Extends the life of the product by reducing the effects of friction and yarn on yarn abrasion • Protects the fiber from degradation and filamentation • Ideal for high abrasion and high friction applications in a range of fiber constructions and environments • Wicking refers to the tendency of a yarn or other fiber to draw moisture into filaments via capillary action • Coatings designed to prevent moisture from wicking within and between fibers and strands • Protects Wire or Optical Fiber from damaging effects of moisture, which can cause a drop in signal and attenuation • Hydrophobic additives used to promote and enhance water repellancy in industrial applications • Creates a waterproof barrier that prevents moisture from further migration • Applied at various % levels to optimize for water-proof ratings • Designed to inhibit or slow the spread of fire/flame • Coupled to fibers with inherent flame and thermal resistance to boost performance • Added to fibers with weak flame resistance to improve burn rating SUITABLE FIBERS • Technora® Fiber • UHMWPE • Graphite Fiber • PTFE Fiber • Technora® Fiber • PET Polyester (All shrinks) • UHMWPE • Vectran® LCP • Technora® Fiber • PET Polyester (All shrinks) • PET Polyester (All shrinks) • UHMWPE • PET Polyester (All shrinks) • PET Polyester (All shrinks) • Vectran® LCP • PET Polyester (All shrinks) PRODUCTS • Belt & Hose Reinforcement Yarn • Braided compression rings and seals • Valve stem packing • Pump packing • Filler Yarn • Synthetic Wire Rope • Buffer Thread • Filler Yarn • FRP Rod • Synthetic Wire Rope Kevlar® and Nomex® are trademarks of DUPONT SAFETY & CONSTRUCTION, INC.

In consultation with appropriate officers of the Company, oversee (or provide for the oversight of) regulatory compliance with respect to compensation matters, including with respect to applicable tax laws The Committee shall have sole authority to retain and terminate any search firm to be used to assist the Committee in the identification of candidates for the position of Chief Executive Officer, including sole authority to approve the consultant’s fees and other retention terms.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Adjusted EPS 2006Y* 2007Y* 2008Y* 2009Y* 2010Y 2011Y 2012Y 2013Y YTD Net income attributable to PolyOne common shareholders $ 130.9 $ 40.9 $ (417.0) $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 92.6 Joint venture equity earnings, after tax (68.5) (26.1) (20.8) (19.0) (14.7) (3.7) - - - Special items, after tax (21.2) 41.4 310.0 (31.0) 15.8 (30.5) 35.7 30.4 49.9 Tax adjustments (30.0) (30.7) 147.2 (44.9) (88.3) (42.3) 0.5 2.2 (6.9) Adjusted net income $ 11.2 $ 25.5 $ 19.4 $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 135.6 Diluted shares 92.8 93.1 92.7 93.4 96.0 94.3 89.8 96.5 94.3 Adjusted EPS $ 0.12 $ 0.27 $ 0.21 $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.44 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principal or discontinued operations. Appendix Q3 2014 Financial Highlights At a Glance�Global Color, Additives and Inks At a Glance�Global Specialty Engineered Materials At a Glance�Designed Structures and Solutions At a Glance�Performance Products and Solutions At a Glance�Distribution Plastics: Key to Future Sustainable Development Commitment to Operational Excellence Application Examples Slide Number 28 Anti-Counterfeiting Solutions 2012 Range Rover Evoque Interior Slide Number 31 Metal Replacement Solutions Next Generation Solar Charger High-Barrier Packaging Containers Aerospace Applications Non GAAP Rec - 11 5 14.pdf Sidoti & Company non-GAAP Rec

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. 2) Tax adjustments include the net tax expense/benefit from one-time income tax items, the set-up or reversal of uncertain tax position reserves and deferred income tax valuations allowance adjustments. Appendix Q3 2015 Financial Highlights At a Glance�Global Color, Additives and Inks At a Glance�Global Specialty Engineered Materials At a Glance�Designed Structures and Solutions At a Glance�Performance Products and Solutions At a Glance�Distribution Plastics: Key to Future Sustainable Development Commitment to Operational Excellence Application Examples Outdoor Applications Slide Number 28 Authentication Technology 2015 Range Rover Evoque Interior Slide Number 31 Metal Replacement Solutions High-Barrier Packaging Containers Aerospace Applications Baird Non GAAP Rec.pdf Baird - November 10, 2015

Conference call participants in the question and answer session should pre-register using the link at avient.com/investors, or here, to receive the dial-in numbers and a personal PIN, which are required to access the conference call. They are based on management's expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Three Months Ended March 31, 2023 Three Months Ended March 31, 2022 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 20.8 $ 0.23 $ 64.4 $ 0.70 Special items, after tax (Attachment 3) 22.3 0.24 6.4 0.07 Amortization expense, after-tax 15.1 0.16 10.8 0.12 Adjusted net income / EPS $ 58.2 $ 0.63 $ 81.6 $ 0.89 8 Attachment 2 Avient Corporation Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended March 31, 2023 2022 Sales $ 845.7 $ 892.2 Cost of sales 598.1 637.8 Gross margin 247.6 254.4 Selling and administrative expense 190.5 152.2 Operating income 57.1 102.2 Interest expense, net (28.8) (16.9) Other income (expense), net 0.7 (0.6) Income from continuing operations before income taxes 29.0 84.7 Income tax expense (7.7) (20.0) Net income from continuing operations 21.3 64.7 (Loss) income from discontinued operations, net of income taxes (0.9) 19.8 Net income 20.4 84.5 Net income attributable to noncontrolling interests (0.5) (0.3) Net income attributable to Avient common shareholders $ 19.9 $ 84.2 Earnings (loss) per share attributable to Avient common shareholders - Basic: Continuing operations $ 0.23 $ 0.70 Discontinued operations (0.01) 0.22 Total $ 0.22 $ 0.92 Earnings (loss) per share attributable to Avient common shareholders - Diluted: Continuing operations $ 0.23 $ 0.70 Discontinued operations (0.01) 0.21 Total $ 0.22 $ 0.91 Cash dividends declared per share of common stock $ 0.2475 $ 0.2375 Weighted-average shares used to compute earnings per common share: Basic 91.0 91.5 Diluted 91.8 92.3 9 Attachment 3 Avient Corporation Summary of Special Items (Unaudited) (In millions, except per share data) Special items (1) Three Months Ended March 31, 2023 2022 Cost of sales: Restructuring costs, including accelerated depreciation $ (6.6) $ (4.4) Environmental remediation costs (1.4) (2.0) Reimbursement of previously incurred environmental costs — 0.6 Impact on cost of sales (8.0) (5.8) Selling and administrative expense: Restructuring, legal and other (15.7) 1.9 Acquisition related costs (3.4) (2.9) Impact on selling and administrative expense (19.1) (1.0) Impact on operating income (27.1) (6.8) Other income (loss), net (0.2) 0.1 Impact on income from continuing operations before income taxes (27.3) (6.7) Income tax expense (benefit) on above special items 6.9 1.8 Tax adjustments(2) (1.9) (1.5) Impact of special items on net income from continuing operations $ (22.3) $ (6.4) Diluted earnings per common share impact $ (0.24) $ (0.07) Weighted average shares used to compute adjusted earnings per share: Diluted 91.8 92.3 (1) Special items include charges related to specific strategic initiatives or financial restructuring such as: consolidation of operations; debt extinguishment costs; costs incurred directly in relation to acquisitions or divestitures; employee separation costs resulting from personnel reduction programs, plant realignment costs, executive separation agreements; asset impairments; settlement gains or losses and mark-to- market adjustments associated with actuarial gains and losses on pension and other post-retirement benefit plans; environmental remediation costs, fines, penalties and related insurance recoveries related to facilities no longer owned or closed in prior years; gains and losses on the divestiture of operating businesses, gains and losses on facility or property sales or disposals; results of litigation, fines or penalties, where such litigation (or action relating to the fines or penalties) arose prior to the commencement of the performance period; one-time, non-recurring items; and the effect of changes in accounting principles or other such laws or provisions affecting reported results

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Adjusted EPS 2006Y* 2007Y* 2008Y* 2009Y* 2010Y 2011Y 2012Y 2013Y 2014Y Net income attributable to PolyOne common shareholders $ 130.9 $ 40.9 $ (417.0) $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 Joint venture equity earnings, after tax (68.5) (26.1) (20.8) (19.0) (14.7) (3.7) - - - Special items, after tax(1) (21.2) 41.4 310.0 (31.0) 15.8 (30.5) 35.7 30.4 101.0 Tax adjustments(2) (30.0) (30.7) 147.2 (44.9) (88.3) (42.3) 0.5 2.2 (10.5) Adjusted net income $ 11.2 $ 25.5 $ 19.4 $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 Diluted shares 92.8 93.1 92.7 93.4 96.0 94.3 89.8 96.5 93.5 Adjusted EPS $ 0.12 $ 0.27 $ 0.21 $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 Adjusted EPS 2010 Q1 2011 Q1 2012 Q1 2013 Q1 2014 Q1 2015 Q1 Net income attributable to PolyOne common shareholders $ 20.1 $ 106.0 $ 15.3 $ 11.2 $ 29.4 $ 30.2 Joint venture equity earnings, after tax (0.5) (3.7) - - - - Special items, after tax(1) (0.3) (79.8) 6.1 17.2 14.1 5.5 Tax adjustments(2) (3.5) (1.5) 0.1 0.5 (1.6) 5.9 Adjusted net income $ 15.8 $ 21.0 $ 21.5 $ 28.9 $ 41.9 $ 41.6 Diluted shares 95.3 96.4 90.7 92.8 95.7 90.1 Adjusted EPS $ 0.17 $ 0.22 $ 0.24 $ 0.31 $ 0.44 $ 0.46 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principal or discontinued operations Appendix Q1 2015 Financial Highlights At a Glance�Global Color, Additives and Inks At a Glance�Global Specialty Engineered Materials At a Glance�Designed Structures and Solutions At a Glance�Performance Products and Solutions At a Glance�Distribution Plastics: Key to Future Sustainable Development Commitment to Operational Excellence Application Examples Slide Number 28 Authentication Technology 2015 Range Rover Evoque Interior Slide Number 31 Metal Replacement Solutions Next Generation Solar Charger High-Barrier Packaging Containers Aerospace Applications Credit Suisse - June 25 2015 r2 Credit Suisse - June 25 2015

Overall, we are pleased with our performance as we have been able to overcome a number of continuing challenges including inflation, supply chain disruptions, extended lockdowns in China and the war in Ukraine,” said Robert M. Conference call participants in the question and answer session should pre-register using the link at avient.com/investors, or here, to receive the dial-in numbers and a personal PIN, which are required to access the conference call. They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Adjusted EPS 2006Y* 2007Y* 2008Y* 2009Y* 2010Y 2011Y 2012Y 2013Y 2014Y Net income attributable to PolyOne common shareholders $ 130.9 $ 40.9 $ (417.0) $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 Joint venture equity earnings, after tax (68.5) (26.1) (20.8) (19.0) (14.7) (3.7) - - - Special items, after tax(1) (21.2) 41.4 310.0 (31.0) 15.8 (30.5) 35.7 30.4 101.0 Tax adjustments(2) (30.0) (30.7) 147.2 (44.9) (88.3) (42.3) 0.5 2.2 (10.5) Adjusted net income $ 11.2 $ 25.5 $ 19.4 $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 Diluted shares 92.8 93.1 92.7 93.4 96.0 94.3 89.8 96.5 93.5 Adjusted EPS $ 0.12 $ 0.27 $ 0.21 $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principal or discontinued operations Special items include charges related to specific strategic initiatives or financial restructuring such as: consolidation of operations; debt extinguishment costs; employee separation costs resulting from personnel reduction programs, plant phase-in costs, executive separation agreements; asset impairments; mark-to-market adjustments associated with actuarial gains and losses on pension and other post-retirement benefit plans; environmental remediation costs, fines, penalties, remediation costs and related insurance recoveries related to facilities no longer owned or closed in prior years; gains and losses on the divestiture of operating businesses, joint ventures and equity investments; gains and losses on facility or property sales or disposals; results of litigation, fines or penalties, where such litigation (or action relating to the fines or penalties) arose prior to the commencement of the performance period; unrealized gains and losses from foreign currency option contracts; one-time, non-recurring items; and the effect of changes in accounting principles or other such laws or provisions affecting reported results. (2) Tax adjustments include the net tax expense (benefit) from one-time income tax items and deferred income tax valuations allowance adjustments.

The number of shares of common shares outstanding as of January 31, 2015 was 89,100,439. The unit value is determined by the total value of fund assets divided by the total number of units of the fund owned. As a result, pre-tax income by location and the components of income tax expense by taxing jurisdiction are not directly related.