They use words such as "will," “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe” and other words and terms of similar meaning in connection with any discussion of future operating or financial condition, performance and/or sales. Continue fostering our Great Place to Work® culture Strategic Objectives Long Term Growth Rates Growth Drivers $340 $455 $790 $1,120 $51 $84 $212 $650 $108 $113 $231 $230 $265 $358 $726 $730 8-12% 8-10% 8-10% 5% Sustainable Solutions Composites Healthcare Asia/Emerging Regions Profitable Growth Great Place to Work 5.4% 10.9% 2006 2014 2023E EBITDA Margins $0.14 $1.93 2006 2014 2023E TOP-TIER SUSTAINABILITY PERFORMANCE AND RECOGNITION Industry Sustainability Standards ESG Ratings Performance 1 3 5 5 87th 94th percentile Innovation is the lifeblood of a specialty company. PRIOR YEAR $790 $710 2022 2023 $107 $112 2022 2023 Sales Adjusted EBITDA $0.42 $0.47 2022 PF 2023 - 10% + 5% + 12% Sales Adjusted EBITDA Adjusted EPS 16 $112 $500 $0.47 Q4 AND FULL YEAR 2023 GUIDANCE $710 $3,130 Sales Adjusted EBITDA Adjusted EPS 17 (in millions) (in millions) Guidance: Free Cash Flow $180 $180 Prior Guidance Guidance FREE CASH FLOW & INCREASED DIVIDEND 13th Consecutive Dividend Increase 0.16 0.26 0.42 0.58 0.79 0.85 0.99 1.03 2011 2013 2015 2017 2019 2021 2023 2024 S U S TAI NABI L I T Y DAY RE CAP SUSTAINABILITY AS A GROWTH DRIVERLONG-TERM REVENUE GROWTH DRIVERS 60%+ Key Growth Drivers Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other (GDP Growth) Total Company Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Composites 8–10% Healthcare 8–10% Asia / LATAM 5% Other (GDP growth) 0–2% Avient 6% SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH 8-12% Long Term Growth 50 90 2022 2030 Medical Plastics Market Size (in $Billions) 2020 2030 Recycled Plastics Virgin Plastics Growing Demand for Recycled Content Avient Sustainable Solutions 46 2023 2032 Global Offshore Annual Wind Installations (in Gigawatts) Sources: McKinsey, Bloomberg, Grand View Research SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH 21 • Transformative acquisitions combined with divestitures of more cyclical businesses have improved margins over 400 bps since 2018 • 20% long-term margin goal to be driven by key growth drivers, with sustainable solutions playing a meaningful role 5.4% 11.5% 2006 2018 2023E Recovery Growth Drivers Strategic Objective 20%+ +1%+ +3%+ ADJUSTED EBITDA MARGIN EXPANSION 22 • 6% annualized long-term sales growth leveraging sustainable solutions, composites, healthcare, and emerging regions • Expand EBITDA margins to 20% • Deliver annual EBITDA and EPS growth of 10% and 15% • Maintain asset-light, 80% free cash flow conversion profile and be valued as a specialty formulator • Continue fostering our Great Place to Work® culture CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 23 PEER COMPARISONS AVIENT IS ASSET LIGHT Capex / Revenue 2023E (%) Avient Specialty Other Specialty / Note: Avient reflects 2023 estimated revenue of $3,130 and estimated run-rate CAPEX of $110M. 26 3.5 1.8 2.7 3.0 3.4 3.7 2.8 3.7 4.6 5.0 6.9 7.0 8.6 11.1 Av ie nt PP PM FM C N C FREE CASH FLOW CONVERSION Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA.

HOW ALTERNATIVE POLYMERS COMPARE TO PA 6,6 PA 6 | POSSIBLE APPLICATIONS: Automotive, Industrial, Consumer & Sporting Goods Wider processing temperature range Better surface quality Better weathering resistance Shorter conditioning time—nearly half that of PA 6,6 Lower temperature resistance Slightly lower chemical resistance Higher water absorption Lower stiffness/wear resistance PK | POSSIBLE APPLICATIONS: Automotive, Consumer & Sporting Goods, Industrial, Electrical & Electronics Lower CO2 emissions in production Better hydrolysis and chemical resistance Comparable dimensional stability Inherently lubricious for reduced wear and friction Easier to mold Cost competitive Lower short- and long-term thermal performance Harder to color More limited process window PBT/PET | POSSIBLE APPLICATIONS: Electrical & Electronics Lower water absorption Slightly higher rigidity/stiffness (for PBT) Better abrasion resistance Slightly better electric resistance Lower toughness properties Higher density Lower short- and long-term temperature resistance Lower hydrolysis resistance PP | POSSIBLE APPLICATIONS: Automotive, Consumer Goods, Lightweighting Applications Lower water absorption Slightly better chemical resistance Lower density Cost effective Fiber reinforced PP can achieve similar or better mechanical properties to PA 6,6 GF30 Reduced rigidity/stiffness Much lower abrasion resistance Lower electric resistance Reduced short- and long-term temperature resistance PC/PBT & PC/PET BLENDS | POSSIBLE APPLICATIONS: Automotive Interiors, Consumer Goods, Household Appliances Higher impact strength Good scratch resistance Good wear resistance Lower mechanical properties Higher brittleness Narrow processing temperature range PA 6,6/PET BLENDS | POSSIBLE APPLICATIONS: Automotive, Industrial, Appliance, Electrical & Electronics, Applications Where Low Water Absorption is Required Reduced water absorption—up to 40% Slightly higher mechanical properties in the conditioned state Slightly lower temperature resistance Slightly lower chemical resistance Narrow processing temperature range PA/PP BLENDS | POSSIBLE APPLICATIONS: Automotive Interiors, Electronics, Consumer & Sporting Goods Good adhesion to polyolefin-based TPEs Low permeability of water Good processability Lower density Lower temperature resistance Lower mechanical properties POST-INDUSTRIAL RECYCLED SOLUTIONS (PA 6,6/PA 6/PP) | POSSIBLE APPLICATIONS: Automotive Accessories, Industrial, Consumer & Sporting Goods Between 50-80% recycled content Good processability Cost effective Reduced chemical resistance Wider range of mechanical specifications Potential for slightly lower mechanical properties 1.844.4AVIENT www.avient.com Copyright © 2024, Avient Corporation.

Cesa™ Aversive Technology for Wire & Cable Protection Masterbatch additives for long-term cable protection against rats and termites, compliant with the EU Biocidal Product Regulation (BPR) PRODUCT BULLETIN PRODUCT DESCRIPTION Cesa™ Aversive Technologies are masterbatches which, when incorporated into cable jackets, provide long-term protection against gnawing by rats and termites. TECHNOLOGY BENEFITS • Helps provide long term cable protection against rats and termites • Enables manufacturers and cable users to be compliant with EU Regulations • Easy to use, direct incorporation in the jacket, no need for additional layer to protect the cable • Helps avoid unplanned service breakdowns with associated high repair costs 1 CA-Sept15-Doc.6.2- Final 2 A masterbatch should be regarded as a biocidal product if it is has a biocidal function.

Long-Term Incentive. We also believe that long- term incentive compensation is an important retention tool. The 2021-2023 Long-Term Incentive Program awards were granted under the 2020 Plan.

Patterson Page 101 Critical Imperatives – Near Term • Successfully integrate ColorMatrix with “Invest to Grow” strategy • Accelerate cross-selling and leverage Lean Six Sigma to drive sales-force effectiveness and Sigma to drive sales-force effectiveness and improve execution • Overcome current demand weakness in Europe and beat our 2012 goals! Page 102 Critical Imperatives – Medium to Long Term • Continue cultural and paradigm shift from commodity compounder to collaborative formulator as One PolyOne • Accelerate innovation and leverage megatrends to improve our mix of business with higher-margin improve our mix of business with higher-margin specialty products • Increase specialty contribution and advance globalization via acquisitions • Drive relentless execution and creative innovation as key competitive differentiators Page 103 2011 Proforma ColorMatrix 2015 Target “Where we are” “Where we expect to be” 1) Operating Income % Specialty 8.9% PP&S 7.2% 12 – 16% 9 – 12% Elevating our Expectations and Yours PP&S 7.2% Distribution 5.6% 2) Specialty Platform % of Operating Income 50% 3) ROIC* (after-tax) 10% 4) Adjusted Annual EPS Growth 3 yr CAGR = 71% 9 – 12% 6 – 7.5% 65 – 75% 15% Double Digit Expansion *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period Page 104

Each Committee member will serve at the pleasure of the Board for such term as the Board may decide. The Committee will have the sole authority to retain and terminate any search firm to assist in the identification of director candidates and the sole authority to approve the fees and other retention terms of such search firms. The Committee will have sole authority to retain and terminate any search firm to be used to assist the Board in the identification of candidates for the position of Chief Executive Officer, including the sole authority to approve the consultant’s fees and other retention terms.

They use words such as “will,” “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe,” and other words and terms of similar meaning in connection with any discussion of future operating or financial condition, performance and/or sales. 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. In addition, operating income before the effect of special items is a component of Avient annual and long-term employee incentive plans and is used in debt covenant computations.

Investing in Innovation — Specialty companies invest to grow, so we ensure our resources are concentrated on material science for high-growth end markets, poised for value creation in the long term. It’s important to note that future revenue synergies through increased innovation and commercial excellence are not part of these estimates and will represent additional growth over the long term. In the near term we expect substantial earnings and cash flow gains as we emerge from the COVID-19 pandemic.

Investing in Innovation — Specialty companies invest to grow, so we ensure our resources are concentrated on material science for high-growth end markets, poised for value creation in the long term. It’s important to note that future revenue synergies through increased innovation and commercial excellence are not part of these estimates and will represent additional growth over the long term. In the near term we expect substantial earnings and cash flow gains as we emerge from the COVID-19 pandemic.

Š To develop our expected long-term return on plan assets, we consider our historical long-term asset return experience, the expected investment portfolio mix of plan assets and an estimate of long-term investment returns. The term loan was recorded at par value less a discount. Total interest paid on long-term and short-term borrowings was $50.4 million in 2013, $45.8 million in 2012 and $32.0 million in 2011.