Senior management has referenced adjusted EPS excluding the impact of additional shares issued in February 2020. This guidance excluded the impact of the additional shares subsequently issued in February. Reconciliation to Adjusted EPS Excluding Special Items and Impacts of February 2020 Equity Offering Three Months Ended March 31, 2020 Net income from continuing operations – GAAP $ 33.1 Special items, after tax(1) 8.6 After tax interest income earned on equity proceeds, included in Interest expense, net (0.7) Adjusted net income excluding special items and impact of interest income on equity proceeds $ 41.0 Diluted weighted-average shares used to compute earnings per common share 86.7 Weighted-average impact of 15.3 million shares issued in February 2020 equity offering (9.3) Diluted weighted-average shares excluding impact of shares issued in February 2020 equity offering 77.4 Adjusted EPS - excluding special items and the net impact of equity offering $ 0.53 Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data)

Injection Moldable Polymer CFRTP Blank Auxiliary Heater Overmolded Finished Part Increase strength and impact resistance. As illustrated here, molding with continuous fiber reinforced composites enables improved flexural performance over filled polypropylene as well as increased impact resistance and overall weight reduction. With a single layer of Polystrand CFRTP: • Flexural strength increases more than 60% • Total energy absorbed on impact improves by nearly 35% • Peak force at puncture increases over 58% Increase strength and impact resistance.

No. 0514.01) 12/11/2023 Page 1 of 1 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 AVIENT CORPORATION – ANALYTICAL SOLUTIONS 33587 Walker Road Avon Lake, OH 44012 Stephanie Mims Phone: 440 930 3499 MECHANICAL Valid To: September 30, 2025 Certificate Number: 0514.01 In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to this laboratory to perform the following rubber and plastics tests: Test Description Test Method or Standard Brittleness Temperature (Impact) ASTM D746; ISO 812 Charpy Impact ISO 179-1 Color Determination by Spectrophotometer ASTM D2244, E1331; ISO 7724 Conditioning of Plastics for Testing ASTM D618; ISO 291 Deflection Temperature Under Flexural Load ASTM D648; ISO 75-1, -2 Durometer Hardness (Shore A and D) ASTM D2240; ISO 7619-1 Flexural Properties ASTM D790; ISO 178 Flow Rate (Extrusion Plastometer) ASTM D1238 (Procedures A and B); ISO 1133 Impact Resistance (Izod) ASTM D256; ISO 180 Instrumented Impact ASTM D3763; ISO 6603-2 Specific Gravity/Density ASTM D792 (Method A); ISO 1183-1 Specular Gloss ASTM D523; ISO 2813 Tackiness of Interior Materials BO 061-01 Tear Resistance ASTM D624, D1004; ISO 34 Tensile Properties ASTM D412 (Method A), D638, D882; ISO 37, 527-1, -2, -3, -4, -5 Xenon-Arc Exposure Testing ASTM D2565, G155; SAE J1885 (Withdrawn January 2008), J1960 (Withdrawn January 2008), J2412, J2527; BO-116-01 For the tests to which this accreditation applies, please refer to the laboratory’s Mechanical Scope of Accreditation.

KEY CHARACTERISTICS • Excellent chemical resistance • Low moisture uptake • Comparable dimensional stability to nylon • Reinforced with 10–33% glass fill • High impact and wear resistance • Eco-conscious alternative to PA66 and PA6 MARKETS & APPLICATIONS Whether using a standard or customized formulation, the PK-based Trilliant grades provide a high-performing, cost-competitive, and more eco-conscious alternative to competitive materials found in biopharmaceutical processing, hospital settings, and home healthcare applications. PRODUCT BULLETIN PROPERTY COMPARISON TRILLIANT HC VS NYLON Density Impact Flexural Modulus (Dry) Tensile Strength (Dry) HDT Equilibrium Moisture — PKE-GF PA12-GF PA612-GF 5 4 3 2 1 0 Impact Shrink Flexural Modulus (Dry) Chemical Resistance Flexural Modulus (Cond.) CO2 Emission Factor — Trilliant HC — PA6-GF — PA66-GF HDT Wear Density 5 4 3 2 1 0 Equilibrium Moisture 1: Poor 3: Good 5: Excellent Density Impact Flexural Modulus (Dry) Tensile Strength (Dry) HDT Equilibrium Moisture — PKE-GF PA12-GF PA612-GF 5 4 3 2 1 0 Impact Shrink Flexural Modulus (Dry) Chemical Resistance Flexural Modulus (Cond.)

Among the required properties were high strength and stiffness, impact resistance, moderate temperature resistance and low warpage. This material offers the stiffness and high impact performance required to support and secure multiple electronic attachments, and provides the impact and temperature resistance needed. THE IMPACT By replacing traditional fabricated bent steel plate with injection-molded Bergamid PA 6 resin, HellermannTyton was able to duplicate key performance attributes while gaining new benefits in the areas of cost savings, design freedom and weight reduction.

PREMIUM TOOL BRAND S C R E W D R I V E R H A N D L E • High impact resistance • High tensile strength • Aesthetic surface • Good processability • Customized a nylon 6 based formulation, with an emphasis on the impact properties and processability, yet delivering the desired aesthetic surface • Met the customer’s aggressive timeline and helped troubleshoot application needs to determine the best material solution Custom Edgetek™ Nylon Formulation KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION IMPACT RESISTANCE + AESTHETICS LEARN MORE Copyright © 2020, Avient Corporation.

SAFETY EQUIPMENT MANUFACTURER M I L I T A R Y H E L M E T P A R T S • High impact resistance • RAL 6031 – military green color • High molecular weight • Met impact resistance requirements for military helmets • Delivered strong collaboration with Avient Design team and service • Provided specific RAL color matching for military application Bergamid™ Polymer Formulations KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION IMPACT RESISTANCE & COLOR MATCHING LEARN MORE © 2023, Avient Corporation, All Rights Reserved. https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/nymax-bergamid-polymer Safety Equipment manufacturer

develops its additives collaboratively with brands and packaging manufacturers while addressing key global pressures to reduce both food waste and the environmental impact of packaging. Comptek, SilCoTec, Gordon Composites and Polystrand, including whether such businesses will be accretive, retain the management teams of acquired businesses, and retain relationships with customers of acquired businesses; 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; our ability to achieve new business gains; the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; changes in polymer consumption growth rates and laws and regulations regarding the disposal of plastic in jurisdictions where we conduct business; changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online; 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 achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions and employee productivity goals; an inability to raise or sustain prices for products or services; our ability to continue to pay cash dividends, including at the increasing rate, which will be subject to, among other factors, market conditions, our cash flow and cash requirements and restrictions contained in any of our debt agreements; and other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation.

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: the time required to consummate the acquisition of the Dyneema business; the satisfaction or waiver of conditions in the purchase agreement; completion of the consultation process with the relevant Dutch works council; the ability to obtain required regulatory or other third-party approvals and consents and otherwise consummate the proposed acquisition of the Dyneema business; our ability to achieve the strategic and other objectives relating to the proposed acquisition of the Dyneema business and possible sale of the distribution business; 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; 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; information systems failures and cyberattacks; and other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation.

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include 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; the current and potential future impact of the COVID-19 pandemic on our business, results of operations, financial position or cash flows including without any limitation, any supply chain and logistics issues; the speed and strength of growth in the global 5G infrastructure market; our ability to achieve the strategic and other objectives relating to the acquisition of Clariant's Masterbatch business, including any expected synergies; 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 achieve the anticipated financial benefit from initiatives related to acquisition and integration working capital reductions, cost reductions and employee productivity goals; our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; information systems failures and cyberattacks; our ability to consummate and successfully integrate acquisitions; and 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.