Those interested in learning about or registering for this and other Avient technical seminars at NPE can click here. Dyneema®, the world’s strongest fiber™, enables unmatched levels of performance and protection for end-use applications, including ballistic personal protection, marine and sustainable infrastructure and outdoor sports  

Those interested in learning about or registering for this and other Avient technical seminars at NPE can click here.   Dyneema®, the world’s strongest fiber™, enables unmatched levels of performance and protection for end-use applications, including ballistic personal protection, marine and sustainable infrastructure and outdoor sports  

CUSTOMIZED SOLUTIONS Our custom capabilities include: • Drilling • Routing • Machining USES AND APPLICATIONS Composite ballistic panels from Avient are suitable for indoor and outdoor use in commercial, governmental, industrial, and residential applications: • Military structures • Infrastructure facilities and equipment • Banks • Check cashing stations • Pawn shops • Loan and bail/bond offices • Courtrooms • Police stations • Detention facilities • Bonded warehousing • Security buildings • Equipment shielding locations • Safe rooms • Storm shelters • Judges’ chambers • Finishing • Custom colors • Unique panel sizes UL 752 & NIJ STANDARDS FOR BALLISTIC RESISTANT PROTECTIVE MATERIALS UL Rating NIJ Level Ammunition Velocity No. Property GlasArmor Panel ThermoBallistic Panel Test Method Glass Content 55 wt% 73 wt% Density 0.066 lb/in3 1.83 g/cm3 0.062 lb/in3 1.72 g/cm3 ASTM D-792 Flex Mod 2.1–2.7 msi 14.5 - 18.6 GPa 2.5 msi 17.2 GPa ASTM D-790 Flex Strength 65 ksi 448 MPa 14 ksi 96.5 MPa ASTM D-790 Barcol Hardness 50–60 n/a ASTM D-2583 Fire Rating 1 hour1 n/a ASTM E-119-09c Flame Spread Rating 452 n/a ASTM E-84-08a Smoke Developed Rating 1652 n/a ASTM E-84-08a MATERIAL DATA (TYPICAL VALUES) 1 UL Level 3 panel was fire tested as part of a wall system with steel studs and drywall face sheet 2 NFPA & IBC Class B rating achieved www.avient.com Copyright © 2023, Avient Corporation.

Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Healthcare 8–10% Composites 10% Asia / LATAM 5% Other (GDP growth) 2–3% Avient 6.5% Avient Corporation 14 Avient Corporation 15 Clariant: Better Together Norbert Merklein • Geographic footprint – Complementary not overlapping. Develop and implement solutions to end plastic waste while supporting AEPW $1.5B investment in key initiatives. 2030 Sustainability Targets 27Avient Corporation Sustainalytics 2021 ESG Risk Ranking RANK (1st = lowest risk) PERCENTILE (1st – lowest risk) Chemicals INDUSTRY 75/449 17th Specialty Chemicals SUBINDUSTRY 21/124 17th ISS November 2021 ESG Scores SCORE (1 = Best, 10 = Worst) Environmental 2 Social 1 Governance 4 28Avient Corporation Avient ESG Ratings Products 8 W A Y S W E H E L P C U S T O M E R S B E M O R E S U S T A I N A B L E 29Avient Corporation Enabling Customers’ Recycling Goals R E S O U N D ™ R R E C Y C L E D - C O N T E N T T P E 62% recycle content High performance and quality Reduce waste with refillable features 30Avient Corporation Lightweighting Commercial Trucks P O L Y S T R A N D ™ T H E R M O P L A S T I C C O M P O S I T E L A M I N A T E S 60% Weight reduction in box truck panels Improve fuel economy 100% recyclable 31Avient Corporation 75% less water Enabling Customers to Conserve Resources, Reduce Waste R E N O L ™ S P I N D Y E C O L O R I N G M E T H O D 30% less energy 25% lower carbon footprint 32Avient Corporation Sustainability for a Better Tomorrow *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Color business Revenue From Sustainable Solutions* 2016-2021 2016 2017 2018 2019 2020PF** 2021E $405M $455M $340M $550M $790M $930M $270 215 170 90 90 30 45 20 $930M2021E Sales ($ in millions) Avient Corporation 33 The Challenge and the Opportunity Avient Corporation 34 Plastic is Part of the Solution PLASTIC ALTERNATIVE PACKAGING (GLASS & ALUMINUM) Requires… Avient Corporation 35 Source: Franklin Associates, A Division of Eastern Research Group (ERG) 2x more Energy 6x more Water 5x more Weight 2x more Greenhouse gas emissions Brand Owners Goals: Substantially Increase use of Recycled Materials 1 1 2 3 5 7 7 7 9 10 30 40 14 25 13 22 35 9 19 13 18 41 Current Additional share needed to reach 2025 target Brand Owner 1 Brand Owner 3 Brand Owner 2 Brand Owner 7 Brand Owner 4 Brand Owner 10 Brand Owner 6 Brand Owner 11 Brand Owner 5 Brand Owner 8 Brand Owner 9 Brand Owner 12 Brand Owner 13 Percent recycled plastic used: (examples and not exhaustive) (1) (1) Latest year reported. Capacity below 6GHz 5G mm-wave capacity Demand (GB/mo) B B B B B B B B 10% CAGR Megatrend Growth Rate What We Shared Today A SI A AN D L AT I N A ME RI CA $210 $1,150 2010 2021E Weighted Avg.

Total Fatality Rate (#—Direct) Total Fatality Rate (#—Contractors) Process Safety Total Incident Rate (#)

The interest and activity for our sustainable solutions used in packaging has never been higher," said This material was developed in response to growing customer demand and is already being utilized in one of the world's largest CPG companies to achieve 100% PCR packaging on multiple personal care product lines.

We are optimistic we can host this meeting in person, but will make arrangements to do so by video if necessary,” said Jamie Beggs, Senior Vice President and Chief Financial Officer, Avient Corporation. Three Months Ended June 30, Six Months Ended June 30, Reconciliation to Consolidated Statements of Income 2021 2020 2021 2020 Sales $ 1,235.2 $ 609.1 $ 2,397.5 $ 1,320.6 Gross margin - GAAP 288.7 149.7 591.1 321.2 Special items in gross margin (Attachment 3) 12.6 (4.2) 10.4 (4.0) Adjusted gross margin $ 301.3 $ 145.5 $ 601.5 $ 317.2 Adjusted gross margin as a percent of sales 24.4 % 23.9 % 25.1 % 24.0 % Operating income - GAAP 108.1 38.0 228.5 90.8 Special items in operating income (Attachment 3) 14.2 9.0 16.6 18.7 Adjusted operating income $ 122.3 $ 47.0 $ 245.1 $ 109.5 Adjusted operating income as a percent of sales 9.9 % 7.7 % 10.2 % 8.3 % The table below reconciles pre-special income tax expense and the pre-special effective tax rate to their most comparable US GAAP figures. Three Months Ended June 30, 2021 2020 GAAP Results Special Items Adjusted Results GAAP Results Special Items Adjusted Results $ 89.8 $ 14.2 $ 104.0 $ 31.3 $ 2.4 $ 33.7 Income tax expense - GAAP (20.4) — (20.4) (7.9) — (7.9) Income tax impact of special items (Attachment 3) — (3.4) (3.4) — (0.7) (0.7) Tax adjustments (Attachment 3) — 0.9 0.9 — 0.9 0.9 Income tax (expense) benefit $ (20.4) $ (2.5) $ (22.9) $ (7.9) $ 0.2 $ (7.7) Effective Tax Rate(1) 22.7 % 22.0 % 25.1 % 22.5 % (1) Rates may not recalculate from figures presented herein due to rounding 13 Six Months Ended June 30, 2021 2020 GAAP Results Special Items Adjusted Results GAAP Results Special Items Adjusted Results $ 192.4 $ 16.6 $ 209.0 $ 76.3 $ 12.0 $ 88.3 Income tax expense - GAAP (43.3) — (43.3) (19.8) — (19.8) Income tax impact of special items (Attachment 3) — (4.3) (4.3) — (2.7) (2.7) Tax adjustments (Attachment 3) — 2.0 2.0 — 1.9 1.9 Income tax (expense) benefit $ (43.3) $ (2.3) $ (45.6) $ (19.8) $ (0.8) $ (20.6) Effective Tax Rate(1) 22.5 % 21.8 % 25.9 % 23.3 % (1) Rates may not recalculate from figures presented herein due to rounding The following pro forma adjustments are referenced by management to provide comparable business performance by incorporating the Clariant Masterbatch business in periods prior to the acquisition date (July 1, 2020).

Each officer must: • avoid potential, real, or perceived conflict of interest situations between personal and professional relationships. Should any such conflict of interest situation arise, the officer must report the details of the situation to both the General Counsel and the Chair of the Audit Committee for disposition; • be responsible, to the best of his or her ability, for full, fair, accurate, timely and understandable disclosure in reports and documents that the company files with, or submits to, the SEC and in other public communications made by the company; • maintain compliance with applicable governmental laws, rules and regulations; • report violations of this code of ethics in accordance with the procedures outlined below; and • be personally responsible for adherence to this Code of Ethics. Reporting of violations of the Code of Ethics Should situations arise that cause a potential conflict of interest for any one of these officers, then the details of the circumstances of the potential conflict of interest must be reported (including self-reporting) immediately to the General Counsel, the Chair of the Audit Committee and the independent auditor.

Compared to our prior adjusted EPS expectations, raw material deflation as well as improving mix from composites and sustainable solutions positively impacted the quarter and more than offset weaker demand conditions.” 2 “Sequentially, we’ve seen modest improvement in Asia, but demand across other regions remains sluggish, particularly in Europe, as consumers remain cautious with continued inflation and rising interest rates,” Mr. 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. Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: 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; changes in 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; our ability to achieve strategic objectives and successfully integrate acquisitions, including Avient Protective Materials; an inability to raise or sustain prices for products or services; our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; information systems failures and cyberattacks; 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; and other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation and any recessionary conditions.

The world’s strongest fiber™ Dyneema® HB330, HB332 Advanced hard ballistic unidirectional materials for personal and vehicle armor Unmatched ballistic protection Maximum V50 ballistic performance to stop high-velocity threats Outstanding thermal behavior Retains performance in extreme conditions Ultra-light strength Lightest solution without compromising protection Defense: enabling up to compared to Dyneema® gen-2 materials currently used 20% weight savings Law enforcement: enabling up to compared to Dyneema® gen-1 materials currently used 45% weight savings Q4 2024 results Copyright © . EPS • Adjusted EPS of $0.49 includes unfavorable FX of $0.01 • Unfavorable FX was more than offset by favorable effective tax rate and interest expense 0.49 Guidance Actual RANGE 0.46 0.50 9Copyright © . EPS guidance 2025 financial guidance ▲ Further Fed rate cuts ▲ Chinese stimulus ▲ Economic recovery in Europe ▲ Continued strength in defense applications for both military and local law enforcement ▼ Policy uncertainty and changes ▼ Persistent inflation impacting consumer spending / slowdown of US economy ▼ Further deterioration of Europe economy ▼ FX volatility M A C R O A S S U M P T I O N S I N F L U E N C I N G R A N G E 19Copyright © .