Note that if your residence is located in a country different to where the job you are applying to is, the use of your data by Avient’s group company is not subject to the data protection regulations in your country, and as such, a different level of protection may apply.

The virtual format enables full and equal participation of all shareholders regardless of location, and reduces the cost and environmental impact of the Annual Meeting. We have decided to hold the Annual Meeting virtually again this year because doing so enables greater shareholder attendance and participation from any location around the world, and reduces the cost and environmental impact of the Annual Meeting. As of December 31, 2023, Avient employed approximately 9,300 people, 34% of which were located in the U.S. and Canada, 34% were located in Europe, Middle East, and Africa (EMEA), 25% were located in Asia, and 7% were located in Latin America.

ZAHLUNG UND KREDIT 7.1 Buyer shall make all payments hereunder in cash or cash equivalent at face value in the funds, within the time, and at the location indicated on Seller’s invoice. 7.1 Der Käufer hat alle Zahlungen im Rahmen dieses Vertrages in bar oder gleichwertigen Zahlungsmitteln zum Nennwert in der auf der Rechnung des Verkäufers angegebenen Währung, innerhalb der dort angegebenen Frist und an dem dort angegebenen Ort zu leisten. 7.2 Late payments will bear interest in accordance with German statutory provisions. 7.2 Auf verspätete Zahlungen werden Verzugszinsen nach den deutschen gesetzlichen Bestimmungen erhoben. 7.3 Buyer is only entitled to set-off insofar as his counterclaims are undisputed or have been legally established. 7.3 Der Käufer ist zur Aufrechnung nur berechtigt, soweit seine Gegenansprüche unbestritten oder rechtskräftig festgestellt sind. 7.4 If Buyer’s business is no longer operated in the ordinary course of business which shall include, without limitation, acts of seizure, late payments, discontinuation of payments or filing for insolvency proceedings under any applicable law, or if Buyer is in payment default towards Seller or in case of any other incidents giving rise to doubts about its creditworthiness, Seller at its discretion may require advance cash payments, COD, shorter terms, and/or the posting of satisfactory security by Buyer, and may withhold shipments. If Buyer resells the Products, Buyer agrees to the Terms and Conditions Regarding Buyer Resale of Avient Products located at www.avient.com/terms. 17.1 Der Verkäufer verbietet den Weiterverkauf des Produkts, es sei denn, der Verkäufer hat dies ausdrücklich schriftlich genehmigt. If Buyer resells the Products, Buyer agrees to the Terms and Conditions Regarding Buyer Resale of Avient Products located at www.avient.com/terms. 17.1 Der Verkäufer verbietet den Weiterverkauf des Produkts, es sei denn, der Verkäufer hat dies ausdrücklich schriftlich genehmigt.

If Buyer resells the Products, Buyer agrees to the Terms and Conditions Regarding Buyer Resale of Avient Products located at www.avient.com/terms.

Annual Purchases RAW MATERIAL AND SUPPLY CHAIN UPDATE Based on 2021 purchases, excludes Distribution business DYN E E MA ACQ U I S I T I O N 32 15x stronger than steel Reduces weight by 30% vs. other solutions Well-maintained global asset base poised to serve growing demand • Purchase price of $1.48B represents 11.4x multiple of 2022 EBITDA • Acquisition will expand Avient’s composites and fiber portfolio with Dyneema®, the World’s Strongest Fiber™ • $415M sales and 30%+ EBITDA margins; Immediately accretive to pro forma 2022 EPS, adding $0.35 • 1,300 patents globally, ~50% of sales patent protected • 1,000+ employees across global production network and dedicated technology centers • Composites platform will increase from $261M to $680M in revenue and from $49M to $180M in EBITDA Indicates Dyneema® location $175M (42%) $65M (16%) $175M (42%) 2022E Sales By Region ($M) (1) $0.35 EPS excludes intangible amortization (2) Based on 2022 expected results (1) (2) (2) FIT WITH FOUR PILLAR STRATEGY 33 Specialization • Innovation-led organization with tremendous intellectual property value in trademarks, patents and “know-how” • Deep history of application development and premium, leading brand with the World’s Strongest FiberTM Globalization • Global customer base with an established presence across all major geographic regions • Global technology centers complement existing Composites applications and expertise Operational Excellence • Best-in-class safety performance • Well-run and maintained asset base fit to serve future growth • Highly effective and reliable supply chain with emphasis on optimizing service to customers Commercial Excellence • Deep customer relationships extend across the value chain and drive ability to grow • Offer a full suite of services with an active role in design, development and commercialization People Experienced and talented associates with a passion for safety, specialization and winning DYNEEMA® OVERVIEW K E Y I N D U S T R I E S PERSONAL PROTECTION Military • Law Enforcement • First Responders Body Armor • Helmets • Vehicle Protection $215M MARINE & SUSTAINABLE INFRASTRUCTURE Towing / Mooring • Aquaculture • Floating Wind • Offshore Cranes $130M CONSUMER Consumer • Outdoor High Performance • Safety Equipment $70M 34 Figures reflect 2022 expected sales MIFOverview Competition Valuechain & Go-to-market Strategy Innovation Financials TECHNOLOGY 35 1,200 1,300 2,500 Avient Dyneema Combined Patents • True specialty business – the World’s Strongest Fiber™ • Deep history of application development with customers, strongest in the industry • The only UHMwPE (ultra-high molecular weight polyethylene) fiber producer that is backward integrated o Provides innovation advantage through control of all steps of the process • Complementary with our existing reinforced film expertise (PolyStrand) and engineered fiber presences (Fiber-Line) WINNING PROPERTIES Ultra high strength vs. weight Highly flexible Floats on water Chemically inert; no smell/taste and non-toxic High resistance to UV radiation Self-lubricating, with low friction One-of-a-kind technology ® FORMULATION PROCESS 36 • Like Avient, Dyneema® offers similar core competencies around formulation and material science • Technology that combines polymers and fibers to provide specialized, high performing solutions for customers • Design capabilities ensure that applications are highly customized for the specified end use DYNEEMA® IN THE VALUE CHAIN 37 UHMwPE Fiber / Tapes Military Personnel, Law Enforcement Heavy Marine, Offshore Wind Energy and Mooring, Aquaculture Outdoor, Footwear, Apparel, Inflatables • Material Science • Formulation • Service INTERMEDIATE MANUFACTURING (CUSTOMERS) OEM / APPLICATION DEMAND TRENDS 38 • Military spending and near-term demand for higher performing personal protection products (like Dyneema®) expected to increase o European NATO members annual defense spend expected to increase by up to 20%(1) o Japan aiming to almost double defense spending over the next 5 years(2) o Accelerated launch of next generation technology in North America • Policy-driven demand for sustainable energy; growth in floating offshore wind farms which require advanced, durable technology o Offshore wind expected to grow at a CAGR of 32% with the level of annual installations quadrupling over the next five years(3) • Continued investment in aquaculture as a sustainable food source(4) • Strong demand in outdoor high performance space across niche consumer applications aligns with 10% growth assumption for Avient’s Composites portfolio Sources: (1) “Funding NATO”, NATO.int (April 1, 2022) (2) “Japan Ruling Party Calls for Defense Spending Boost to 2% of GDP”, WSJ (April 21, 2022) (3) “Global Wind Report 2021”, Global Wind Energy Council (4) “Aquaculture Supports a Sustainable Earth”, NOAA Fisheries 39 A L I G N M E N T W I T H S U S T A I N A B I L I T Y G O A L S PRODUCTS AVIENT’S EXISTING COMPOSITES PORTFOLIO D I V E R S E C A P A B I L I T I E S A N D S O L U T I O N S S E R V I N G M A N U F A C T U R E R S A N D O E M S LFT Tapes Laminates/Panels Shapes Pultrusion Engineered Fibers 40 AVIENT’S COMPOSITES PORTFOLIO SALES AND EBITDA 41 $74 $84 $216 $212 $261 $5 $10 $32 $41 $49 $180 0 50 100 150 200 $- $50 $100 $150 $200 $250 $300 $350 $400 $450 $500 $550 $600 $650 $700 $750 2017 2018 2019 2020 2021 2022E $680 ($ in millions) • Dyneema® acquisition will further improve Composites EBITDA margins to 26% • Dyneema® will complement our existing portfolio with deep formulation expertise, innovative culture and global commercial presence • Composites will continue to be a key growth driver to deliver future revenue growth in excess of GDP (1) Pro forma for the acquisition of Dyneema® (1) SEGMENT DATA U.S. & Canada 50% EMEA 25% Asia 16% Latin America 9% 2021 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 23% Packaging 19% Industrial 16% Building and Construction 10% Telecommunications 4% Energy 2% END MARKET REVENUE (1) Total company sales and adjusted EBITDA of $4,819M and $581M, respectively, include intercompany sales eliminations and corporate costs $2,402M $409M $919M $164M $1,631M $94M Sales EBITDA Distribution Specialty Engineered Materials Color Additives and Inks $581M$4,819M (1) Transportation 11% Healthcare 15% 43 Packaging 34% Consumer 21% Healthcare 8% Industrial 16% Building & Construction 10% Transportation 9% Energy 1% Telecommunications 1% C O L O R , A D D I T I V E S & I N K S 2021 REVENUE | $2 .4 BILLION US & Canada 32% EMEA 40% Asia 21% Latin America 7% END MARKET REGION 44 All charts reflect 2021 financials S P E C I A LT Y E N G I N E E R E D M AT E R I A L S Consumer 27% Healthcare 10% Packaging 7% Telecommunications 16% Transportation 11% Industrial 11% Building & Construction 11% Energy 7% 2021 REVENUE | $919 MILLION END MARKET US & Canada 55% EMEA 25% Asia 20% REGION 45 All charts reflect 2021 financials D I S T R I BU T I O N Healthcare 26% Consumer 23% Packaging 5% Industrial 20% Transportation 16% Building and Construction 8% Energy 1% Telecommunications 1% US & Canada 80% Asia 3% Latin America 17% END MARKET REGION K EY SU PPL IER S 2021 REVENUE | $1 .6 BILLION 46 All charts reflect 2021 financials TOTA L C O M PA N Y R E G I O N A L S A L E S BY END MARKET Packaging 30% Consumer 26%Healthcare 13% Industrial 14% Building & Construction 5% Telecommunications 2% Energy 2% Asia (16% of sales) Transportation 8% Packaging 32% Consumer 13% Healthcare 5% Industrial 17% Building & Construction 12% Telecommunications 5% Energy 4% EMEA (25% of sales) Transportation 12% 47 Consumer 25% Healthcare 19% Packaging 10% Industrial 17% Building & Construction 10% Telecommunications 4% Energy 2% US & Canada (50% of sales) Transportation 13% Packaging 38% Consumer 33% Healthcare 8% Industrial 10% Building & Construction 5% Telecommunications 1% LATAM (9% of sales) Transportation 5% All charts reflect 2021 financials Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

Buyer will make all payments hereunder in cash or in negotiable paper collectible at face value in the funds and at the location indicated on Seller’s invoice; late payments will bear interest at 1.5%/month.

The primary responsibilities of each committee are summarized below and set forth in detail in each committee’s written charter, which is located on our website at www.polyone.com under “Corporate Governance” on our investor relations page. The amounts located in the first row for each Named Executive Officer represent the cash-based award opportunities granted to the Named Executive Officer in 2017 under the 2017 Annual Incentive Program. The amounts located in the second row for each Named Executive Officer represent the cash-settled performance units granted to the Named Executive Officers on February 15, 2017 as part of our 2017 long-term incentive award under the Long-Term Incentive Plan.

The primary responsibilities of each committee are summarized below and set forth in detail in each committee’s written charter, which is located on our website at www.polyone.com under “Corporate Governance” on our investor relations page. The amounts located in the first row for each Named Executive Officer represent the cash-based award opportunities granted to the Named Executive Officer in 2015 under the 2015 Annual Incentive Program. The amounts located in the second row for each Named Executive Officer represent the cash-settled performance units granted to the Named Executive Officers on February 4, 2015 as part of our 2015 long-term incentive award under the Amended Long-Term Incentive Plan.

Buyer shall make all payments hereunder in cash or cash equivalent at face value in the funds, within the time, and at the location indicated on Seller’s invoice. If Buyer resells the Products, Buyer agrees to the Terms and Conditions Regarding Buyer Resale of Avient Products located at www.avient.com/terms.

Buyer shall make all payments hereunder in cash or cash equivalent at face value in the funds, within the time, and at the location indicated on Seller’s invoice. If Buyer resells the Products, Buyer agrees to the Terms and Conditions Regarding Buyer Resale of Avient Products located at www.avient.com/terms.