Microsoft PowerPoint - AVNT M11 Investor Presentation AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) N OV E M B E R 2 0 2 4 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. 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; • Disruptions or inefficiencies in our supply chain, logistics, or operations; • Changes in laws and regulations in jurisdictions where we conduct business, including with respect to plastics and climate change; • Fluctuations in raw material prices, quality and supply, and in energy prices and supply; • Demand for our products and services; • 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 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; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including the implementation of a cloud-based enterprise resource planning system, S/4HANA; • 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, geopolitical conflicts and any recessionary conditions; and • Other factors described in our Annual Report on Form 10-K for the year ended December 31, 2023 under Item 1A, “Risk Factors.” EBITDA $130 million +6% (+7% ex FX)Net Sales $815 million +8% (+8.5% ex FX) Net Sales $815 million +8% (+8.5% ex FX) Q 3 2024 R ES U LT S TOTAL COMPANY $754 $815 $123 $130 (in millions) $0.57 (in millions) Adjusted EBITDA Adjusted EPS 8 + 8% (+8.5% excluding FX) + 6% (+7% excluding FX) + 14% (+16% excluding FX) Sales 9 Q3 2024 RESULTS – ORGANIC REVENUE GROWTH BY REGION VS PY 9 +9% +5% +11% +27% Avient ex.

UTG® HUNTING & SHOOTING SPORTS G U N M A G A Z I N E H O U S I N G • Good dimension stability with low warpage at different temperature ranges (70˚C, room temperature, -40˚C) • Good appearance with less glass fiber exposure • Provided durable and impact-resistant glass fiber reinforced formulation with excellent surface finish and good dimensional stability for smooth operation • Passed all temperature durability and drop tests to confirm use in outdoor environments • Collaborated with customer via technology services to accelerate product development Bergamid™ Customized Polyamide Formulation KEY REQUIREMENTS WHY AVIENT?

CONCRETE REINFORCEMENT I N F R A S T R U C T U R E R E P A I R • Alternative to steel for reduced weight and improved corrosion resistance • Surface modification capabilities to improve concrete adhesion • Superior strength-to-weight ratio • Durable, long-lasting performance to extend service life • Provided peel ply and other surface modification capabilities that comply with specific CA regulations and allowed for better adhesion with concrete • Performed with higher strength-to-weight ratio than typical steel alternatives • Prolonged service life by resisting corrosion and dampening vibration Glasforms™ Carbon Fiber Composites KEY REQUIREMENTS WHY AVIENT?

DIVING BOARD SPRING D I V I N G B O A R D S P R I N G POOL DECK EQUIPMENT MANUFACTURER • Non-corrosive alternative to steel springs to prevent rust, degradation and staining of pool decks • Flexible and durable to prolong product life • Provided a corrosion-proof composite material to prevent rust stains on pool decks • Delivered a custom-shaped compression molded spring capable of deep deflection and high fatigue resistance for extended product life • Reduced weight by 75% compared to steel, resulting in lower shipping and installation costs Gordon Composites™ Molded Unidirectional Thermoset Barstock KEY REQUIREMENTS WHY AVIENT?

DATA STORAGE UNIT MANUFACTURER D A T A S T O R A G E C A R R I E R • Excellent dimensional stability • Good mechanical properties with excellent wear resistance • Flame retardant requirement – FRv0 compliance • UL certification • Provided a customized formulation to meet application-specific lubricity, physical and thermal requirements • Delivered on short lead times to help customer manage working capital LubriOne™ CY1000-000/5T FR V0 BLK001 Formulation KEY REQUIREMENTS WHY AVIENT?

LubriOne_Autoinjector Pen _Application snapshot_0419 AUTO-INJECTOR PEN OEM P L U N G E R S C R E W • Reduce friction and improve durability • Good strength and stiffness • Dimensional stability • Formulated a self-lubricating material to meet injection accuracy requirement • Improved the user experience by improving injector’s wear resistance • Achieved consistent dimensional stability and properties LubriOne™ Internally Lubricated Formulation KEY REQUIREMENTS WHY AVIENT?

LEADING OUTDOOR PRODUCTS OEM P R O T E C T I V E P H O N E C A S E • Alternative to traditional PC/ABS for improved toughness and chemical resistance • Substrate must have improved bondability to a protective TPE overmold • Looking for a differentiated “feel” • Offered a proven expertise in selecting the right combination of substrate polymer, TPE for overmolding, and color concentrate for optimal processing and performance • Provided custom solution after collaborating with molders and OEM through on-site trials and troubleshooting support • Enabled the customer to expand their offering for the outdoor consumer market • Custom Nymax™ PA6 Formulation KEY REQUIREMENTS WHY AVIENT?

DIFAS T O O T H B R U S H H A N D L E • Replace current polymer with a more sustainable solution • Excellent surface finish with multiple color options • Processed using current molding equipment and machinery • Used formulation expertise to develop a custom formulation that met critical quality parameters and enabled customer to use existing molding equipment • Enabled customer to work towards sustainability goals and bring a competitive solution to the market • Enhanced the marketplace appeal of the end product with colorability of the material Maxxam BIO Bio-based Polyolefin Formulations KEY REQUIREMENTS WHY AVIENT?

INCIPIO P H O N E C A S E • Customized a post-consumer recycle (PCR) grade formulated with 30% recycled content that delivered similar performance to a prime PC grade • Achieved high yield rate through strict quality control over recycled products • Offered RoHS and REACH compliant solution to support applications with regulatory requirements reSoundTM R PC Recycled Material WHY AVIENT?

S U R G I C A L T O R Q U E W R E N C H SURGICAL DEVICE MANUFACTURER • Excellent wear resistance and lubricity • Easy-to-mold • Good chemical resistance, excellent disinfection performance • Dimensional stability • Formulated a specialty thermoplastic that retained physical properties and dimensional stability under various testing conditions • Provided a custom solution faster than competitors to support accelerated speed to market Edgetek™ Engineered Polymer Formulation KEY REQUIREMENTS WHY AVIENT?