RADIATION PROTECTION OEM P E R S O N A L P R O T E C T I O N A P R O N S • Enhanced performance and compatibility with other materials being used during production • Improved durability in various environments • Onsite technical and processing support • Formulations in clear, neutral and black shades • Formulated a plastisol solution for better dispersion of customer’s raw materials and enhanced compatibility with pigments being used • Provided superior indoor and outdoor performance for the end application • Offered onsite support to help streamline processing • Delivered a range of colors to meet brand requirements CORE™ Vinyl Plastisols KEY REQUIREMENTS WHY AVIENT?

TOP SPEAKER MANUFACTURER W A T E R P R O O F S P E A K E R G A S K E T • Provide good sealing properties • Protect from water and dust • Reduce production time and costs • Increase design freedom • Provided a low compression set TPE with IP67 ingress protection • Easily prevented ingress of dust and water • Decreased cycle times and reduced overall manufacturing costs • Increased design freedom with overmolding Versaflex™ CE 3120-40 Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT?

ENERGY STORAGE OEM A Q U E O U S B A T T E R Y G A S K E T • Sealing performance from -40 to 110°F • Ability to flow in a long, thin seal design • Chemical resistance to a proprietary electrolyte solution • Natural color • Provided a chemically resistant TPE that outperformed competitive TPE and thermoplastic rubber in rigorous customer testing • Offered material expertise and education to empower an informed material decision • Enabled OEM to model and evaluate sealing performance via design support and data files • Met global production needs through material consistency and local technical support Dynaflex™ Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT?

REFORM DESIGN LAB B I O - B A S E D D E S I G N F U R N I T U R E • Matt black color in cellulose fiber filled PLA • 3D-printable material • Possible outdoor use • Fast development to adapt to online requests • Developed custom products that fulfill color, appearance, UV stabilization and material requirements • Provided fast support to answer evolving online demands • Offered small and flexible quantities and suggestions for further colors OnColor™ custom masterbatch and engineered material KEY REQUIREMENTS WHY AVIENT?

GLOBAL FITNESS BRAND R E S I S T A N C E B A N D • Soft material (25-30 Shore A durometer) • Grippy feel • Good colorability • Compatible with injection molding • Developed a custom-made TPE with excellent rebound resilience, even after 45,000 stretches • Replaced thermoset rubber with a recyclable material • Supported higher production efficiency to reduce total cost Versaflex Thermoplastic Elastomers KEY REQUIREMENTS WHY AVIENT?

AVIENT CORPORATION P R O F O R M A F I N A N C I A L S F O R D Y N E E M A A C Q U I S I T I O N A N D D I S T R I B U T I O N A S D I S C O N T I N U E D O P E R A T I O N S (NYSE: AVNT) S E P T E M B E R 2 7 , 2 0 2 2 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.

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

PROFILE/SHEET EXTRUDER R A I L S A N D K I C K P L A T E S • Convert existing PVC profile and sheet rails and kick plates to polyolefin resin to meet Class A fire safety (ASTM E84) • Provide a system that meets healthy building certifications and approvals • Utilize a more sustainable flame retardant technology, removing brominated or halogenated flame retardants from the environment • Achieve non-compromising performance in aesthetics, impact, dimensional stability, CLTE, and E84 testing • Provided broad flame retardant platform, backed by extensive application and industry expertise, to meet global flammability standards • Has largest UL94 recognized Prospector membership with HB, V-0, V-1, V-2 and 5VA/5VB ratings, and broad glow wire performance products • Included in-house UL certified labs and manufacturing locations to perform UL94 material sampling and testing • Supported application development to meet fire safety standards, address current or emerging healthy building codes, smart home requirements, and LEED credits • Offered custom formulations in small lot quantities Cesa™ Flam Non-Halogen Flame Retardants KEY REQUIREMENTS WHY AVIENT?

L’ORÉAL R E D K E N S H A M P O O B O T T L E S • Ensure global color consistency across all Redken PCR packaging in order to launch in North America and Europe at the same time • Shorten time to launch by simplifying decision making process and avoiding lengthy lab trials • Ability to transition to high levels of PCR, and to facilitate transfer from one PCR to another • Solution that works with mixed grades of PCR, both rPET and polyolefins • Created a process with L’Oréal to overcome PCR coloring challenges and simplify recycled resin coloration for global consistency • Helped L’Oréal towards its objective to have 100% of packaging plastics to be either from recycled or bio-based sources • Achieved a perfect color match on the first try in 8 out of 10 cases PCR Color Prediction Service KEY REQUIREMENTS WHY AVIENT?

T I G H T B U F F E R I N G E L - F I L L E D L O O S E T U B E F O R A E R I A L C A B L E S GLOBAL CABLE MANUFACTURER • Operating temperature from -40°C to 70°C • High gel resistance • Low shrinkage • Stripability for easy installation • Good flame retardancy • Developed a formulation with good thermal behaviour and low shrinkage • Enabled a greater range of operating temperatures giving the customer the flexibility of using the same cable design in a range of different climates • Provided superior gel resistance increasing life time of the cable • Utilized simulation service to optimize customer tooling and extrusion output ECCOH™ 5806 Formulation KEY REQUIREMENTS WHY AVIENT?