Cesa™ Fiber Additives for stain resistance efficacy are non-fluorine additive concentrates developed for incorporation in the yarn during extrusion. KEY BENEFITS Avient’s stain-resistant concentrates provide the following benefits: • Efficient, long-lasting stain release properties with no impact on yarn spinnability • Innovative non-fluorine formulation • Suitable for POY (DTY; ATY) and BCF with processing temperatures up to 300°C • Can be combined with color into a single product for convenience • Compatible with bath-dyeing and piece-dyeing • Developed for spin-dyeing—a waterless one-in- one process to dye and enhance the performance of synthetic fibers • Product guidance and technical assistance from our experts 1.844.4AVIENT www.avient.com Copyright © 2025, Avient Corporation.

Developed in response to the increased need for recycled materials the AF 7210 series of reSound™ REC TPEs incorporates a minimum of 51% recycled content, 37% from post-consumer recycled (PCR) sources, including closed-loop feedstock. KEY CHARACTERISTICS • Contains 51–59% recycled content, with a minimum of 37% from PCR sources, including closed-loop feedstock • Provides comparable performance to virgin TPEs - Good UV stability - Meets VIAQ standards for odor and fogging • Supports compliance with the ELV Directive • Provides a more sustainable alternative to virgin TPE grades and supports a reduction in product carbon footprint (PCF) • Can be injection molded and overmolded onto PP KEY APPLICATIONS The reSound REC TPEs – AF 7210 series has been developed for use in automotive interior applications such as cup holder mats, phone charging mats, peddle covers, boot/trunk lining, HVAC flaps and other center console parts. PRODUCT BULLETIN 1.844.4AVIENT www.avient.com Copyright © 2024, Avient Corporation.

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. For the same reasons, Avient is unable to address the probable significance of the unavailable information. 3 AVIENT OVERVIEW 2023 Financial ResultsCompany Overview Revenue By: 9,300 Employees 102 Manufacturing Sites 20,000+ Customers  Innovating materials and processing solutions to solve our customers’ challenges while enabling a sustainable world  Broad portfolio of technologies with market leading positions and flexibility to anticipate and meet customer needs  Focus is on organic revenue growth and margin expansion, following our successful portfolio transformation $3.14B Revenue $2.36 Adjusted EPS $502M Adjusted EBITDA 16.0% Adjusted EBITDA Margins $186M Adjusted Free Cash Flow U.S. & Canada 64% Specialty Engineered Materials Color Additives and Inks 41% 23% 19% 10% 5% 4% Building & Energy Telecom Geography Segment Industry 2024 Financial Guidance $525 to $530 million Adjusted EBITDA $2.63 to $2.67 Adjusted EPS 4 Industry Sustainability Standards ESG Ratings Performance 1 4 87th 94th percentile Avient CDP Score: A- SUSTAINABILITY PERFORMANCE AND RECOGNITION O CTO BE R 3 1 , 2024 W EB CAS T P RE SE N TATI O N 6 Q3 2024 HIGHLIGHTS • 8.5% organic sales growth driven by broad-based growth across all regions and most end markets in both CAI and SEM segments • Growth stemmed from gaining share, winning new product specifications and restocking in certain end markets • Both segments expanded YoY EBITDA margins by 40 bps each • Adjusted EPS of $0.65, an increase of 14% vs the prior year • Successfully refinanced $650M outstanding senior notes due 2025; extending maturity to 2031 • Increased dividend 5% to $1.08 on an annualized basis; 14th consecutive increase Adj. A reconciliation of these measures to their most directly comparable GAAP measures is provided in the tables below. 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 38.2 $ 0.41 $ 5.1 $ 0.06 Special items, after-tax 6.6 0.07 32.0 0.35 Amortization expense, after-tax 15.0 0.16 15.2 0.16 Adjusted net income / EPS $ 59.8 $ 0.65 $ 52.3 $ 0.57 (1) Per share amounts may not recalculate from figures presented herein due to rounding Three Months Ended Reconciliation to EBITDA and Adjusted EBITDA: 2024 2023 Net income from continuing operations – GAAP $ 38.7 $ 5.1 Income tax expense (benefit) 11.3 (0.1) Interest expense, net 26.9 30.3 Depreciation & amortization 45.1 46.4 EBITDA from continuing operations $ 122.0 $ 81.7 Special items, before tax 9.7 43.2 Interest expense included in special items (1.3) (2.2) Depreciation & amortization included in special items (0.4) — Adjusted EBITDA $ 130.0 $ 122.7 Adjusted EBITDA as a percent of sales 15.9 % 16.3 % 1 2024 2023 Sales: Color, Additives and Inks $ 521.5 $ 486.5 Specialty Engineered Materials 294.6 267.9 Corporate (0.9) (0.7) Sales $ 815.2 $ 753.7 Operating income: Color, Additives and Inks $ 75.5 $ 64.5 Specialty Engineered Materials 36.4 30.3 Corporate (34.7) (60.5) Operating income $ 77.2 $ 34.3 Depreciation & amortization: Color, Additives and Inks $ 21.9 $ 24.6 Specialty Engineered Materials 20.7 20.5 Corporate 2.5 1.3 Depreciation & amortization $ 45.1 $ 46.4 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 97.4 $ 89.1 Specialty Engineered Materials 57.1 50.8 Corporate (32.2) (59.2) Other (expense) income, net (0.3) 1.0 EBITDA from continuing operations $ 122.0 $ 81.7 Special items, before tax 9.7 43.2 Interest expense included in special items (1.3) (2.2) Depreciation & amortization included in special items (0.4) — Adjusted EBITDA $ 130.0 $ 122.7 Adjusted EBITDA as a percent of sales: Color, Additives and Inks 18.7 % 18.3 % Specialty Engineered Materials 19.4 % 19.0 % Year Ended December 31, 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS Net income from continuing operations attributable to Avient shareholders $ 75.8 $ 0.83 Special items, after-tax 79.3 0.86 Amortization expense, after-tax 61.5 0.67 Adjusted net income / EPS $ 216.6 $ 2.36 Adjusted Free Cash Flow Calculation December 31, 2023 Cash provided by operating activities $ 201.6 Capital expenditures (119.4) Free cash flow 82.2 Taxes paid on gain on sale of business 104.1 Adjusted free cash flow $ 186.3 Year Ended December 31, 2023 Sales: Color, Additives and Inks $ 2,007.4 Specialty Engineered Materials 1,138.2 Corporate (2.8) Sales $ 3,142.8 Operating income: Color, Additives and Inks $ 259.9 Specialty Engineered Materials 142.5 Corporate (205.6) Operating income $ 196.8 Depreciation & amortization: Color, Additives and Inks $ 98.3 Specialty Engineered Materials 81.5 Corporate 9.0 Depreciation & amortization $ 188.8 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 358.2 Specialty Engineered Materials 224.0 Corporate (196.6) Other income, net 5.8 EBITDA from continuing operations 391.4 Special items, before tax 114.6 Interest expense included in special items (2.3) Depreciation & amortization included in special items (1.9) Adjusted EBITDA $ 501.8 Adjusted EBITDA as a percent of sales 16.0 % 3 Avient M11 Investor Presentation.pdf IR Deck - AVNT-2024.09.30 (M11) - 11.05.24 11AM.pdf Attachment

Copyright © 2020, Avient Corporation. MAJOR AUTOMOTIVE OEM R O O F R A C K • Impact resistance • UV stability over time • Color match to specific black color • Developed a supply chain agreement to ensure reliable supply and mitigate risk • Provided just-in-time delivery to help the customer keep working capital low and maximize warehouse space • Provided a product that supports sustainability to potentially enhance the marketplace appeal of the customer’s end product Nymax™ REC Recycled Nylon Formulation KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION IMPACT + UV STABILITY LEARN MORE Copyright © 2024, Avient Corporation.

Suitable for a wide range of processing technologies, they demonstrate economy and ease of use for dip coating, molding and casting. KEY CHARACTERISTICS • Ease of conversion from liquid plastisol to fused thermoplastic solid • Available in a range of hardness and colors • Used in molding, casting and dip coating, including hot and cold dipping • Customizable formulations for automotive, healthcare, industrial and other specialty applications to comply with regulatory requirements including FDA, RoHS, REACH, Prop-65, CPSIA and CONEG • Non-phthalate formulations available for healthcare, playground equipment, outdoor furniture and other high-touch applications MARKET AND APPLICATIONS CORE™ Vinyl Plastisols are available for a wide variety of uses, including: • Automotive air filters • Tool handles, grips • Outdoor furniture and playground equipment • Fencing, wire grates • Industrial textiles • Healthcare masks, molds, medical tape, manikins and stethoscopes • Medical cannula • Sound barriers • Seals/barriers for food packaging • Construction coatings • Electrical insulators • Protective caps • Antistatic flooring and mats www.avient.com Copyright © 2020, Avient Corporation.

TURNKEY SYSTEM PLASTIWARD is a robust, customizable and cost-effective turnkey system consisting of: · proprietary taggants integrated directly within the polymer masterbatch · a handheld detector offering instant fake- checking in the field · a secure monitoring platform on smartphone or tablet capturing field inspection data, transmitted in real time COMBINED EXPERTISE At its core, PLASTIWARD brings together SICPA’s trusted expertise in brand protection technologies and processes, and Avient’s recognized expertise in polymer modification with colour and performance additives. The result of a partnership between SICPA and Avient, PLASTIWARD is a prime example of how we enable our customers to focus on their core business as we implement security features— without disrupting their supply chain—at the core of their product. 1.844.4AVIENT www.avient.com Copyright © 2021, Avient Corporation.

Satisfying all these market needs has proven challenging as different color technologies achieved different results that only partially fulfilled them. APPLICATIONS • Automotive textiles and upholstery, e.g., seat covers, liners, carpets • Home textiles, e.g., sofa covers, pillows, curtains • Apparel, e.g., fashion clothing, sportswear BENEFITS • Deep and intense black coloration with high light fastness • Adapted to polyester fibers including recycled grades • Highly efficient formulation to increase processability and reduce costs • Excellent washing fastness for textile products that are frequently washed, e.g., sportswear • Can be customized to achieve the desired intensity PRODUCT BULLETIN Copyright © 2023, Avient Corporation.

Home // Products // Long Fiber Technology Incorporating special additive technologies into long fiber composites can facilitate thermal transfer if heat dissipation capability is needed. This can include technologies such as enhanced UV performance and heat stabilization.

Mevopur™ Healthcare Colorants and Formulations Standard Colors for Healthcare Applications Mevopur™ Healthcare Colorants and Formulations are specifically developed for use in today’s increasingly complex healthcare applications. KEY CHARACTERISTICS • Globally harmonized formulations are manufactured at four ISO 13485 certified medical sites, providing global consistency and increased security of supply • Documented change control available • A range of standard colors eliminates color matching to expedite development time • The portfolio includes compliant colors for use in: - Needle hub applications: ISO 6009 - Ophthalmic container closures (American Academy of Ophthalmology) REGULATORY SUPPORT • A library of pre-tested raw materials including: - ISO 10993-1 and USP biological evaluation - European Pharmacopeia 3.1.3/3.1.5 (polyolefin) - USP (polyethylene) - ICH Q3D elemental impurities • Registered Drug Master File (Type III) and/or Device Master File • Food contact established with FDA/EU* HEALTHCARE APPLICATIONS • Medical devices such as catheters, surgical and dental instruments, and drug delivery devices • Pharmaceutical packaging including vials and bottles • Diagnostics for blood analysis or In Vitro Diagnostics (IVD) PRODUCT BULLETIN & COLOR CARD * FDA/EU compliance information available upon request; exceptions may occur Color Pantone Reference PE Base PP Base Transparent PP Base PEBA Base PC Base Transparent PC Base* ABS Base* White — PE0M176031 PP0M176045 ** AH0M415001 NC0M176058 ** SB0M665206 Yellow 102C PE1M176076 PP1M176060 PP1M176062 AH1M415002 NC1M176058 NC1M176059 SB1M664958 Orange 158C PE2M176044 PP2M176046 ** ** NC2M176044 NC2M664912 SB2M664939 Red 199C PE3M176131 PP3M176111 PP3M176113 AH3M415002 NC3M176116 NC3M176122 SB3M665037 Pink 196C PE3M176130 PP3M176109 ** AH3M415001 NC3M176117 NC3M665052 SB3M665039 Violet 2593C PE4M176023 PP4M176036 PP4M176039 AH4M415001 NC4M176038 NC4M176044 SB4M664978 Light Blue 292C PE5M176155 PP5M176169 ** AH5M415003 NC5M176142 ** SB5M665402 Mid Blue 285C PE5M176154 PP5M176171 PP5M176175 AH5M415002 NC5M176143 NC5M176146 SB5M665404 Dark Blue 288C PE5M176153 PP5M176173 ** ** NC5M176144 ** SB5M665406 Light Green 346C PE6M176128 PP6M176111 ** ** NC6M176118 ** SB6M665070 Bluish Green 3145C PE6M176126 PP6M176115 ** ** NC6M176119 ** SB6M665068 Medium Green 348C PE6M176127 PP6M176113 PP6M176118 AH6M415001 NC6M176120 NC6M176121 SB6M665072 Dark Gray 425C PE7M176066 PP7M176091 PP7M176094 ** NC7M176124 ** SB7M665297 Mid Gray Cool Gray 5C PE7M176067 PP7M176089 ** AH7M415001 NC7M176125 NC7M665175 SB7M665295 Beige 7502C PE8M176048 PP8M176058 ** ** NC8M176058 ** SB8M664871 Brown 463C/731C PE8M176049 PP8M176060 ** ** NC8M176059 ** SB8M664869 Black Black C PL9M176008 PP9M176017 ** ** NC9M176008 NC9M176009 SB9M664896 Colors may vary from actual color shown. Healthcare use limitations apply—see below * Available only in North America ** Available on request Copyright © 2022, Avient Corporation.

RESIDENTIAL BUILDING MANUFACTURER M O D U L A R W A L L C O N S T R U C T I O N • Technical expertise to provide a custom composite panel that meets performance requirements • High strength-to-weight ratio compared to incumbent materials • High impact resistance, durability, and structural integrity • On-site technical support with product development, including rigorous material sampling and testing • Custom-formulated panel structures meeting impact and lightweight requirements • Technical capabilities to provide a solution meeting residential fire testing Polystrand™ Thermoplastic Composite Panels KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION TECHNICAL SUPPORT & CUSTOMIZATION LEARN MORE Copyright © 2024, Avient Corporation.