Property GlasArmor Panel ThermoBallistic Panel Test Method Glass Content 55 wt% 73 wt% n/a 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 Forced Entry Physical Attack Rating - Contraband 3.73 n/a ASTM F-1233-21 Forced Entry Physical Attack Rating - Body 5.04 n/a ASTM F-1233-21 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 3 Contraband was represented by a 1/8 in. diameter rod 4 Body was represented by an 8 in. x 8 in. x 5 in. solid uncompressible rectangular object www.avient.com Copyright © 2025, Avient Corporation.

COLLABO R A T IO N INNOVATION E X C EL LE NCE CORE VALUES INTEG R IT Y HONESTY R E SP EC T PERSONAL VALUES Historic Transformation PolyOne was established in 2000 through the consolidation of two historic companies in the materials industry. Integration and Investment Operating Income ($ in millions) +165% $36 To d ay A t A cq u is it io n $96 Operating Margins +900 bps 11% To d ay A t A cq u is it io n 20% Commercial Resources +40% 243 To d ay A t A cq u is it io n 340 Established Acquisitions (>7 years) 48 Sustainability Report | 2018 Invest to Grow Playbook Safety First! In addition numerous leaders in our company serve on non-profit Boards of Trustees, helping them toward sustainability in their operations and mission to serve. $12M+ For United Way Since 2006 2.0 1.5 1.0 .5 09+22+36+55+83+90+94 2006 2008 2010 2012 2014 2016 2018 $ M il li o n s U .S . d o ll ar s Sustainability Report | 2018 69 Global Vision 2020 PolyOne collaborates with Global Vision 2020, a non-profit organization that provides a system for diagnosing and creating eyeglasses onsite for people in low resource countries with no access to eye care.

Adhesion value of TPE-2 on different substrates TPE-2A TPE-2B Substrate Peel Strength (N/mm) Failure Type Peel Strength (N/mm) Failure Type PP 4.9 Adhesive 3.6 Adhesive PET 1.2 Adhesive 3.9 Adhesive PC/ABS 3.3 Adhesive 4.0 Adhesive ABS - Adhesive 4.3 Adhesive Nylon 1.2 Adhesive 2.7 Adhesive POM 1.1 Adhesive 1.9 Adhesive 6 Figure 3. TPE-1A peel adhesion 0 1 2 3 4 Pe el s tr en gt h: N /m m 190C 205C 220C 235C D040W6 Lexan 141 Cycolac NA1000 3 .1 2 .8 2 .8 2 .6 2 .1 2 .4 2 .4 2 .4 1.9 2 .1 2 .1 1.9 7 Figure 5. T P E-1A T P E-1A T P E-1B T P E-1B 4.1 4.2 2.5 2.3 5.2 5.5 3.2 3.3 TPE-1A, -1B Tensile Properties 0 500 El on ga tio n at b re ak (% ) 7 days at RT 7 days at 70C TPE-1A TPE-1B 574 569 564 546 TPE-1A, -1B Tensile Properties 0 10 20 Te ar s tr en gt h (N /m m ) 7 days at RT 7 days at 70C TPE-1A TPE-1B 22.6 20.2 21.5 21.5

Microsoft PowerPoint - AVNT Q4 2021 Earnings Presentation (v17) - W PEERS x ESI AVIENT CORPORATION F O U R T H Q U A R T E R 2 0 2 1 R E S U L T S A N D 2 0 2 2 F I N A N C I A L G U I D A N C E (NYSE: AVNT) F E B R U A RY 8 , 2 0 2 2 DISCLAIMER 2 Forward-Looking Statements In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. D is t. ) K W R P P G F U L R P M A V Y F M C H U N H X L S C L E C L E M N C E A S H Source: Peer data per Bloomberg market data as of February 15, 2022. OUR VALUATION VERSUS PEERS Avient Specialty Formulators Other Chemical/Specialty Companies 5.4 8.5 10.1 10.0 15.7 15.0 14.2 12.7 10.2 25.0 19.7 17.7 13.2 12.3 10.0 9.9 8.9 8.5 8.3 6.6 A vi en t (2 01 1) A vi en t (2 01 6) A vi en t (2 02 1) A vi en t (T o da y) R P M K W R P P G A V Y F U L A L B E C L H X L A S H F M C B N R E M N U N V R C E S C L H U N Historic Multiple SUMMARY: WHY INVEST IN AVIENT?

A V IE N T C O R P O R A T IO N A N N U A L R E P O R T 2 0 2 4 2024 ANNUAL REPORT Innovator of Materials Solutions AVIENT.COM Our purpose at Avient Corporation (NYSE: AVNT) is to be an innovator of materials solutions that help our customers succeed, while enabling a sustainable world. Committees: 1, 2 A V IE N T C O R P O R A T IO N A N N U A L R E P O R T 2 0 2 4 2024 ANNUAL REPORT Innovator of Materials Solutions AVIENT.COM

Microsoft PowerPoint - Avient Q4 Earnings and 2021 Outlook PRINT AVIENT CORPORATION F O U R T H Q U A R T E R 2 0 2 0 R E S U L T S A N D 2 0 2 1 F I N A N C I A L G U I D A N C E (NYSE: AVNT) F E B R U A R Y 9 , 2 0 2 1 DISCLAIMER 2 Forward-Looking Statements In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Free cash flow conversion calculated as (EBITDA – Capex) / EBITDA Median: 83% Median: 76% HIGH FREE CASH FLOW CONVERSION Avient reflects 2021 estimated EBITDA of $510M and excludes one-time synergy capture CAPEX ($20M) Source: Peer data per Bloomberg market data as of February 5, 2021 85 87 86 86 81 81 59 92 88 81 79 79 79 76 76 75 73 67 67 64 60 7 A vi en t P P G K W R R P M F U L A V Y G C P IF F F M C U N V R H X L E M N B N R E C L C E A S H F O E G R A H U N K R A S C L A L B Source: Peer data per Bloomberg market data as of February 5, 2021 Total Enterprise Value / 2021E EBITDA Our current valuation implies an EBITDA multiple that is significantly below specialty formulator peers and our historic valuations, when the company had considerable exposure to more cyclical and challenging end markets. With the Clariant Masterbatch acquisition and divestment of the PP&S business, our exposure is now concentrated in less-cyclical and high-growth markets, with increased geographic diversification and a more specialized portfolio that can significantly expand EBITDA margins. 24 Avient reflects 2021 estimated EBITDA of $510M OUR VALUATION VERSUS PEERS Avient Specialty Formulators Other Chemical/Specialty Companies 9.5 21.1 13.2 13.2 12.0 12.0 9.7 25.2 23.1 14.7 13.5 12.9 11.0 11.0 11.0 10.2 9.6 9.3 9.3 9.1 8.6 8.3 A vi en t K W R A V Y R P M G C P P P G F U L A L B E C L H X L IF F F M C G R A B N R F O E A S H C E S C L U N V R E M N H U N K R A Median: 11.0xMedian: 12.6x SUMMARY: WHY INVEST IN AVIENT?

D is t. ) K W R R P M P P G A V Y F U L G C P IF F H X L F M C F O E H U N E C L K R A E M N A S H C E S C L G R A A LB Median: 5%Median: 3% Source: Peer data per Bloomberg market data as of April 27, 2021 Avient reflects 2021 estimated revenue of $4,300M and excludes one-time synergy capture CAPEX ($20M) Avient Specialty Formulators Other Chemical/Specialty Companies Free Cash Flow Conversion (1) 2021E (%) Being asset light helps us to generate strong free cash flow that is in line with specialty formulators. Free cash flow conversion calculated as (EBITDA – Capex) / EBITDA Median: 84% Median: 77% HIGH FREE CASH FLOW CONVERSION Avient reflects 2021 estimated EBITDA of $560M and excludes one-time synergy capture CAPEX ($20M) Source: Peer data per Bloomberg market data as of April 27, 2021 87 89 87 86 82 81 76 88 87 84 82 81 78 77 77 77 76 73 70 69 50 19 A vi en t K W R P P G R P M A V Y F U L G C P F M C IF F H X L U N V R E C L A S H C E B N R F O E E M N G R A H U N K R A S C L A L B Source: Peer data per Bloomberg market data as of April 27, 2021 Total Enterprise Value / 2021E EBITDA Our current valuation with updated guidance implies an EBITDA multiple that is below specialty formulator peers and the majority of our chemical peers. With the Clariant Masterbatch acquisition and divestment of the PP&S business, our exposure is now concentrated in less-cyclical and high-growth markets, with increased geographic diversification and a more specialized portfolio that can significantly expand EBITDA margins. 20 Avient reflects 2021 estimated EBITDA of $560M OUR VALUATION VERSUS PEERS Avient Specialty Formulators Other Chemical/Specialty Companies 10.2 17.7 16.0 14.9 14.6 11.6 11.1 26.7 24.0 22.8 14.3 12.7 11.5 11.2 11.1 11.0 10.3 10.1 9.5 9.4 8.3 7.0 A vi en t K W R A V Y R P M P P G G C P F U L A L B H X L E C L IF F F M C B N R A S H G R A F O E S C L E M N U N V R C E K R A H U N Median: 11.1xMedian: 14.8x SUMMARY: WHY INVEST IN AVIENT?

Deflection is dependent on support span distance. 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in .75" Hammerhead Panel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in 1.50" Hammerhead Panel Simply supported beam deflection for Hammerhead™ panels with 5.3 lb/ft3 core density 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in .50" Hammerhead Panel 0.00 0.50 1.00 1.50 2.00 2.50 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in 1.00" Hammerhead Panel 50lb 100lb 150lb 200lb 250lb LOAD CASE Hammerhead™ PETG Laminate Hammerhead™ PETG Laminate * To calculate deflection for different panel widths, use the following formula: Deflection = Chart value* [12 / panel width]. Example: Deflection for 24 inch panel = Chart value *[12 / 24] 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in .50" Hammerhead Panel 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in .75" Hammerhead Panel 0.00 0.50 1.00 1.50 2.00 2.50 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in 1.00" Hammerhead Panel 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in 1.50" Hammerhead Panel Hammerhead™ PETG Laminate Hammerhead™ PETG Laminate Simply supported beam deflection for Hammerhead™ panels with 8.4 lb/in3 core density * To calculate deflection for different panel widths, use the following formula: Deflection = Chart value* [12 / panel width]. Example: Deflection for 24 inch panel = Chart value *[12 / 24] Fixed end beam deflection for Hammerhead™ panels with 8.4 lb/ft3 core density 50lb 100lb 150lb 200lb 250lb LOAD CASE Hammerhead™ PETG Laminate Hammerhead™ PETG Laminate 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 i n c h w id th * Support Distance - in .50" Hammerhead Panel 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in 1.00" Hammerhead Panel 0.00 0.10 0.20 0.30 0.40 0.50 0.60 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in .75" Hammerhead Panel 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 12 18 24 30 36 42 48 54 60 D e fl e c ti o n p e r 12 in c h w id th * Support Distance - in 1.50" Hammerhead Panel * To calculate deflection for different panel widths, use the following formula: Deflection = Chart value* [12 / panel width].

Torres Boonen N°511, Providencia, Santiago, Chile. Este documento ha sido firmado electrónicamente de acuerdo con la ley N°19.799 e incluye sellado de tiempo y firma electrónica avanzada. Para verificar la autenticidad de una representación impresa del mismo, ingrese este código en el sitio web www.diarioficial.cl DIARIO OFICIAL DE LA REPUBLICA DE CHILE Ministerio del Interior y Seguridad Pública V SECCIÓN CONSTITUCIONES, MODIFICACIONES Y DISOLUCIONES DE SOCIEDADES Y COOPERATIVAS Núm. 42.975 | Jueves 10 de Junio de 2021 | Página 1 de 1 Empresas y Cooperativas CVE 1958564 EXTRACTO EDUARDO DIEZ MORELLO, Abogado, Notario Público, Titular de la 34ª Notaría de Santiago, con oficio en Luis Thayer Ojeda N° 359, comuna de Providencia, certifico: Que por escritura pública de fecha 31 de mayo de 2021, bajo el repertorio N° 8.412-2021, ante mí: En junta extraordinaria de accionistas de PERFORMANCE MASTERBATCHES (CHILE) SpA, inscrita a fojas 51.369 N° 25.460 del Registro de Comercio del Conservador de Bienes Raíces de Santiago correspondiente al año 2019 (la “Sociedad”), celebrada con fecha 28 de abril de 2021, Avient Switzerland GmbH, en su calidad de único accionista de la Sociedad, modificó el nombre o razón social de la Sociedad por “Avient Chile SpA”, reemplazando el artículo Primero de los estatutos por el siguiente: “ARTICULO PRIMERO: Se constituye una sociedad por acciones con el nombre de “AVIENT CHILE SpA”.

Glucose Monitoring App Snapshot draft MEDICAL DEVICE OEM C O N T I N U O U S G L U C O S E M O N I T O R I N G S Y S T E M • Adapt to strict processing requirements of a secondary operation put in place to manufacture a new device model • Meet material size and thickness requirements while achieving desired color target • Overcome material unpredictability and sensitivity to heat, light and moisture • Minimize impact of supply chain instability and changes • Offered support for processing under low pressure conditions and at every stage of manufacturing • Performed extensive R&D work to consistently deliver the customer’s color target of a hard-to-achieve light gray • Effectively addressed all material challenges and sensitivities • Provided regular ‘summaries of understanding’ to keep up with changing forecasts and ordering patterns Mevopur™ Pre-color Formulation KEY REQUIREMENTS WHY AVIENT?