POWER CABLE PRODUCER C A B L E I N S U L A T I O N • Easy to process • To pass CPR fire test • Low smoke and toxicity values on smoke test • Possibilities for low-voltage cables • Cable insulation that passed G18 of the CEI EN 50363-0: 2015 standard • Offered Sioplas technology for cross-linking providing ambient curing • Delivered new cable design possibilities for low- voltage cables while offering easy processing • Processed more efficiently than market- established elastomeric technology which is processed using a CV line • Provided cable insulation that passes the hot set test at 250°C ECCOH XL Cross-Linkable Solutions 8054 KEY REQUIREMENTS WHY AVIENT?

LEADING PIPE OEM P I P E A N D C O N D U I T • Decrease ergonomic stressors for employees (i.e., continuous lifting of 55 lbs. bags) and eliminate transport of raw material up stairs or on to mezzanine to reduce potential for injuries during material handling • Provide a dust-free raw material handling and manufacturing environment • Alleviate employee health concerns by providing a cleaner production floor and lower levels of airborne TiO2 dust • Maintain an OSHA compliant facility • Automated a raw material handling solution that included no lifting, cutting, or tearing of raw material packaging • Eliminated fine TiO2 and pigment-related particles, providing cleaner air in manufacturing areas • Provided a safe and sustainable environment by helping reduce workplace dust exposure • Enabled employee redeployment to other activities, optimizing use of labor ColorMatrix™ Liquid Colorant and Dosing Equipment KEY REQUIREMENTS WHY AVIENT?

Certificate of Approval Certificate n°: FR079697-1 Contract n°: 15701960 Revision date: 22 February 2023 Laurent CROGUENNEC - President Local office: Bureau Veritas Certification France Le Triangle de l'Arche - 9 Cours du Triangle - 92937 Paris La Défense Further clarifications regarding the scope of this certificate the applicability of the management system requirements may be obtained by consulting the organization.

Pipe Mfg Liquid Color App Snapshot final (1) PIPE MANUFACTURER P R E S S U R E / N O N - P R E S S U R E P I P E S • Provide a safe and compliant manufacturing environment for all team members • Improve weatherability and outdoor exposure longevity in field and yard environments • Increase color consistency and enhance pipe appearance • Reduce scrap rates and eliminate order rejections • Meet required compliance and regulatory approvals • Incur no capital expense for dosing & handling equipment • Provided a customer-centric approach focused on gaining operational efficiencies to support an improved manufacturing environment • Offered formulation expertise and problem-solving experience to upgrade pipe performance • Attained finely dispersed TiO2 and color distribution throughout the pipe, meeting quality requirements while reducing scrap rates • Delivered solutions with extensive NSF, UL and pipe industry approvals • Supplied dosing equipment to eliminate capital costs, backed with on-call technical support ColorMatrix™ Liquid Colorant + Dosing Equipment KEY REQUIREMENTS WHY AVIENT?

POLYONE FRANCE TOSSIAT 43, PLACE DE LA GARE 01250 TOSSIAT FRANCE Bureau Veritas Certification France certify that the Management System of the above organization has been audited and found to be in accordance with the requirements of the management system standard detailed below: Standard ISO 14001:2015 Scope of certification THE DESIGN AND MANUFACTURE OF COLOUR AND ADDITIVE CONCENTRATES FOR THERMOPLASTICS Certification/Recertification Cycle Start Date: 03 May 2023 Subject to the continued satisfactory operation of the organization’s Management System, this certificate expires on: 02 May 2026 Expiry date of previous cycle: NA Certification/Recertification Audit date: 08 March 2023 Original Cycle Start Date: 15 July 2011 Certificate n°: FR081968-1 File n°:15608678 Revision date:24 April 2023 Laurent CROGUENNEC - President Local Office: Bureau Veritas Certification France Le Triangle de l'Arche - 9 Cours du Triangle - 92937 Paris La Défense Further clarifications regarding the scope of this certificate the applicability of the management system requirements may be obtained by consulting the organization.

TIER 1 SUPPLIER S T E E R I N G C O L U M N B R A C K E T & L E V E R • Automotive OEM lightweighting initiative • Trial alternative materials to replace aluminum support bracket and overmolded steel adjustment lever • Up to 5,200 Newton load requirements with minimal deflection allowance • High stiffness & strength to function similar to metal • Achieved 50% weight reduction with metal to composite conversion • Provided structural design & fiber orientation consultations along with CAE analysis to predict performance met requirements • Shortened manufacturing lead time by supplying injection molded material solution Complēt Long Carbon Fiber Nylon Composite KEY REQUIREMENTS WHY AVIENT?

AUTOMOTIVE OEM I N T E R I O R D O O R P A N E L • Available for multiple resins and approved OEM colors • Maintain performance characteristics of traditional raw materials that use conventional carbon black • Pass REACH and RoHS requirements • Retain color consistency and stability • Provide a Product Carbon Footprint (PCF) calculation that aligns with ISO 14067:2018 • Provided recycled content formulations that met all design and engineering goals while achieving sustainability targets • Provided effective alternative to materials using virgin carbon black • Achieved color stability under xenon arc and TUV methodology • Supplied necessary PCF calculation certified by TÜV Rheinland and aligning with ISO 14067 requirements OnColor™ REC Polymer Colorants KEY REQUIREMENTS WHY AVIENT?

Airline components manufacturer AIRLINE COMPONENTS MANUFACTURER C A B I N I N T E R I O R P A R T S • Stable, consistent coloration of high temperature polymers • Improved mechanical strength, superior impact performance and resistance • Robust chemical resistance from cleaning chemicals, oil, and fats • Meet current environmental performance standards (temperatures and user interface) • Regulatory flame retardance performance • Delivered consistent distribution and dispersion in high-temperature polymers, resulting in improved mechanical properties and performance • Maintained efficient processing and waste reduction with shorter lead times • Offered regulatory support to help meet requirements • Allowed minimum order quantities as low as 5kg (10lbs) for custom color solutions requested by specific airlines KEY REQUIREMENTS PERFORMANCE + EFFICIENCY WHY AVIENT?

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?