Silcosperse LM dispersions can also be combined with colorants without affecting the laser marking shade or effect. KEY CHARACTERISTICS • Provides laser marking options of silicone materials • Eliminates the needs for etching and embossing • Faster and cleaner than pad printing • High contrast, permanent markings • Mechanical properties of the silicone matrix are maintained • Compatible with various types of lasers • Chemically resistant • Available in pre-colored or natural MARKETS AND APPLICATIONS Silcosperse LM Laser Marking additive dispersions are suitable for a variety of applications within industries such as: • Consumer Goods • Electronics • Healthcare • Industrial • Transportation • Wire & Cable Typical applications and purposes include: • Traceability, UPC bar-coding, branding • Unique Device Identification (UDI), medical device ID’s • Serialization for pharmaceutical packaging • Safety taggants & equipment • Automotive components • Wire & cable part numbers or gauge size www.avient.com Copyright © 2020, Avient Corporation.

S ee S p e c if ic I n s tr u c ti o n s o n p ag e 3. 1 Name (as shown on your income tax return). The TIN provided must match the name given on line 1 to avoid backup withholding. Note: If the account is in more than one name, see the instructions for line 1.

Boundaries of the reporting company GHG emissions covered by the verification: • Operational Control • Global Exclusions: • Fugitive refrigerants from units While R-22 is not one of the Kyoto Protocol greenhouse gases and falls outside the defined verification boundary of Scopes 1, 2, and 3, the reported emissions were included in the inventory totals. Verification Opinion: Based on the verification process and procedures conducted to a limited assurance level of the GHG emissions statement shown above, Apex found no evidence that the GHG emissions statement: • is not materially correct and is not a fair representation of the GHG emissions data and information; and • has not been prepared in accordance with the WRI/WBCSD GHG Protocol Corporate Accounting and Reporting Standard (Scope 1 and 2), and WRI/WBCSD Greenhouse Gas Protocol Corporate Value Chain Accounting and Reporting Standard (Scope 3).

www.fojas.cl Pag: 1/1 Pag: 1/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 2/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 3/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 4/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 5/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 6/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 7/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 8/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 9/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 10/11 Certificado Nº 123456880196 Verifique validez en http://www.fojas.cl Pag: 11/11 2021-05-31T12:52:48-0400 Santiago - Chile EDUARDO JAVIER DIEZ MORELLO Notario Publico Eduardo_Diez_Morello

1400 Ravello Drive, Katy, TX, 77449-5164, USA - TEL: +1 281-396-1000. www.dnv.com Page 1 of 2 MANAGEMENT SYSTEM CERTIFICATE Certificate no.: 11229-2006-CHN-IATF IATF Certificate No: 0573810 Valid: 21 May 2025 – 20 May 2028 This is to certify that the management system of PolyOne - Suzhou, China EM Sector, 77 Shenggang Street, Suzhou Industrial Park, Suzhou, Jiangsu, China 215024 (USI: CF4943) and, if applicable, the remote supporting locations as mentioned in the Appendix accompanying this Certificate has been found to conform to the Quality Management System standard: IATF 16949:2016 This certificate is valid for the following scope: DESIGN AND MANUFACTURE OF PLASTIC COMPOUNDING MATERIAL EXCLUSION: NONE http://www.dnv.com Certificate no.: 11229-2006-CHN-IATF IATF Certificate No: 0573810 Place and date: Katy, TX, 22 May 2025 Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid. ACCREDITED UNIT: DNV Business Assurance USA Inc., 1400 Ravello Drive, Katy, TX, 77449-5164, USA - TEL: +1 281-396-1000. www.dnv.com Page 2 of 2 Appendix to Certificate PolyOne - Suzhou, China Remote Support Locations included in the certification are as follows: Site Name Site Address RSL Activities Certification Body Avient China Co., Ltd.

Date Of Certification: 11 December 2024 Date Of Expiration: 10 December 2027 IATF Certificate N°: 0558656 Bureau Veritas Certification Certificate No: FR094003 - IATF Revision: 1 For Bureau Veritas Certification Holding, Tour ALTO, 4 place des saisons, 92400 COURBEVOIE – France (The official document is in English. Any translations of this document shall be used for reference only.) 1/2 Certificate of Approval AWARDED TO PolyOne France Tossiat Route de la vavrette, 01250, Tossiat - France IATF USI: LWZS4P Bureau Veritas Certification certify that the Quality Management System of the above organisation has been audited and found to be in accordance with the requirements of IATF 16949 - FIRST EDITION and the applicable customer specific requirements SCOPE Design and manufacturing PERMITTED EXCLUSION(S) None PRODUCT(S) DELIVERED colour with additive concentrates for thermoplastic resins and speciality compounds obtained by mixing and extrusion https://e-cer.bureauveritas.com/68LJQE0ZV0CO6I7YW0YSXOUMV9WWROQPHPI2AOHRRLFFVRAVTFVZGXKWIE3TOWLTTKEWCPQB9UNAPXHH6T0HXOMUEDVYPRPJLEXBBTKQYPBRICYOKY143TECQ5UMHGA3JX Date Of Certification: 11 December 2024 Date Of Expiration: 10 December 2027 IATF Certificate N°: 0558656 Bureau Veritas Certification Certificate No: FR094003 - IATF Revision: 1 For Bureau Veritas Certification Holding, Tour ALTO, 4 place des saisons, 92400 COURBEVOIE – France (The official document is in English.

Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1) STAN-TONE DB-15597 HI LITE BLUE

Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1) STAN-TONE DB-15597 HI LITE BLUE

Shipment Notification - under "Material Header" MSDS - labeled as the "Product Number" (in Section 1) STAN-TONE DB-15597 HI LITE BLUE

To participate in the audio-only portion of the call, dial 1-844-835- 7433 (domestic) or 1-914-495-8589 (international) and provide conference ID number 4774915. To listen to this recording, dial 1-855-859- 2056 (domestic) or 1-404-537-3406 (international) and provide conference ID number 4774915. Rose Vice President, Corporate Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com NEWS RELEASE