Siemens AG

• Siemens Certification Authority / Trust Service Provider (TSP) • Certificate Management Service for products and solutions (central and infrastructure service) • Digital Signature Service for products and solutions Consisting of: Root-CAs ZZZZZZA1 Siemens Root CA V3.0 2016 Intermediate-CA ZZZZZZD0 Siemens Intermediate CA 2021 Issuing-CAs See the annex of this Certificate. An audit of the certification service, documented in a report, provided evidence that the requirements of the following specification have been fulfilled. The Audit was conducted on 15 February 2024 to 26 February 2024 covering the audit period 27 February 2023 to 23 February 2024. It was a full-surveillance period-of-time audit covering all aspects of the standard performed by the lead auditor Mr. Jens Nicolaysen. ETSI EN 319 401 V2.3.1 ETSI EN 319 411-1 V1.4.1 S/MIME Baseline Requirements V1.0.2

• Siemens Certification Authority / Trust Service Provider (TSP) • Certificate Management Service for products and solutions (central and infrastructure service) • Digital Signature Service for products and solutions Consisting of: Root-CAs ZZZZZZA1 Siemens Root CA V3.0 2016 Intermediate-CA ZZZZZZD0 Siemens Intermediate CA 2021 Issuing-CAs See the annex of this Certificate. An audit of the certification service, documented in a report, provided evidence that the requirements of the following specification have been fulfilled. The Audit was conducted on 15 February 2024 to 26 February 2024 covering the audit period 27 February 2023 to 23 February 2024. It was a full-surveillance period-of-time audit covering all aspects of the standard performed by the lead auditor Mr. Jens Nicolaysen. ETSI EN 319 401 V2.3.1 ETSI EN 319 411-1 V1.4.1 S/MIME Baseline Requirements V1.0.2