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Client Directory certificate

ISO/IEC 27001:2022

Hong Kong Telecommunications (HKT) Ltd.
Security Operation Center
11/F, Lai Chi Kok Engineering Centre II
4 Yuet Lun Street
Lai Chi Kok
Hong Kong

Certificate Number: IS 674921
Scope: The provision of cyber security monitoring services to customers in security operation centre. This is in accordance with the statement of applicability V2.5, dated 16 July 2025.

Original Registration Date	Effective Date	Last Revision Date	Expiry Date
2018-06-23	2024-06-23	2025-07-25	2027-06-22

Site Name	Site Address	Certificate/License number	Standard/Scheme number or name
Hong Kong Telecommunications (HKT) Ltd.	Security Operation Center 11/F, Lai Chi Kok Engineering Centre II 4 Yuet Lun Street Lai Chi Kok Hong Kong	IS 674921	ISO/IEC 27001:2022
Hong Kong Telecommunications (HKT) Ltd.	Security Operation Center 9/F, Ngau Tau Kok Engineering Centre 7 Siu Yip Street Ngau Tau Kok Hong Kong	IS 674921	ISO/IEC 27001:2022