| BDO | 18-Jul-25 | | | |
| Ernst & Young (Hong Kong) | 30-Jun-21 | | | |
| Ernst & Young | | 01-Jul-25 | | There are certain limits to the number of years for which an accounting firm may continuously undertake financial auditing work in respect of a central state-owned enterprise and its subsidiaries. As the company is a subsidiary of CNPGC and subject to the rotation requirements, accordingly, E&Y has retired as the auditor of the Company at the conclusion of the AGM. |
| Ernst & Young | | 29-May-25 | | As disclosed in previous announcement, E&Y will retire as the auditor at the conclusion of the AGM upon the expiration of its current term of office and will not be re-appointed. |
| Deloitte Hong Kong | 28-Jun-16 | 30-Jun-21 | | Historical transition (details not available in archive) |
| KPMG (Hong Kong) | 19-Mar-93 | 28-Jun-16 | | Historical transition (details not available in archive) |
