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Treasury shares (Tables) | 12 Months Ended
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Dec. 31, 2024
Disclosure of Treasury Shares [abstract] |
Summary of Treasury Shares |
|  | 2023 |  |  | 2024 |  |  | 2024 |
|  | RMB’000 |  |  | RMB’000 |  |  | US$’000 |
At January 1 |  |  | — |  |  |  | — |  |  |  | — |
Addition |  |  | — |  |  |  | 285,561 |  |  |  | 39,806 |
At December 31 |  |  | — |  |  |  | 285,561 |  |  |  | 39,806 |

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