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Earnings per share (Tables) | 12 Months Ended
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Dec. 31, 2024
Earnings per share [abstract] |
Summary of Earnings Per Share | Basic earnings per share The calculation of basic earnings per share is based on:
|  | 31.12.2022 |  |  | 31.12.2023 |  |  | 31.12.2024 |  |  | 31.12.2024 |
|  | RMB’000 |  |  | RMB’000 |  |  | RMB’000 |  |  | US$’000 |
Profit attributable to equity holders of the Company |  |  | 218,581 |  |  |  | 285,518 |  |  |  | 323,055 |  |  |  | 45,033 |
Weighted average number of ordinary shares * |  |  | 40,858,290 |  |  |  | 40,858,290 |  |  |  | 39,325,763 |  |  |  | 39,325,763 |
Diluted earnings per share The weighted average number of ordinary shares adjusted for the effect of unissued ordinary shares under the Share Option Scheme is determined as follows:
|  | 31.12.2022 |  |  | 31.12.2023 |  |  | 31.12.2024 |
Weighted average number of shares issued, used in the calculation of basic earnings per share |  |  | 40,858,290 |  |  |  | 40,858,290 |  |  |  | 39,325,763 |
Diluted effect of share options |  |  | — |  |  |  | — |  |  |  | — |
Weighted average number of ordinary shares adjusted for effect of dilution |  |  | 40,858,290 |  |  |  | 40,858,290 |  |  |  | 39,325,763 |
* The weighted average number of ordinary shares takes into account the weighted average effect of changes in treasury shares transactions during the year.

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- Definition The disclosure of earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2024-01-01 -Paragraph 66 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=33&code=ifrs-tx-2024-en-r&anchor=para_66&doctype=Standard -URIDate 2024-03-27 + Details
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