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Deferred grants (Tables) | 12 Months Ended
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Dec. 31, 2024
Deferred Grant [Abstract] |
Summary of Deferred Grants |
|  | 31.12.2023 |  |  | 31.12.2024 |  |  | 31.12.2024 |
|  | RMB’000 |  |  | RMB’000 |  |  | US$’000 |
At January 1 |  |  | 489,788 |  |  |  | 459,958 |  |  |  | 64,116 |
Received during the year |  |  | 145,330 |  |  |  | 182,232 |  |  |  | 25,402 |
Grant disbursed to partner of joint project |  |  | (16,423 | ) |  |  | (25,450 | ) |  |  | (3,547 | )
Released to consolidated statement of profit or loss |  |  | (59,818 | ) |  |  | (121,893 | ) |  |  | (16,991 | )
Reclassification to other payables |  |  | (98,919 | ) |  |  | — |  |  |  | — |
At December 31 |  |  | 459,958 |  |  |  | 494,847 |  |  |  | 68,980 |
Current (Note 22) |  |  | 8,064 |  |  |  | — |  |  |  | — |
Non-current |  |  | 451,894 |  |  |  | 494,847 |  |  |  | 68,980 |
|  |  | 459,958 |  |  |  | 494,847 |  |  |  | 68,980 |

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- Definition Deferred Grant. + References No definition available. + Details
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Namespace Prefix: | ck0000932695_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Disclosure of detailed information about government grants [text block] + References No definition available. + Details
Name: | ck0000932695_DisclosureOfDetailedInformationAboutGovernmentGrantsExplanatory
Namespace Prefix: | ck0000932695_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration