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v3.21.1

Commitments and contingencies (Tables) | 12 Months Ended
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Dec. 31, 2020
Statement [LineItems] |
Future Minimum Lease Payments | The Group has various lease contracts that have not yet commenced as of December 31, 2019 and 2020. The future lease payments for these non-cancellable lease contracts are as follows:
|  | 31.12.2019 |  |  | 31.12.2020 |  |  | 31.12.2020 |
|  | RMB’000 |  |  | RMB’000 |  |  | US$’000 |
Within 1 year |  |  | 105 |  |  |  | 321 |  |  |  | 50 |
After 1 year but within 5 years |  |  | 85 |  |  |  | 1,628 |  |  |  | 252 |
After 5 years |  |  | — |  |  |  | 71 |  |  |  | 11 |
|  |  | 190 |  |  |  | 2,020 |  |  |  | 313 |

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- Definition Disclosure of operating lease by lessee text block + References No definition available. + Details
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Namespace Prefix: | cyd_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Namespace Prefix: | cyd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration