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v3.25.1

OTHER RECEIVABLES (Tables) | 12 Months Ended
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Dec. 31, 2024
Notes and other explanatory information [abstract] |
Schedule of other receivables |
Schedule of other receivables |  |  |  |  |  |  |  |  |
|  | December 31, |
|  | 2023 |  |  | 2024 |  |  | 2024 |
|  | CNY |  |  | CNY |  |  | US$ |
Financial assets |  |  |  |  |  |  |  |  |  |  |  |
Deposits |  |  | 3 |  |  |  | — |  |  |  | — |
Others |  |  | — |  |  |  | — |  |  |  | — |
|  |  | 3 |  |  |  | — |  |  |  | — |
Staff advance |  |  | 12 |  |  |  | — |  |  |  | — |
Others |  |  | 3 |  |  |  | 32 |  |  |  | 4 |
|  |  | 15 |  |  |  | 32 |  |  |  | 4 |
Impairment allowance |  |  | — |  |  |  | — |  |  |  | — |
Total |  |  | 18 |  |  |  | 32 |  |  |  | 4 |
Schedule of movements in the loss allowance for other receivables |
Schedule of movements in the loss allowance for other receivables |  |  |  |  |  |  |  |  |
|  | December 31, |
|  | 2023 |  |  | 2024 |  |  | 2024 |
|  | CNY |  |  | CNY |  |  | US$ |
Beginning of the year |  |  | 2,984 |  |  |  | — |  |  |  | — |
Provision for expected credit losses, net |  |  | 6,003 |  |  |  | — |  |  |  | — |
Disposal of PSTT |  |  | (8,987 | ) |  |  | — |  |  |  | — |
End of the year |  |  | — |  |  |  | — |  |  |  | — |

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