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OTHER RECEIVABLES (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes and other explanatory information [abstract] |
Schedule of other receivables |
Schedule of other receivables |  |  |  |  |  |  |  |  |
|  | December 31, |
|  | 2022 |  |  | 2023 |  |  | 2023 |
|  | CNY |  |  | CNY |  |  | US$ |
Financial assets |  |  |  |  |  |  |  |  |  |  |  |
Loans to an unrelated company (i) |  |  | 83,600 |  |  |  | — |  |  |  | — |
Deposits |  |  | 790 |  |  |  | 3 |  |  |  | — |
Others |  |  | 1,000 |  |  |  | — |  |  |  | — |
Financials asset |  |  | 85,390 |  |  |  | 3 |  |  |  | — |
Staff advance |  |  | 237 |  |  |  | 12 |  |  |  | 3 |
Others |  |  | 90 |  |  |  | 3 |  |  |  | — |
Total amount |  |  | 327 |  |  |  | 15 |  |  |  | 3 |
Impairment allowance |  |  | (2,984 | ) |  |  | — |  |  |  | — |
Total |  |  | 82,733 |  |  |  | 18 |  |  |  | 3 |
(i) |  | The balance as of December 31, 2022 consisted of a loan in the amount of CNY80,000 (US$11,599) and the corresponding interest receivable amounted to CNY 3,600 (US$521) from Shenzhen Qianhai, a subsidiary of the Company, to an unrelated company, Shenzhen Chaopeng Investment Co., Ltd. The loan was originally provided on June 30, 2021, and will mature in one year. On June 30, 2022, the loan was extended for another year to June 30, 2023. The loan is interest-bearing at a rate of 9% per annum and guaranteed by Shenzhen Feishang Investment Co., Limited, a company unrelated to the Group. During year 2023, the loan was derecognized as it was part of the wastewater treatment segment which was disposed by the Company (Note 3).
Schedule of movements in the loss allowance for other receivables |
Schedule of movements in the loss allowance for other receivables |  |  |  |  |  |  |  |  |
|  | December 31, |
|  | 2022 |  |  | 2023 |  |  | 2023 |
|  | CNY |  |  | CNY |  |  | US$ |
Beginning of the year |  |  | 239 |  |  |  | 2,984 |  |  |  | 423 |
Provision for expected credit losses, net |  |  | 2,745 |  |  |  | 6,003 |  |  |  | 848 |
Disposal of PSTT |  |  | — |  |  |  | (8,987 | ) |  |  | (1,271 | )
End of the year |  |  | 2,984 |  |  |  | — |  |  |  | — |

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