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OTHER RECEIVABLES (Details 1) ¥ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 USD ($) | Dec. 31, 2023 CNY (¥) | Dec. 31, 2022 CNY (¥)
Notes and other explanatory information [abstract] |  |  |
Beginning of the year | $ 423 | ¥ 2,984 | ¥ 239
Provision for expected credit loss, net | 848 | 6,003 | 2,745
Disposal of PSTT | (1,271) | (8,987) |
End of the year |  |  | ¥ 2,984

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