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CONTRACT ASSETS (Details 1)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2023
USD ($)
Dec. 31, 2023
CNY (¥)
Dec. 31, 2022
CNY (¥)
Beginning of the year $ 104 ¥ 733 ¥ 562
Provision for expected credit loss, net 501 3,545 171
Disposal of PSTT (605) (4,278)
End of the year ¥ 733