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ADVANCES TO SUPPLIERS (Tables)

12 Months Ended

Dec. 31, 2022

ADVANCES TO SUPPLIERS

Summary of advances to suppliers

Advances to suppliers are as follows:

​

​	​	​	​	​	​	​
​		December 31,		December 31,		December 31,
​		2021		2022		2022
​	​	RMB	​	RMB	​	US$
​	​	​	​	​	​	(Note 3)
Other		2,781,139	​	30,345	​	4,400
​		2,781,139	​	30,345	​	4,400

​

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Schedule of Advances to Suppliers [Table Text Block]

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