PREPAYMENTS AND OTHER CURRENT ASSETS, NET (Tables)

12 Months Ended

Dec. 31, 2019

PREPAYMENTS AND OTHER CURRENT ASSETS, NET

Schedule of prepayments and other current assets

Prepayments and other current assets are as follows:

	December 31,	December 31,	December 31,
	2018	2019	2019
	RMB	RMB	US$
			(Note 3)
Employee advances	2,158,987	1,648,197	236,749
Prepayments and deposits	693,111	1,488,463	213,804
Input VAT recoverable	1,448,075	1,441,700	207,087
Refundable withholding tax	—	1,297,016	186,305
Other receivables, net of allowance for doubtful accounts of  RMB 20,770,928 and RMB 5,343,427  as of December 31, 2018 and 2019, respectively	1,848,614	2,973,158	427,067
	6,148,787	8,848,534	1,271,012