Advance to Suppliers (Tables)

6 Months Ended

Jun. 30, 2025

Advance to Suppliers [Abstract]

Schedule of Advance to Suppliers

Advance to suppliers consisted of the following:

	As of December 31, 2024			As of June 30, 2025
	RMB			RMB			US$
				(Unaudited）
Advance to suppliers		17,789			14,251			1,990
Less: allowance for expected credit losses		(8,323	)		(4,443	)		(621	)
		9,466			9,808			1,369

Schedule of Allowance for Doubtful Accounts

An analysis of the expected credit losses was as follows:

	As of December 31, 2024			As of June 30, 2025
	RMB			RMB			US$
				(Unaudited）
Balance at beginning of the period		(8,472	)		(8,323	)		(1,163	)
Additional reversal for expected credit losses		149			3,880			542
Balance at the end of the period		(8,323	)		(4,443	)		(621	)