Inventories

12 Months Ended

Dec. 31, 2025

Inventories [Abstract]

INVENTORIES

6. INVENTORIES

	As of December 31,
	2024			2025
	RMB			RMB		US$
Raw materials		3,358			5,967		849
Low value consumables		34			34		5
Finished goods		6,492			6,290		895
Less: inventory impairment		(12	)		-		-
		9,872			12,291		1,749

The Group recognized nil and nil of reserve of inventory for the years ended December 31, 2024 and 2025, respectively. The impairment is due to the fact that inventory is obsolete and no longer sellable.