Inventories

12 Months Ended

Mar. 31, 2022

Inventory Disclosure [Abstract]

INVENTORIES

NOTE 5 — INVENTORIES

	As of March 31,
	2021			2022
	RMB			RMB
Raw materials		32,604			32,004
Work in progress		1,476			1,326
Finished goods		11,039			13,533
Total inventory, gross		45,119			46,863
Inventory reserve		(13,393	)		(10,792	)
Total inventory, net		31,726			36,071

The movement of inventory reserve was as follows:

	Year ended March 31,
	2020			2021			2022
	RMB			RMB			RMB
Balance at beginning of year		6,457			5,962			13,393
Additional charge (written off), net		(450	)		7,589			(2,467	)
Foreign currency translation difference		(45	)		(158	)		(134	)
Balance at the end of year		5,962			13,393			10,792