Financial instruments that potentially expose the Group to concentrations of credit risk consist primarily of cash and cash equivalents, accounts receivable, other receivables, deposits and other assets, short-term investments, short-term investments under fair value and long-term investments under fair value. The Group places its cash and cash equivalents and investments with financial institutions with high-credit ratings. The Group conducts credit evaluations of its customers and suppliers, and generally does not require collateral or other security from them. The Group evaluates its collection experience and long outstanding balances to determine the need for an allowance for doubtful accounts.

The Group evaluates its concentrations of the continuing operations are as follows:

For the years ended February 28, 2022, 2023 and February 29, 2024, the customers who accounted for 10% or more of total revenues are presented as follows:


	For the Years Ended
	February 28,		February 28,					February 29,
	2022		2023					2024
	RMB	%	RMB		%			RMB	USD	%
Customer A	—	—		7,381		22	%	*	*	*
Total	—	—		7,381		22	%	*	*	*

*Represented the percentage below 10%

As of February 28, 2023 and February 29, 2024, the customers who accounted for 10% or more of accounts receivable are presented as follows:


	As of
	February 28,		February 29,
	2023		2024
	RMB	%	RMB		USD		%
Customer B	—	—		927		129		29	%
Customer C	—	—		662		92		20	%
Customer D	—	—		387		54		12	%
Total	—	—		1,976		275		61	%

For the years ended February 28, 2022, 2023 and February 29, 2024, there was no supplier accounting for 10% or more of the cost of revenues.