Cash consists of cash on hand and cash at bank. Cash at bank are deposited in financial institutions at below locations:

	2023		2024
	December 31,
	2023		2024
	RMB		RMB
Cash balances include deposits in: Financial institutions in the mainland of the PRC
—Denominated in Renminbi (“RMB”)		237,178		257,829
—Denominated in US$		58,722		160,963
Total cash balances held at mainland PRC financial institutions		295,900		418,792
Financial institutions in Hong Kong Special Administrative Region (“HKSAR”)
—Denominated in US$		30,882		180,551
Total cash balances held at HKSAR financial institutions		30,882		180,551
Financial institutions in Japan
—Denominated in Japanese Yen		28,544		25,265
— Denominated in United Stated Dollars (“USD”)		14,720		11,030
Total cash balances held at Japan financial institutions		43,264		36,295
Financial institutions in Malaysia
—Denominated in Malaysian Ringgit		413		842
—Denominated in US$		286		77
Total cash balances held at Malaysia financial institutions		699		919
Financial institutions in Singapore
—Denominated in SGD		6,153		1,978
— Denominated in United Stated Dollars (“USD”)		46		1,166
Total cash balances held at Singapore financial institutions		6,199		3,144
Financial institutions in Korean
— Denominated in Korean Won (“KRW”)		280		362
— Denominated in United Stated Dollars (“USD”)		227		49
Total cash balances held at Korean financial institutions		507		411
Financial institutions in Mexico
— Denominated in United Stated Dollars (“USD”)		496		7
Total cash balances held at Korean financial institutions		496		7
Total cash balances held at financial institutions		377,947		640,119
Total cash balances		377,947		640,119

The estimated useful lives are as follows:

Computer and office equipment		3-5 years
Furniture and fixtures		3-5 years
Motor vehicles		4-5 years
Buildings		20 years
Leasehold improvements		The shorter of lease terms and estimated useful lives