Each bank's business outlet has a unique code in China, which is the bank institution number. The bank code consists of four easy-to-identify bank initials. The code of China Construction Bank is PCBCCNBJFJX, the code of China Agricultural Bank is ABOCCNBJ, the code of China Industrial and Commercial Bank is ICBKCNBJ, the code of China Merchants Bank is CMBCCNBS, the code of China Bank of Communications is SWIFTCODE, and the code of China Bank is BKCHCNBJ.