China Merchants Bank has the strictest foreign exchange control. Generally speaking, every transaction exceeding $3,000 must be reported to the foreign exchange bureau for the record. There is an annual foreign exchange quota for mainland users, with a maximum of $50,000 per person per year. Generally speaking, it is recommended to apply for opening ICBC (Asia) Card and China Merchants Card, commonly known as Hong Kong Bank Card, which can be handled at the head office where the provincial capital cities are located. At present, the Hong Kong card has largely solved the problem of large amount of funds in and out of mainland foreign exchange gold trading investors.