Hello! At present, only Industrial and Commercial Bank of China and Bank of China can make paper gold, but bank paper gold is generally traded in full, with high occupation cost. It can be considered that the operation of domestic spot gold is more flexible than paper gold and stocks. It was introduced by Shanghai Gold Exchange and can be traded in the form of margin. One day 10 hour can be bought and sold on the same day. The bank is the third custodian. If interested friends can discuss and communicate together.