As the name implies, foreign trade is foreign trade, mainly dealing with foreigners and doing import and export business. The business is also divided into self-management and agency. Self-management: I find domestic products myself and then recommend them to foreigners as much as possible, so that they can buy our foreign exchange and earn a general profit; Agent: It means that we help manufacturers to export products, and the commission we earn is generally low (as far as we are concerned, we charge 6 cents from the factory for every 1 USD exported by agents). There is also import, which is just the opposite of export. We buy things from foreigners and sell them back to China.
Foreign trade companies basically make money from these.