Foreign futures are not illegal, and foreign exchange is irregular to some extent, because the state controls foreign exchange business. To do external futures, you only need to open an external account in a futures company. You can log in to an external account for external futures trading. The internal account can only be used for internal futures, and the external account can be used for external futures. The two are different. You must first open an external account with a futures company. As for how to do external futures? Doing what the domestic market does is one thing.