Futures companies are the link between customers and exchanges, and customers can only participate in futures trading through futures brokerage companies. Bismuth is a metal product in futures, so it must also be bought by futures companies.

Commodity futures refer to futures contracts with physical goods as the subject matter. Commodity futures have a long history and a wide variety, mainly including agricultural and sideline products, metal products and energy products. It is a standardized agreement about the buyers and sellers buying and selling a certain number of physical goods on an agreed date in the future at the price agreed at the time of signing the contract. Commodity futures trading is a standardized contract trading method for buying and selling specific commodities on futures exchanges.