Futures companies are members of the exchange and have no right to increase trading varieties. The exchange also needs strict procedures to add new varieties, inspect the market and study and demonstrate the feasibility of variety trading. It can be said that adding a new variety requires a lot of energy and time investment, as well as strict filing and approval procedures. Exchanges and futures companies have no authority in this respect, and it is not as simple as listing.

Your supplementary question is not very clear. Futures companies are supervised by relevant regulatory agencies, and their business scope is strictly limited. If you have evidence to prove that the futures company is operating illegally, you can report it to the local CSRC agency. If the report is true, the company will be sanctioned by relevant laws and regulations.