The fluctuation trend of spot futures prices is similar, and the price difference is roughly equal to storage fee, transportation fee and interest.
Commodity trading (spot electronic trading, also known as "quasi-futures", is actually "pseudo-futures") increases the speculative mechanism, which is actually a financial trap (mostly), informal, unregulated and without legal protection.
Futures trading is supervised by the CSRC, and the exchange is not for profit. Individual customers open accounts through futures companies, and the margin is supervised by a third party (margin monitoring center) to serve the real economy.