Gold foreign exchange is actually a spot foreign exchange electronic disk.
Futures are bought in the future, belong to contracts for a certain period in the future, and have delivery.
Judging from the electronic disk, the difference between the three lies in the following points.
The first supervision, gold foreign exchange and precious metals, futures. China has no foreign exchange regulation except gold, including Shanghai Futures and China Shanghai Gold Exchange.
The second trading rule is gold foreign exchange 5X24 hours trading, and other rules are divided into time periods.
The three quotation systems are different, not the same quotation system. Physical gold is priced in RMB by Shanghai Gold Exchange. The foreign exchange quotation system of precious metals and gold is mostly based on the quotation of London Mercantile Exchange.
That's about it.