In the trials, it is mainly to select profitable players. Therefore, the rate of return is the only assessment indicator. The selection process is divided into three parts: preliminary competition, semi-final competition and firm, and rewards, promotion and elimination are carried out according to the rules.

Green Stone Foreign Market is a public welfare futures simulation competition platform, aiming at selecting outstanding foreign futures investment talents and traders. The only goal is to help the Greenstone team choose traders and not engage in recruiting members or any other illegal activities. Greenstone traders create a platform for China traders to obtain trading funds quickly without any threshold. Any powerful trader can display his skill and gain wealth freedom on this platform.