So are you saying we shouldn't invest on bankex and it couldn't listed on big exchange such like binance?

No. The user's just saying that BKX is a use token.

When will bankex go to higher price? I doubt the exchanges are too little and can't be listing on big ones.

Please refer to my reply above regarding this.

Hi dev. what are the possible news for buying on ED? Sorry im new to cypto market. Thanks !

No official announcement regarding exchange names, so you're on your own trading there and it is not recommended.