Cryptopia has a low rate on Gbyte Exchange.
Bittrex doesn't accept new comers.
Upbit is for koreans (having trouble with verifying my account)

I'm still looking for some exchange site that has the same rate as Bittrex and also have low fees in withdrawal process.

PLEASE HELP. Currently Holding 0.31399849 GBYTES on Cryptopia.
(Planning To Sell This With The Rate of 0.0262BTC)