Coinbig was established in new Zealand. This exchange gives room for spot, OTC and derivative trades in well designed trading interface. Though I am jot too okay with the interface as it has a very slow response during trading. I always preferred using the exchange on desktop as it is more responsive and fast. The exchange has a customizable price fixture including the withdrawal fee. The customer support teams are also doing their best to make sure replies or feedback are sent quickly to users. The language the exchange supports is also considerable, languages like Japanese, English, Chinese etc... If not for the interface I love the exchange.