ATM withdrawal charges are decided by the banks providing the service, for instance, if a withdrawal is made from a Standard Chartered Bank, then both the local Standard Chartered Bank will add its service charge as well as the originating cardholders bank fee will be applicable. 

The Gokumarket Debit Card bank's ATM withdrawal fee is 3.5% (min. $5.50 USD) per transaction.

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Note: different local banks charge different fees for their availed ATM services)