本合同签字之日3个月内,即不迟于2016年8月31日支付本合同金额的50%的预付款,计50万美元整(大写:伍拾万美圆整)。Fifty percent (50%) of the total contract value as advance US $500,000 (_________) , shall be paid by Party A to Party B within three months, from the date of the signing of this contract, i.e. not later than August 31, 2016.