1983年初,位于加拿大蒙特利尔的美国普雷莎·阿麦克斯公司(Placer Amex Inc。)的戈尔登·桑赖特金矿(Golden sunlightmine)建成投产。戈尔登·桑赖特金矿工程项目引人注目之处,在于它比原计划提前5个月竣工,基建总投资仅用了5000万美元,比原预算的8800万美元低40%。这是由于利率较低、通货膨胀减少、极有竞争性的施工投标以及采 In early 1983, Golden sunlightmine from Placer Amex Inc. of Montreal, Canada was put into operation. The striking feature of the Golden Suningt Gold Project is that it completed five months earlier than originally planned, with a total infrastructure investment of only 50 million U.S. dollars, 40% below the original estimate of 88 million U.S. dollars. This is due to lower interest rates, reduced inflation, highly competitive construction bidding and mining