美国盐湖城的肯尼科特铜公司(Ke-nnecott)投资2.27亿美元扩建。扩建项目包括犹他铜企业(选冶)和宾厄姆坎雍铜矿。扩建工程是从1990年夏季开始的,将于今年第三季度完成。到时铜产量将由3万t/a增至28万t/a。扩建项目包括增建 Copper-ton 铜选厂的第四条半自磨矿作业线与浮选回路,扩建现有钼回收厂的粗矿储场与提高 Ke-nnecott, Salt Lake City, U.S. $ 227 million expansion. The expansion projects include the Utah Copper Enterprise (Smelter) and the Bingham Mukong Copper Mine. The expansion project started in the summer of 1990 and will be completed in the third quarter of this year. By the time the copper output will increase from 30,000 t / a to 280,000 t / a. The expansion project includes the construction of the fourth semi-autogenous grinding line and flotation circuit of the Copper-ton copper processing plant, the expansion of the crude ore storage plant of the existing molybdenum recovery plant and the improvement thereof