The application of a new system for developing an operating mine is a complex problem whose solution is expected to satisfy a number of conflicting requirements.

将一种新的采矿方法应用到已采矿山会有许多复杂的问题有待解决，因为相互矛盾的要求需要得到满意的解决。

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Tasiast is already an operating mine, but with Kinross looking for a significant expansion.

FORBES: Kinross: Tasiast-Expansion Commitment To Hit $1 Billion By Year-End; Production Set For 2014

The Ekati Diamond Mine, located in the Northwest Territories of Canada, consists of the Core Zone, which includes the current operating mine and other permitted kimberlite pipes, as well as the Buffer Zone, an adjacent area hosting kimberlite pipes having both development and exploration potential.

FORBES: Harry Winston to Purchase Ekati Diamond Mine For $500 Million

In January 2012 Minsur started operating a gold mine, Pucamarca, along the border between Peru and Chile.

FORBES: Mario Brescia Cafferata & family