Reuters reports that shipments of copper from the Oyu Tolgoi mine will begin on Friday, June 14th. Oyu Tolgoi is critical to Rio Tinto, which is the majority owner of the mine, not only because of the scale of the operation—which is expected to produce 330,000 tons of copper each year for the next ten years, as well as 495,000 ounces of gold—but also because the company would like to ...