Rio Tinto Limited operates in the Iron ores sector. Rio Tinto Limited is engaged in minerals exploration, development, production and processing. Its product groups include aluminum, copper, diamonds and minerals, energy, and iron ore. Its major products are aluminum, copper, diamonds, coal, iron ore, uranium, molybdenum, gold, borates, titanium dioxide, salt and talc. Its businesses include open pit and underground mines, mills, refineries and smelters, as well as a number of research and service facilities. As of March 16, 2011, it held 42.1% interest in Ivanhoe Mines. On February 1, 2010, it sold majority of the Alcan Packaging businesses and its interest in Ghana Bauxite Company. On December 21, 2010, it divested its holdings in Cloud Peak Energy Inc. On January 4, 2011, it sold 61% of Alcan Engineered Products, excluding the Cable division. In December 2011, it divested its Colowyo Mine. In January 2012, Rio Tinto Limited's indirect wholly owned subsidiary acquired additional 5.87% of Hathor Exploration Limited. In our complete report available for purchase the company is compared to: BHP Billiton Limited, BHP Billiton PLC and Rio Tinto plc.