When Rio Tinto, a UK mining and metals company, bought coal tenements (RTCM) in Mozambique for $3.7 billion, it had high hopes for the property. But, according to the complaint for this class action, almost immediately problems arose, which the company hid in order to inflate its stock price. The company could not transport the coal as it had wanted to, the coal reserves were smaller than believed, and the quality and mix of types of coal were worse, all of the which the complaint claims led to a negative valuation of RTCM. Still, the complaint claims, the company hid all of this and the truth did not emerge until February 2013.