Haiyu Mozambique Mining Co. Lda, a subsidiary of Hainan Haiyu Mining Co. Ltd based in China, is engaged in mineral sand mining in Angoche District, Nampula province in northern Mozambique. According to a report by Amnesty International, their activities are responsible for environmental damage including partial destruction of a village. Coal Under Portuguese rule, few geological surveys had been done, but after independence, huge new coalfields were discovered in the north western Tete Province described by one source as "...one of the largest coal plays on the globe." In 2006 Vale of Brazil completed a feasibility study on the development of a mine in the Moatize basin coalfield in Tete. Vale planned that coking coal would be consumed by steel plants in Brazil and thermal coal would be consumed by a coal-fired power station to be built by Vale in Mozambique with a capacity of 1,500 megawatts. Originally the Moatize Mine was forecast to produce 9 million metric tons per year (Mt/yr) of coking coal and 3.5 Mt/yr of thermal coal by 2010 but, by 2012, Moatize actually produced only 2.6 million tons of coal that year. In 2013 Vale projected the mine would produce 22 million metric tons of coal ore per year in 2015 but this would depend on development of adequate rail links to the coast and adequate coal handling facilities at the ports. In 2006 Central African Mining also acquired exploration licenses in the Moatize basin coalfield and started construction of a mine. Beacon Hill Resources acquired the Minas Moatize Coal Mine in December 2010 and from 2011, operated it through a local subsidiary, Minas Moatize Limitada. Beacon Hill converted the mine from underground to open-cast mining. In 2012 the Minas Moatize Coal Mine was estimated to have proven reserves of 25 million tons and probable reserves of 17 million tons of thermal coking coal. Beacon estimated production was 0.1 million tons of coal in 2012, transported to the port of Beira using a fleet of 40 trucks. Beacon hoped to reduce transport costs in the future by using the railway. In March 2012, Beacon Hill entered a marketing partnership with the Dutch Vitol trading group who would market and export the coal. In April 2010 the Australian company Riversdale Mining (bought by the Rio Tinto Group in 2011) opened the Benga coal project in Tete. Riversdale estimated in 2010 that the Benga coalfield had 502