As SteelOrbis previously reported, on March 29, Rio Tinto declared its AU$3.9 billion takeover bid for Riversdale unconditional, but stated it would increased its AU$16 offer price to AU$16.50 per share if it obtained an interest in more than 47 percent of Riversdale shares by a new deadline on April 6, 2011.
Riversdale owns large coal mines in Mozambique, including the Benga project and the neighboring Zambeze project which have high quality coking coal.