Qatar Holding denied on Wednesday media reports that it was in talks to buy a stake in Brazilian billionaire Eike Batista's gold company (AUX). "Qatar Holding wishes to make clear that it is not, and has never been, involved in discussions regarding such an acquisition. There is therefore no foundation, past or present, to such speculation," the Company said in a statement. AUX is controlled by billionaire Eike Batista, Brazil's richest man. Earlier media reports said the mining company was negotiating to sell a 49 per cent stake to Qatar Holding for about $2 billion. Qatar Holding LLC (QH) is a global investment house established in 2006, founded and wholly owned by the Qatar Investment Authority (QIA). QH invests internationally and locally in strategic private and public equity as well as in other direct investments.