Gresham Private Equity's Barminco has raised $US350 million in a refinancing deal.
Goldman Sachs and HSBC were joint bookrunners on the transaction and SC Lowy was also involved in running the deal.
The refinance may be a precursor to an exit of the underground miner later this year, possibly via an initial public offering.
Street Talk revealed last month that Barminco was preparing to meet bond investors to discuss the refinancing of its $US299.7 million ($394.7 million) US high-yield bonds which mature in May 2018.