It is now known as King of the Hills, the original name for the area from its discovery in 1897, and is owned and operated by Saracen Mineral Holdings Limited.

[12][13] In February 2004, a pit wall failure caused disruptions to the mine, leading to its eventual closure in September 2004.

[2] In retrospect, the purchase of Pacmin and Tarmoola was seen as very expensive, especially in the light of gold reserve write downs and operational difficulties at the mine.

[14][15] Sons of Gwalia went into administration on 30 August 2004, following a financial collapse, with debts exceeding $800 million after suffering from falling gold reserves and hedging losses.

[16] Sons of Gwalia was Australia's third-largest gold producer and also controlled more than half the world's production of tantalum.