Australian mining firms Brockman Resources Ltd. and Ferraus Ltd. have been offered A$929 million by Hong Kong firm Wah Nam International Holdings Ltd. to increase its shareholdings in the company.

Wah Nam International, which is also engaged in mining and transport, is willing to pay at A$6.47 a share, which is 36 percent more than its close on Thursday.

In a statement to the Hong Kong bourse, Wah Nam offered 6 of its shares for each of Ferraus, the equivalent of A$1.29 a share, Wah Nam said in a statement. That's 50 percent higher than yesterday's close.

Acquiring the two companies will add to Wah Nam's copper mine and other mining assets. Ferraus's exploration assets, on the other hand, will give Brockman's Marillana iron ore project in China a boost.

In a statement today to the Australian stock exchange, Brockman advised shareholders to take no action. It is being advised by UBS A.G

Wah Nam, with a market value of H$6.6 billion ($851 million), already owns respective stakes of 22.63 percent and 19.8 percent in Brockman and Ferraus.

Brockman's Marillana iron ore project in Australia's Pilbara region is scheduled to start output in 2013 and reach annual production of 17 million metric tons to 20 million tons of iron ore a year, the company said on its website. Ferraus also owns iron ore exploration assets in the Pilbara area.