Sirius Resources has signed an offtake agreement with BHP Billiton for its nickel sulphide concentrate from the Nova development.

Australian player Liquefied Natural Gas Limited has finalised an engineering, procurement and construction joint venture agreement with KBR and SK Engineering & Construction USA.

The long wait continues for Galaxy Resources shareholders to discover if the company has been successful in offloading its troubled Chinese processing plant.

Macmahon Holdings executive chairman Jim Walker and two other board members have been buying shares in the mining contractor during recent volatile trading.

Rio Tinto could be seeking to shed as many as 800 Western Australian  iron ore workers, according to unions, who have called on the mining giant to clarify its intentions.

Shares in Evolution Mining fell sharply after Newcrest Mining cut its stake in the gold miner from 32.3 per cent to 14.9 per cent.

Beadell Resources will pay a maiden dividend of one cent a share unfranked despite the gold miner unveiling an 88 per cent plunge in full-year profit.

Oil and gas-focused engineering company Clough has largely held on to profit levels despite enduring a fall in revenue of almost 30 per cent.

Rio Tinto will merge its copper and coal divisions into one business as part of a new range of cost-cutting measures announced by the mining giant.

Global mining giant Glencore will reduce coal production in Australia by 15 million tonnes this year in response to weak demand.

Shares in NRW Holdings fell after the mining contractor posted a first-half loss of $120.6 million and gave an unclear full-year outlook.