AAP

Shares in OneSteel plunged 16 per cent to a decade low after the company revised down its earnings guidance because of the recent fall in the iron ore price and rise in the Australian dollar.

Outspoken Labor backbencher Doug Cameron says the government will have to consider changing the Fair Work Act to make sure companies can't abuse the law like he says Qantas did on the weekend.

The Australian stock market has opened lower, mirroring large losses on offshore bourses, as investors reacted to the latest developments in financially-troubled Greece.

Westpac Banking Corporation has increased full year profit by 10 per cent, saying its business strategy was "delivering tangible benefits".

The Australian dollar is sharply lower as news of a Greek referendum to decide whether to accept a second Eurozone bailout package sent jitters through markets.

Collapsed US broker MF Global may have used client money on its own behalf as it fought to beat losses on European debt, markets operator CME Group said Tuesday.

US stocks dived Tuesday after Greece unexpectedly called a referendum on its latest EU bailout program, sending global markets into a tailspin.

The Australian dollar fell after the central bank cut interest rates and weaker than expected Chinese manufacturing figures were published.

Qantas Airways' bookings should improve in the period ahead as the end of work stoppages brings greater certainty to the Flying Kangaroos' schedule, analysts say.

Australia's export commodity prices fell in October, the second consecutive drop from a record high in August.

More than half of Western Australia's surf life saving clubs are threatened by rising sea levels and erosion, according to a new report.

Australian stocks fell 1.5 per cent, as weakness among the nation's major miners dragged the broader market lower on weaker Chinese manufacturing data and concerns about Europe.

Grocery giant Coles has been caught up in an online scam offering free $500 gift cards to the supermarket.

BHP Billiton has approved the development of the $US4.2 billion ($A4 billion) Caval Ridge Mine coal project in the northern Bowen Basin in central Queensland.

Tough new abalone laws have been introduced to Western Australia this season, giving recreational fishermen just one hour on the first Sunday of each month to collect the valuable shellfish.

Prime Minister Julia Gillard has told Labor MPs the decision by Qantas to ground its fleet at the weekend was irresponsible.

Campbell Brothers has bought US-based environmental and food analytical group, Columbia Analytical Services (CAS), for $US33 million ($31 million), as the company seeks to expand in the United Stat

Prime Minister Julia Gillard says she wants developing nations to invest in clean energy, as she heads to the G20 leaders' summit on France's south coast.

Wesfarmers has raised $500 million through the issue of fixed-rate medium-term notes.

The Australian share market has opened one per cent lower, led by the big miners, as renewed worries about the Eurozone crisis emerged.

The Australian dollar bounced back overnight after a big sell-off yesterday afternoon, sparked by Japanese authorities reducing the value of the yen.

The federal government will have to clear another hurdle on its mining tax with key independent MPs demanding stricter rules for coal seam gas proposals on farm land.

US stocks plunged Monday amid renewed worries about the eurozone debt crisis, which claimed its first major US casualty -- a key brokerage that filed for bankruptcy.

The Australian dollar is weaker from Friday as traders await a interest rate decision by the central bank on Tuesday.

The Australian Securities Exchange's 21-year monopoly on share trading is over after cheaper rival Chi-X quietly opened for business.

France's Arianespace will launch a new satellite for Optus in 2013 to boost capacity for the telco's internet, voice and data services.

Ratings agencies have placed Qantas Airways on review for a possible downgrade following the grounding of the entire Qantas fleet over the weekend.

The Royal Australian Air Force has come to the rescue of federal MPs stuck in Western Australia due to the Qantas strike.

Credit growth picked up a little in September, marginally eroding the case for lower interest rates, but price measures leant the other way.

The Australian share market has ended another volatile month on global stock markets by posting the biggest one-month gain in two years.

Shares in Africa-focused miner Paladin were punished after it reported a fall in uranium production amid weak market prices, despite record sales for the September quarter.

The only way to meet a tripling in natural gas demand in eastern Australia is by allowing unconventional gas projects, such as coal seam gas (CSG), oil and gas producer Santos says.