By Sarah Turner

SYDNEY (MarketWatch) -- Sydney-listed mining companies are riding high along with commodity futures, although analysts will likely be watching upcoming quarterly production reports for future performance cues.

On Thursday, Rio Tinto Ltd. (RIO) shares gained 3.5%, BHP Billiton Ltd. (BHP) shares climbed 1.9% and Newcrest Mining Ltd. (NCMGF) shares rose 3.1%.

The advance helped the S&P/ASX 200 index climb 1.6%. Across Asia, it was a similar story, with metal stocks on the move in Japan, helping the Nikkei 225 index climb 1.8%.

Meanwhile, Hong Kong's Hang Seng Index , and Korea's Kospi Index each rose 0.8%, while the Shanghai Composite Index rose 1.5%, and the Singapore Strait Times index rose 0.4%.

The metals and mining sector has lately been buoyed by a relentless rise in metal futures, with investors heading into commodities on expectations that the U.S. Federal Reserve will ease policy further, and that Chinese demand for commodities will continue.

Gold futures ended New York trade at their 16th record high in five weeks, and then broke that record in electronic trading in Asia, moving near $1,378. Copper futures climbed 2 cents to $3.84 per pound.

Watching for production

Still, it's not all smooth sailing for the sector, as third quarter production results are likely to illustrate.

For example, coal production is expected to have taken a hit in the third quarter, with the wettest September in 100 years for Queensland, and heavy rain in New South Wales too. That's led to speculation that production has been offline at coal mining operations in the region for longer than usual.

Against this background Rio Tinto may lower guidance for its coal operations when it reports production figures later in the session Thursday session, UBS analysts wrote.

They made the comments after Rio Tinto-managed and 75%-owned Coal & Allied Industries Wednesday projected lower fiscal-year production and sales after 13% of allotted production time was lost to rain over the third quarter.

"We expect Rio Tinto to reduce their 2010 guidance for their share of RTCA [Rio Tinto Coal and Allied]. We have cut our coal production estimates and are forecasting 7% lower production than guidance," the UBS analysts said.

Rio Tinto is giving its production update at the start of the third-quarter reporting season for miners, and the UBS analysts said that "all coal companies have the potential to disappoint, relative to our forecast, due to the unseasonably wet weather."

Similarly, BHP Billiton, Macarthur Coal Ltd. (MCC.AU) and Whitehaven Coal Ltd. (WHITF) could see some weather-related impact in their coal operations, the UBS analysts said.

"Commentary on inventories will be important to assess the vulnerability of supply going into the wet season between November and March and the potential for higher metallurgical coal prices," they added.

Still, although coal production is likely to be a focus, BHP Billiton is expected to see a record quarter for iron ore, while Rio Tinto's iron-ore production "should be fine," with Western Australian operations running at capacity, the UBS analysts said.

BHP and Rio Tinto are currently trying to combine their Western Australian iron-ore operations into a joint venture, although there has been speculation of late about the future of the venture.

On Thursday, Fortescue Metals Group Ltd. provided some detail on iron ore. It posted a 7% quarter-on-quarter drop in total ore shipped to 10.3 million metric tonnes following maintenance shutdowns.

The firm said that the figure exceeded its previous guidance of 9.5 million tonnes and shares retained gains after the results, trading up 2.9%.

 
 
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