* Australia trade minister expresses concerns to China
* Australia says has no information on investigation
* China-Australia trade ties unlikely affected - minister
* Detained Australian appears well during consular visit
By Ben Blanchard
SHANGHAI, July 11 (Reuters) - Australia's trade minister
pressed China on Saturday for more details about the detention
of a Rio Tinto
Stern Hu, an Australian national, and three Chinese employees of Rio Tinto's iron ore department were detained last week, on what China said was suspicion of stealing state secrets.
Simon Crean told reporters he had expressed "strong concern" to the Shanghai city government regarding Hu, and that Australia hoped the issue would be dealt with quickly.
"We've stressed the importance of getting further and better details," the minister said, speaking on the rooftop of a restaurant on Shanghai's historic Bund waterfront.
"We have no information as to what the investigation does involve. We're going on the basis of press reports. The government here is not able to inform us anymore," he added.
"We respect the Chinese legal system and the processes that need to be gone through, but we've indicated that this too is an important issue back home in Australia."
Australian consular officials visited Hu at the Shanghai detention centre where he is being held on Friday. Crean said Hu had appeared well.
"Obviously if charges are laid ... clearly we're also pressing for availability of legal representation as well," he added.
"We have a different set of rules back home for the treatment of individuals than is the case here. ... We have to respect their system and work within it."
TENSE TIMES
The detentions came just after Chinese steel mills, led by
the China Iron and Steel Association, failed to reach an
agreement on 2009 iron ore prices with Rio and rival miners BHP
Billiton
At least one senior official at China's eighth largest steel mill, Shougang, has also been detained, media said.
China broadly defines what constitutes a state secret. In the last four years, the annual term iron ore price negotiations have become increasingly fraught, with the result seen as vital to China's national interest.
The case has stunned the global steel industry, which was already transfixed on the marathon iron ore talks. After more than six months of cat-and-mouse, China appeared to be boxed in, forced to accept Rio's price or to abandon long-term deals and risk destroying a decades-old pricing system.
The shock detentions appear to have left the price talks in limbo and cast a shadow on relations between Beijing and Canberra, whose economies have been welded together in recent years by China's huge demand for metals and minerals.
Crean downplayed the potential economic impact of the case. "I see no reason why our trade relationships will be damaged, if what we can get is an expedition of the process in accordance with Chinese law," he said.
"The commercial opportunities in China are very strong for Australian interest. The inter-dependency between our two economies is very strong," the minister added.
"We believe that both economies, Australia and China, need each other," he said. "But we should always do it within the law. The government will do it that way, and I've a strong message to every commercial interest that they too need to do it that way." (Additional reporting by Lucy Hornby in Beijing; Editing by Jeremy Laurence)