Shanghai copper shed 1 percent on Thursday after posting biggest one-day gain in three months in the previous session, as fears of a deepening nuclear crisis in Japan drove investors away from riskier assets including equities and commodities.
* Three-month copper on the London Metal Exchange lost 0.7 percent to trade at $9,200 a tonne by 0101 GMT.
* Shanghai's most active copper futures contract fell by 1 percent to 69,820 yuan ($10,625), reversing the nearly 3 percent gain on Wednesday.
* Japan is scrambling to avert a nuclear catastrophe, expecting to send military helicopters to douse overheating reactors. For Japan earthquake stories, click
* Japanese stocks tumbled 4 percent on Thursday after a surge in the yen to a record high stoked fears that a stronger currency would compound the economic hit from a worsening nuclear crisis.
* The unrest in the Middle East remains a concern. Protesters took to the street in Saudi Arabia's oil-producing east, voicing support for Shi'ites in Bahrain, where Saudi Arabia had sent troops to help calm protests.
* Fears of a nuclear disaster in Japan largely eclipsed worries about the Middle East, sending U.S. crude oil futures down as much as 1.4 percent to below $97 a barrel.(Reuters)