Key judgement due at 0500 GMT.

Japanese courts will rule on an injunction aimed at restarting parts of Japan's idled nuclear industry run by Kansai Electric. Head justice Hideaki Higuchi leads a panel that will decide at 0500 GMT. He already ruled against Kansai Electric once so the odds favor another blocking move.

At issue are two reactors in Takahama with a capacity of 870-megawatts each. They are slated to restart later this year unless the injunction prevails.

Fossil fuel imports have badly hurt Japanese trade since Fukushima and Abe favors a return to nuclear. A positive ruling would be a good start toward restarting 43 idled reactors and may give the yen a short-term lift. Reuters has more.

Ultimately, I believe nuclear power makes far too much sense to ignore (in Japan and elsewhere). The latest designs are extremely safe and far less dangerous in the long-term than burning coal. I think the trade is buying uranium companies rather than the yen but it's a matter of timing as there is no telling how the judiciary will rule.