From Financial Times:
US trade officials are close to filing a case against China at the World Trade Organisation challenging export restrictions on raw materials used in steelmaking and other industries.
The US has been working on the case intensely for the past few months, and could move ahead with a request for consultations – the first step in the WTO dispute settlement process – within weeks, according to people close to the discussions.
The European Union has already opened three investigations into allegations of dumping by Chinese steel producers.