Tugboat union action

I see a report that the tugboat operators at Port Hedland are continiung, and threatening to escalate industrial action. This has the potential to have a massive material impact on IO exports by BHP, FMG and AGO according to the report on e-trade homepage. The uncertainty could boost IO price in the ST, and benefit IO exporters away from Pt Hedland. A potential +ve for GBG!!! We need all the free kicks we can get!!!