Just very briefly on the China front, as far as we can tell, roughly 90% of North Korean trade runs through China. We were very pleased to see that the Chinese government supported the latest UN Security Council resolution, which is significantly upping the sanctions that are imposed, including in very key areas like oil.
As Mark said, it's an economy that's quite self-sufficient. Only about 10% to 15% is dependent on foreign trade. Another big source of income for them is from overseas labour, from a lot of North Koreans working abroad in a number of places and their salaries being remitted. That's another area we're looking at very closely, along with other partners, in a UN context. We have been joining with other partners, including the U.S., to both encourage and support those countries that aren't doing so well on implementing the sanctions to do so, helping them build capacity so that they can deal with issues like this.
That most recent UN Security Council resolution, among others things, turned the tap off on future flows from North Korean workers abroad.