It’s the $100bn question: for how much longer will China keep buying mountains of Australian iron ore?

The stakes are enormous. Last year, Australia’s iron ore sales to China made up one-fifth of the country’s total exports to the world ($105bn of $517bn), according to DFAT trade data.

USSC Senior Economic Advisor Dr John Kunkel was quoted in the article saying iron ore is the only "commodity that Treasury worries about in terms of its capacity to move the dial in a positive or negative direction."