Haemetite, I think many here will challenge you on this "While SDL is a relatively expensive project compared to other options" assertion.
Back it up with apples-to-apples examples of a comparable size resource (most importantly where China can OWN outright from mine to port). You can rule out the Pilbara and Brazil.
In any case China's acquisition of Sundance is not a commericial deal in the context of buying a mine. There are strategic condiserations.
Currently 40%+ of China's import comes from Australia (a country whose alliance with the US was the very reason why they were denied ownership of oakajee infrastructure - they gave them to the Japanese - Mitsubishi).
Not withstanding it would be painful for Australia, Australia can THREATENED China's IO supply security. They DESPERATELY NEED TO DIVERSIFY.
Sundance is VERY ECONOMIC and APPEALING FOR LONG TERMS RETURNS because if it falls into western hands, that's another 100MTA China CANNOT have.
Even if Sundance economics were marginal (FAR FROM IT), the 100MTA (as per Chinese admission) that could potentially be delivered would have a HUGE FINANCIAL IMPACT on IO PRICE NEGOTIAIONS in terms of leverage.
Surely you know how a LEVER works ??
SDL Price at posting:
37.7¢ Sentiment: None Disclosure: Held