They do not realize that Chicom can play this game better. Australian corporation may think in purely business terms, but Chinese would think in both economic and geopolitical terms.
Their only hope is that China collapses before they get to fully implement their plan.
The ChiComs can bribe and threaten their way to dominance in any Australian resource company that is foolish enough to allow them as little as 15% ownership
The Chinese are poor, developing and ravenous for certain commodities. Particularly Australian coal which is cheaper to transport from Australian port to a Chinese port than transport from interior China to coastal China where the industrial development is. They are like a thirsty man in a desert. In contrast the Australians are too fat comfortable and happy with themselves
Plus the Middle Kingdom Chinese have a racial disdain for soft white people. This also motivates them to take what they can get with no remorse