A road in Anmatjere, Northern Territory, near the Arafura Rare Earths Nolans mine Abstract Aerial Art/Getty It’s been a significant month for Australia’s ambitions to become a critical minerals superpower, while balancing its relationships with China and the United States. Last Monday, Treasurer Jim Chalmers announced he had ordered six investors with links to China to sell off shares in Northern Minerals, an Australian rare-earths company developing the Browns Range project in Western Australia