Alcoa refuses to rule out mining the Perth Hills
A letter from the US miner raised hope that the jarrah forest inland from Perth would escape its strip mining for bauxite, but Alcoa is keeping its options open.
A critical mineral is an element essential for modern technologies, economies or national security, and there is a risk its supply chain could be disrupted.
An Alcoa plant to produce gallium in WA's South West will need green tape shredded to start on schedule and long term forest mining to be viable.
Extraction of the critical mineral found in the waste from making alumina from bauxite could curb China's 98 per cent share of global production.
Production tax credits for hydrogen and critical minerals are set to be law after Labor struck a deal with the Greens.
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