Coal is used in steel production.
Coal as power source is in decline same as oil.
Power generation with be renewables and cheapest fossil fuel will it be coal, LNG or oil? Uranium?
Lithium is in every electronic device and may well be in every new car.
Petrol is 40 cents excise and 12-15 cents GST. Electricity is just GST.
Big holes in govt coffers in the future.