One of the major barriers to practical quantum computing has been how to make qubits that retain their quantum information long enough to be useful.

The miner will supply 310,000 tonnes of spodumene concentrate per annum over a period of three years to the end of 2026.

The miner will sell nickel from the stockpiles for the next 18 months to two years, but would have to cut 30% of the workforce.

Sodium-ion batteries have an equivalent climate impact as their lithium-ion counterparts – but there isn’t a risk of running out of raw materials.