South Crofty site could reopen aided by potential $225m investment as US seeks to secure supply of critical metal

Donald Trump has aggressively pursued investment into hi-tech industries recent months, but the US administration has now set its sights on a more traditional sector: tin mining in Cornwall.

The South Crofty mine, near the village of Pool, could start up again after nearly three decades aided by a potential $225m (£166m) investment from across the Atlantic, in a move that would create 300 jobs.