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The South Crofty tin mine in Cornwall may reopen with a potential $225 million investment from the US, creating 300 jobs. Cornish Metals received a letter of interest from the US export credit agency, contingent on the mine supplying tin, deemed critical for technology and AI.

The tin price has surged from $16,000 per tonne in 2016 to over $50,000 in 2026, while two-thirds of current tin supply comes from China, Myanmar, and Indonesia. UK government previously invested £28.6 million in 2025 to support the mine's reopening.