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The South Crofty tin mine in Cornwall is poised for reopening after nearly three decades, potentially backed by a $225 million investment from the US, which would create 300 jobs. Cornish Metals has received funding interest from the US export credit agency, with conditions that the mine supplies tin, classified as a critical mineral.

Tin's market value has escalated significantly, increasing from $16,000 per tonne in 2016 to over $50,000 in early 2026. The mine previously received a £28.6 million investment from the UK government in 2025. A recent US-led minerals summit involved commitments from the US, EU, and Japan to enhance critical mineral supplies and reduce reliance on China.