Cornish Metals plc engages in the acquisition, evaluation, exploration, and development of mineral properties in the United Kingdom. The company primarily explores for tin, tungsten, zinc, silver, nickel, lithium, and copper deposits. Its flagship project is the South Crofty project comprising an underground mine permission area that covers 1,490 hectares located in the Central Mining District of Cornwall, United Kingdom. The company was founded in 2001 and is based in Truro, United Kingdom.