Mantle Resilience Plc invests in and develops the UK's natural-resource supply chains. It also manufactures and builds the technological capabilities needed to underpin the defense, energy, and infrastructure sectors. The company also explores for cobalt, copper, lithium, nickel, manganese, and rare earth deposits. It holds exploration projects in the United Kingdom, the USA, Spain, and Cameroon. Mantle Resilience Plc was formerly known as Technology Minerals Plc and changed its name to Mantle Resilience Plc in October 2026. The company was incorporated in 2021 and is based in London, the United Kingdom.