The Mining Innovations for Negative Emissions Resource Recovery (MINER) program’s aim is to support the development of commercial-ready technologies that give the United States a net-zero or net negative emissions pathway toward increased domestic supplies of copper, nickel, lithium, cobalt, rare earth elements, and other critical elements required for the transition to clean energy. The lack of a secure domestic supply of these minerals poses a significant supply chain risk for the United States, especially with regard to batteries, renewable energy generation, and transmission. Meanwhile, the domestic mining industry faces the rapid depletion of high-profit deposits, increased cost of mining and processing, expensive management, and accumulation of tailings, resulting in an overall reduced return of investment by conventional mining methods. Consequently, the Advanced Research Projects Agency – Energy (ARPA–E) is issuing this Funding Opportunity Announcement (FOA) with objectives to support the development of technology and approaches to: (1) decrease comminution energy by 50% compared to state-of-the-art; (2) increase yield of energy-relevant minerals by reducing unrecovered energy-relevant minerals in the tailings by 50% compared to state-of-the-art; and (3) enabling the negative emissions production of key minerals by sequestering >10 wt.% CO2e per metric ton of ore processed; and (4) develop methods to model carbonation potential, delineate petrophysical changes from carbonation, and quantify carbonate and energy-relevant mineralization in CO2-reactive geologic formations.”