DOE Critical Mineral Resource Potential

September 28, 2026 Please see attached Compiled EOI and Appendices_V2 DEPARTMENT OF ENERGY Expression of Interest—DOE’s Office of Environmental Management (DOE-EM) Critical Minerals and Materials Inventory. AGENCY: Office of Environmental Management, Department of Energy. ACTION: Expression of Interest (EOI). SUMMARY: The U.S. Department of Energy (DOE) Office of Environmental Management (EM) publishes the following questions regarding potential collaboration with interested parties for the reuse of its critical and rare earth minerals and materials. The