Sierra Leone is well known for its vast endowment in minerals which include diamonds, rutile, bauxite, gold, iron ore, limonite, platinum, chromite, coltan, tantalite, columbite, and zircon, as well as promising petroleum potential.

In May 2021, Sierra Leone announced that the outcome of the airborne geophysical survey (launched in Jan 2019) confirms the occurrence of more Kimberlites, Bauxite, Iron Ore, Gold, Rutile, and Nickel. It also provides high-resolution geological information with untold potential for targeting rare earth elements such as Cerium and Neodymium; battery metals such as Lithium and Graphite; Base metals; Platinum Group Metals; ethically sourced Coltan, and a range of other internationally desirable commodities for low carbon and digital technologies.