Rainbow Rare Earths Limited engages in the mining and exploration of rare earth minerals. It explores for neodymium and praseodymium deposits. The company primarily holds a 90% interest in the Gakara project covering an area of approximately 135 square kilometers located in Western Burundi. It also holds Phalaborwa project located in South Africa. The company was founded in 2011 and is based in Saint Peter Port, the United Kingdom.