Rare earths were originally set to go to Chinese company Shenghe. Government brokered a new transaction in Canada.
Analysis by the World Bank shows how strongly the policies of major economies influence trade flows.
Catalysts under development by U.S. researchers could produce the raw material important for the chemical industry more efficiently.
Raw materials that can withstand extreme temperatures are in demand for space missions to inhospitable planets. Gallium nitride could be a hot candidate.
High tech, low mining: South Korea needs critical raw materials
Analysis by BloombergNEF calls for more investment in low-carbon energy.