This reinforces the need for their economic diversification and transformation. For instance, the global push towards renewable energy and energy efficiency creates new opportunities in the mining sector in CDDCs with large reserves of the strategic materials embodied in clean technologies, such as solar photovoltaic cells, wind turbines, light-emitting diodes (LED) and electric vehicle batteries. One example is the Democratic Republic of the Congo, which accounted for 58 per cent of the global supply of cobalt, a key commodity used in the production of electric vehicle batteries.