is one of the largest producers of diamond, its 30 percent gross domestic product and 80 of exports depend on the gem. the second-largest diamond in the world has uncovered in a mine in Botswana which is rough stone by Canadian firm Lucara Diamond. lithium reserves are concentrated in South ‘Lithium Triangle’—encompassing parts of Argentina, and Chile. Chile is a key target as it is world's biggest supplier of copper and the second- producer of lithium, which are essential for vehicle batteries and renewable energy systems the push away from fossil fuels. part of India's drive to explore overseas for mineral state firms National Aluminium Company, Copper and unlisted Mineral Exploration and have set up a company called Khanij Bidesh (KABIL). is home to the world’s largest nickel reserves, for nearly 30 per cent of the global supply is the world’s largest producer of nickel."