Tambao, one of the world’s largest manganese mines, has been halted since 2015 after Burkina Faso's new government ordered the company to stop production.
Brazil's government wants Congress to reconsider a decades-old proposal to allow mining in indigenous reserves, which occupy 13% of the country's territory.
Developing of one of the world's biggest untapped copper and gold deposits is currently stalled by a multi-billion dollar legal wrangle with foreign mining firms.