Niobium''s silent impact in Brazil Dialogo Chino
Apr 05, 2019· On a 2016 visit to the Brazilian Metallurgy and Mining Company (CBMM), the largest niobium producer in the world, he said the element could be "more important than petroleum". Bolsonaro highlighted the company''s positive influence on the city of Araxá, Minas Gerais State, where it had built houses for its workers and a school for their children.