Meanwhile, RHI is working on the preparations for its listing on the London Stock Exchange.
Brazilian prosecutors are calling for full compensation for damage they say has been caused to indigenous communities near the mine.
By value these exports jumped over 50% year-on-year in the January-August period, official data shows.
Mario Bernardini, the competitiveness director of Brazil's influential machinery and equipment industry association Abimaq, said the country has become dysfunctional, both politically and administratively.
Mining exploration companies Impact Silver, Inca Minerals and Precipitate Gold provide operating updates on their projects.
The mayor of the town of Belén said the mining industry is vital for the province's economic future.