Some of these products are sold directly on-site in Burundi, where several comptoirs run by nationals or foreigners have been set up. Table 4 shows the (decreasing) volume of Burundian imports from the Democratic Republic of the Congo.
（见表一）。 国家采矿公司的其他一些报告确切说明开采期间、生产数量以及锡石和钶钽铁矿石等矿物的美元开采价值（见表二）。