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加拿大多伦多市的Interstar采矿集团已经与布基纳法索政府签订协议拟开采唐巴奥(Tambao)地区的高品位锰矿床。矿体总储量超过1300万t,平均品位含Mn49.85％。根据一项初步的可行性研究结果,每年开采并运输7.5万t可销售的锰矿石,将需要1500万美元的投资,计划1995—1996年把产量扩大到年产40万t,但这要取决予能否把铁路干线从目前的卡亚终点延伸136km(估计要耗资9400万
The Interstar Mining Group in Toronto, Canada, has signed an agreement with the Burkina Faso government to develop high-grade manganese deposits in the Tambao region. Total ore reserves more than 13 million t, the average grade with Mn49.85%. According to a preliminary feasibility study, 75,000 tons of salable manganese ore are mined and transported each year, which will require an investment of 15 million U.S. dollars. It is planned that the output will be expanded to an annual output of 400,000 tons in 1995-1996, but this depends on Would it be possible to extend the railway line 136km from the current Kaya destination (estimated to cost 94 million