Nov 21, 2012 The African continent accounts for about 19% of tantalum ore reserves (Salazar and McNutt, 2011), with the most significant deposits occurring in central Africa. While neither tantalum nor niobium is mined on a large scale in South Africa, up to 200 tonnes/month of unprocessed ore may reach South African borders from countries such as Zimbabwe, Mozambique and the rest of Africa. Thus, there is a substantial Tantalum-ore directory Tantalum-ore manufacturers, suppliers Tantalum-ore buyers, importers, wholesalers, distributors. ... Zinc oxide, Tantalum and Niobium available. Cendresgroup. BJ Contact Now. High quality ore dressing machine shaking table. Zhengzhou Z-land Heavy Industry.