we company is in shanghai ,goods from the middle of china. major is tantalum niobium lithium rubidium cesium tungsten/wolfram etc. we would like hope to set up relation with you .because I have tantalum ore to sale, the meanwhile I want to know your price .please send e-mail to us .our goods which from yihun mine is the best quality at present in china .if you have inerest in ,I would like to look forward to hear you .