SMM3 5: Chongyi Zhangyuan Tungsten Industry Co., Ltd. in the first half of March long single offer as follows: 1. wolframite concentrate (WO3 ≥ 65%): 113000 yuan / standard ton (up 2000 yuan / standard ton from February) 2, Scheelite concentrate (WO3 ≥ 65%): 111500 yuan / standard ton (2000 yuan / standard ton higher than February) 3. ammonium paratungstate (national standard zero): 174000 yuan / ton (3000 yuan / ton higher than February) (SMM)