Regarding to your recently information about the Arsenic content, Recently production 12 charge’s concentration of Arsenic content is about 37ppm level. unfortunately as we random three sample which came from three charges from twelve to reconfirm the arsenic content as HQ confirmed by ICP-OES method, the result shown that the arsenic content are still height(137,141 and 148ppm) that quite differ from HQ confirmed(37ppm) the details of three sample which came from three chart number