Xiamen ISO Standard Sand Co., Ltd. was founded in 1999 and is the only enterprise designated by Chinese government to produce and sell China ISO Standard Sand. It is stock held by China National Materials Group Corporation (SINOMA). China ISO Standard Sand is produced according to ISO 679 and EN196-1. The company has highly automatic production lines of ISO Standard Sand and has established a perfect quality control system. It ensures the stable quality of China ISO Standard Sand through standardization of the flow of production and strict quality control. The company has passed ISO9001 and OHSAS 18001 authentication. China ISO Standard Sand is Reference Material ***** China. It is manufactured and packaged under the supervision of China Building Materials Academy and China National Center for Quality Supervision and Test of Cement. The company�s annual capability of China ISO Standard Sand is 35, 000 tons, and the ISO Standard Sand produced by the company has been exported to Korea, Malaysia, Egypt, Saudi Arabia and other countries and regions. Main customers include Lafarge, Holcim, and so on.