Zhengzhou Sino-Crystal Diamond Joint-stock co., ltd was established in December, 2004, with registered capital 114 million, which is located in No.24, Dongqing Street, Zhengzhou High & New Technology Industries Development Zone. It is a unit which is under the Research Center of Zhengzhou Diamond and Related Products Engineering Technology, as well as a leading enterprise of state superhard material industry base, state high & new technology enterprise and fifty well-developed enterprises in Henan province.
With the belief of independent innovation and development, Sino-Crystal has always taken innovation ability as competitive means and achieved outstanding innovative achievements since its establishment. So far, Sino-Crystal has been awarded 142 domestic patents, at the same time taken part in instituting the standard of industry. The main products are: synthetic diamond mono-crystal and special equipment for big cavity synthetic diamond. There are two types of giant synthetic diamond press which are HJ-650 and HJ-1000. It won two first prizes that are Henan province science and technology advancement and Zhengzhou city.