Zhengzhou Sino-Crystal Diamond Joint-stock co., ltd was established in December, 2004, with registered capital 0.6 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. Zhengzhou Sino-Crystal Diamond Joint-stock co., ltd has strong capability of innovation. High quality synthetic diamond, special equipment and core technology of raw material are the number one in the industry. The main products are: synthetic diamond monocrystal and special equipment for big cavity synthetic diamond. There are two types of giant synthetic diamond press which are HJZZX and HJZZD. At the same time it has the technology of independent intellectual property rights and 64 items of state patent.It won two first prizes that are Henan province science and technology advancement and Zhengzhou city’s.

It passed the ISO9001:2000 quality management system certification in May, 2005.

 SC series was judged Henan top brand in 2006, with an annual output value of 0.4 billion carats. It has the right to import and export. The products are popular in home and abroad.

The company set up national enterprise technology center and provincial research center of diamond and products engineering technology. It also established accessory material, synthetic equipment, technics, diamond crystal and research center, testing room, etc under the help of nine scientific and research units and colleges. Through the research and development of whole system, we service the superhard material industry; testing center provides testing means for raw material, semi-finished products, finished- products. At the same time we adopt open service to provide test to industry and relevant field. The testing means are in line with international practice. It has more than 130 items of patent, among this four items are identified State Torch Project.

The testing center is the only laboratory which is approved by state in the superhard material industry. It symbolized that the testing capacity has approved by CNAS organization. The testing results are accepted by international and society. It is assembled with most advanced testing equipments to bear the testing items of accessory material, diamond finished- products.