Henan Huanghe Whirlwind Co., Ltd

HHW was founded in 1979, and listed on the Shanghai Stock Exchange in 1998. The company is a National High-tech Enterprise with one National Enterprise Technology Center and one Postdoctoral workstation, and owns 22 subsidiary companies located in Changge, Zhengzhou and Shanghai. Among the 5000 staff, there are 1260 technicians, 72 master's graduates, and 22 Ph.D. graduates. Its plant area covers 2 square kilometers; the company floor is 1 square kilometer, and its building area is 350, 000 square meters. 1.5 billion carats synthetic diamond annual productivity makes us the largest diamond manufacturer in the world. Our products have occupied more than half of the domestic market and now we are expanding the international market actively. HHW is also regarded as one of the best diamond tools manufacturers in China, because all our diamond saw blade and core drill produce lines are import from DR. Fritsch, Germany, and our grinding wheel and wire saw factories are joint venture with Japan ***** Company.