Jaruary 10,2007,China Commodity Grade Research Institute, a domestic authoritive independent grade research organization, published the ranking announcement of《China’s 500 Most Valuable Trade Mark》. Diamond Brand is ranked among it. There were 17 trade mark from Hunan province among it.
　　In recent years,ZCC gives its more attention to the fostering and protection of the Diamond brand.Diamond brand is the first one recognized as the China’s renowned brand by the national competent authorities in Hunan province and also in the china’s cemented carbide trade. Not long ago,ZCC is rewarded a praise by the provincial government for its outstanding results in the management of trade mark.