Henan Zhengzhou Mining Machinery Co., Ltd, was established in 1956 and located in Xingyang of Zhengzhou City of Henan Province, specially produces metallurgical machinery. It covers an area of more than 55000m2 and various building area of 28000 m2. It has the annual income of more than RMB180million in 2008 and now the fixed assets of over RMB80 million. In the plant, there are branches and workshops of cast iron, cast steel, forging, heavy machine tool processing, rivet welding and heat treatment etc. Its perfect and complete equipment, advanced detection means, strong technical force establish good foundation for the reliable production.

Henan Tongda Heavy Industry Science And Technology Co., Ltd., which is a famous and large enterprise specialized in researching and developing, designing, manufacturing and selling organic and compound fertilizer equipment, was founded in 1983 and registered "Tongda" as brand in 2003. In 2004, the company was expanded to Xingyang Longgang Development Zone covering a standardized heavy industrial plant of 60, 000 square meters. At the same time, the international advanced large and medium-sized gold processing equipment have been introduced, including 10 processing centers and 3 sets of laser cutting machines, more than 100 sets of all kinds of equipment in total.