Henan Yanyuan Biotechnology Co., Ltd is one of agricultural companies which was established in May 2010, located in Zhengzhou city, Henan Province, China. It is an agricultural chemical enterprise that integrates scientific research, production, and sales. Our company adhere to the development purpose of "focusing on agriculture and meeting the needs of farmers", and hopes to provide quality assurance and affordable agricultural products for rural areas through advanced scientific research and g...