Greenworks (Beijing) Technology Co Ltd is one of leading manufacturers of speciality products for agriculture & horticulture in China. We owned a high quality Leonardite mine in Northern China. The Leonardite from the mine is rich in high contained active humic acid as well as natural chelate metal elements. We are very proud of listing in Top 20 main suppliers of humic acid in the world. (see New Ag International 2003 ) At meantime, we are also manufacture amino acid based on vegetal protein like soybean, peanut and alfalfa. We also produce microelement supplements chelated by amino acid in order to provide high efficiency organic TE resource.