Jiangxi Green Top Biological Technology Co, Ltd. is a leading supplier of humic acid and related products with more than 15 years. Headquartered in Ganzhou. Our raw materials are lignite and leonardite from Shanxi, Xinjiang and Ningxia which enable us to produce humic acid, potassium humate, sodium humate, potassium fulvated, amino acid and other organic fertilizer formulations.