Humic Acid, Humate, Potassium Humate manufacturer / supplier in China, offering Leonardite Source Humic Acid Humizone Ultra Potassium Humate Organic Fertilizer, 100% Water Soluble Vaa45-P Vegetal Source Amino Acid Fertilizer, 100% Water Soluble Vaa60-P Vegetal Source Amino Acid Fertilizer and so on.