Changsha Zheng Li Biological Technology Co.,Ltd. relies on Hunan Agricultural University, Ningxia University and Chinese Academy of Sciences and other research institutes, specializing in research & development, manufacturing and trading of humic acid products for nearly 15 years. Our factories are certified with ISO9001:2015, applied to REACH, FSC, CE, ROHS, FDA standards and inspected by ITS, SGS, TUV, AQM, BSCI, etc. Our products are widely used in livestock, poultry & aquatic feed, therapeutic feed additives, aquatic animal protection, organic fertilizers, soil improvement, industrial ceramics, biomedicine industries, etc. It has three humic acid factories covering an area of more than 90,000 square meters, with an annual output of more than 100,000 tons of humic acid products.
The company's leading products are: Sodium humate, Feed grade sodium humate, Feed grade coated sodium humate, Neutral sodium humate, Potassium humate, Magnesium humate, Silicon humate,Phosphorus humate, Ammonium humate, Boron humate, Nitro humic acid, Humic acid urea, Fulvic acid, etc. many of which have obtained exclusive patents.
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