Topsoil Biotechnology Co.,Ltd was founded in 2010, located in Ningxia of China, where is the best humic acid origin of China. We covers an area more than 1000 acres,the purity of our humic acid product is above 65%, our company produces 50,000 tons/year of humic acids, which covers Potassium Humate,Sodium Humate,Potassium Fulvate,Humic fertilizer etc .We have exported to South Korea.India,United Stated,Malaysia,Thailand etc.we warmly welcome our foreign friends come and visit us sincerely.

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