Shanghai Vitalyield Biotech Co., Ltd. is a manufacturer specialized in humic acid & humate products. We are committed to R&D, manufacture, sales and service for high quality mineral source(Leonardite) humic acids based products. We aim to provide better products and service to global customers. The main products include series of Humic Acid, Sodium Humate, Potassium Humate, Potassium Fulvate, Fulvic Acid, Boron Humate, and so on.