Humica weihai international co.,ltd is specialized in manufacturing EDTA series, EDDHA FE, organic nutrients, plant growth hormone and related agrochemicals.Humica endeavors to produce the natural environmental friendly substance for modern agriculture and focus on adding value through the edging technology and the continuous innovation.Humica have its own laboratory, where our chemistry performs the pertinent analytical for the quality controls. These are realized on the raw materials as well as on our manufactured products. Also continuous controls are performed in order to guarantee the quality in all phases.Periodically or simply when the circumstances it requires the external services of credited laboratories are contracted.Our laboratory is part of our I+D area, working in the elaboration of formulation for the development of new products. These, later, are tested in field to obtain all the possible information and transfer it to the producer if the product comes into the