Engreen Biosystem is a registered company and manufacturer of research-use bio-chemical reagents. Our company has been established for 9 years and enjoyed great reputation around the world. We specialize in cell transfection, cell culture, protein expression and virus transfection.We offer a comprehensive range of kits and reagents to meet researchers&＃39; needs. Our research team consist of experienced molecular biologists, material scientists, chemical synthesis and engineering experts.They combine the actual needs of biomedical research and the cutting edge materials technology, chemical synthesis technology to make high quality reagents, which continually earned good reputation among the biological research field.