GeneChem has developed health-related functional materials and innovative drugs such as functional oligosaccharides, new bio-drugs and gene therapy based on nucleic acid chemistry, phosphate chemistry and glycosylation technology for the past ten years. Recent development of biotechnology sheds light on the new biological activity of various saccharides located in the outer cell membrane. These oligosaccharides play very important roles like the transfer of biological information, interaction between cells, anti-viral and anti-bacterial activities, the activation of the immune system, and etc. Especially, Sialyllactose, a functional oligosaccharide, is the representative case among those that GeneChem has been researching and developing extensively for the last 5 years. Sialyllactose is a functional oligosaccharide that exists a little in beestings, but not at all in milk, whereas in human milk, abundant. Not only does it protect the infant from infectious bacteria or virus, but is also known to construct an internal immune system and do important role of the brain develop brain. Recently, GeneChem developed the new platform technology of large-scale production of HMO(Human Milk Oligosaccharides) including sialyllactose based on the enzymatic method. The first demonstration for showing GeneChem's ability is the massive production and commercialization of Sialyllactose, one of the most important functional oligosaccharides presenting in human milk.presenting in human milk.