Our company, Dae-Sung Ceramic Research Institute, produces antibacterial ceramics, disinfectant and deionizer as major products. Pang-I cera ( our brand name ) was proven safe to human body by passing the innoxious, ames assay, acute oral toxicity, acute skin irritation tests of Korea National Authorized Laboratory. We acquired the S.F ( Sanitary Finished ) Mark applying Pang-I cera to water bottles, chopping board, crayon, tableware, and enamel. These products are popular in the international trade market. We also invented photocatalyst TiO2 ceramics, one of the most important technical innovation in this field. Our company was selected as a predominant venture business. Now we are concentrating on inventing new functional material.