Wosem Co., Ltd is an engineering company speicalized in the field of biosafety that construct, design, maintain, validate BSL3. Our main business customers are government agencies, municipalitiesm and more. We expanded our business to medical device manufacturing in 2018 for preparing in case of bioterrorism, and high-risk pathogens spread by air. As a result, we developed Negative Pressure Carrier and obtained KGMP, ISO 13485, and CE.