The registered address of Guangdong Kolaijie Technology Co., Ltd. is located at Building 125, Dazu Yunfeng, Wuhe Community, Bantian Street, Longgang District, Shenzhen. The registration authority is the Shenzhen Market Supervision Administration, and the legal representative is Xu Xudong. The business scope includes the development, consulting, transfer, and services of environmental protection technology; Environmental engineering design and construction; Environmental information consulting and technical services; Disinfection and sterilization equipment and appliances (II), air filters, air conditioning filters, air purification equipment, exhaust gas purification equipment, energy-saving and environmental protection products, plastic products, environmental protection instruments and equipment research and development, sales, on-site installation, and technical services; Sales of Class I and Class II medical devices; House disinfection and disinfection technology consulting services; Domestic trade; Managing e-commerce; The import and export of goods and technology (excluding projects prohibited by laws, administrative regulations, and decisions of the State Council, and projects restricted must obtain a license before operation). ^Sales of three types of medical devices;