The registered address of Beijing Kerui Sanmen Technology Co., Ltd. is located at 507, 5th floor, Building 1, No.1 Courtyard, Jinghai Sixth Road, Tongzhou District, Beijing. The registration authority is the Market Supervision Administration of Beijing Economic and Technological Development Zone, and the legal representative is Ma Hongliang. The business scope includes technology development, technology services, technology transfer, and technology consulting; Basic software services; Application software services (excluding medical software); Selling instruments, electronic products, computer software and hardware, and auxiliary equipment; Leasing instruments and electronic products; Repair instruments and meters (on-site repair only). (Market entities shall independently choose their business projects and carry out business activities in accordance with the law; for projects that require approval by law, they shall carry out business activities in accordance with the approved content after approval by relevant departments; they shall not engage in business activities prohibited or restricted by national and local industrial policies.)