The registered address of Shanghai Xichi Technology Co., Ltd. is Room 301, Floor 3, Building 1, No. 151, Daxiu Road, Pudong New Area, Shanghai. The registration authority is the Market Supervision Administration of Pudong New Area, and the legal representative is Yang Liyi. The business scope includes licensed projects: various engineering construction activities; Construction engineering design (for projects that require approval according to law, business activities can only be carried out with the approval of relevant departments, and specific business projects shall be subject to the approval documents or permits of relevant departments) General projects: technical services, technical development, technical consultation, technical exchange, technical transfer, and technical promotion; Sales of building decoration materials; Sales of lighting fixtures; Sales of building materials; Sales of refractory materials; Sales of specialized environmental protection equipment; Sales of gas and liquid separation and purification equipment; Wholesale of kitchen utensils, sanitary ware, and daily necessities; Retail of kitchen utensils, sanitary ware, and daily necessities; Sales of water quality pollutant monitoring and detection instruments and meters; Sales of household goods; Sales of electronic products; Sales of metal products; Organize cultural and artistic exchange activities; Professional cleaning, cleaning, and disinfection services; Sales of instruments and meters; Wholesale of hardware products; Advertising design and agency; Advertising production; Advertising release (non radio, television, newspaper publishing units); Conference and exhibition services (except for projects that require approval in accordance with the law, business activities shall be carried out independently with the business license in accordance with the law).