Manufacturing and sales of wires, cables, optical fibers, and optical cables, and export of the company’s products; import of raw and auxiliary materials, mechanical equipment, instruments, and spare parts required for the company’s production and scientific research; manufacturing and sales of metal wires and their products, and electrical equipment; vehicle leasing; photovoltaic power generation (subject to relevant approval documents); technical services, technology transfer, and technical consulting for oil well cables. Licensed items: road freight transport (excluding dangerous goods).