Great Wall Technology Company Limited along with its subsidiaries is engaged in the development, manufacture, sale and research and development of personal computers (PCs) and information terminal products, storage products, power supply products, monitoring terminal, liquid crystal display television products and electronic manufacturing services business. It has six segments: the TV, which produces televisions; the monitor, which produces monitors; the electronic parts and components, which produces magnetic heads, switch power supplies, hard disk drives and disk substrates mainly for use in PCs; the computer, which produces PCs, printers, network electric meters and servers; the property investment, which invests in office space for its rental income potential, and the others comprises the sales of chassis, spare parts and complete knock down/semi knock down products and system integration. On December 23, 2010, it acquired additional 80% interest in HannStar Display (Wuhan) Corp.