SiS International Holdings Limited, an investment trading and investment holding company, engages in the distribution of mobile and information technology (IT) products in Hong Kong, Japan, Singapore, and Thailand. It distributes consumer electronic and networking products, computer systems, notebooks, tablets, smartphones, software products, and mobile software and solutions through telecommunications operators, IT superstores, retail outlets, value-added resellers, corporate dealers, system integrators, solutions providers, and mobile phone retail outlets. The company also invests in commercial, office, residential, mixed-use, and hotel properties, as well as provides asset management services. In addition, it offers hardware, software, and corporate management services; securities investment services; operates hotels; distributes communication products; and trades in mobiles and related products.