TPK Holding Co., Ltd. is principally engaged in the research and development, manufacture and distribution of touch modules. The Company's main products are medium- and small-sized touch panels. Its products are applied in mobile phones, portable media players (PMPs), personal navigation devices (PNDs), handheld game consoles, tablet personal computers (PCs), electronic books and digital photo frames, among others. The Company is also engaged in indium tin oxide (ITO) glass business. The Company distributes its products primarily in the Americas, Asia and others.