The Taiwan Strait Express-1 (TSE-1, also known as Tanshui-Fuzhou Submarine Cable) is the first submarine cable across the Taiwan Strait, linking Tanshui, Taiwan island and Fuzhou, mainland China. The TSE-1 submarine cable is about 270 Km, consists of 8 optical fiber pairs. The cable was ready for service in 2013 and provides a direct fiber-optic link between the two countries, enhancing communication infrastructure. Fuzhou, China Tanshui, Taiwan The cable is owned by a. The Submarine Cable Map is a free and regularly updated resource from TeleGeography.