Transport in South Korea roads and various classifications below the national level. Almost all freeways are toll highways and most of the expressways are built, maintained and operated by Korea Expressway Corporation (KEC). The freeway network serves most parts of South Korea. Tolls are collected using an electronic toll collection system. KEC also operates service amenities (dining and service facilities) en route. There are also several privately financed toll roads. Nonsan-Cheonan Expressway, Daegu-Busan Expressway, Incheon International Airport Expressway, Seoul-Chuncheon Expressway and parts of the Seoul Ring Expressway are wholly privately funded and operated BOT concessions. Donghae Expressway was built in cooperation between KEC and
Korea Tungsten Company Korea Tungsten Company Korea Tungsten Company (KTC, Korean: 대한중석, pronounced "daehan jungsuk", Hanja: 大韓重石) was a major South Korean manufacturer of tungsten cutting tools, tungsten powder, and related metal-cutting products. It was the 28th-largest chaebol by asset with subsidiaries such as Korea Tungsten Construction and Korea Sintered Metal. With the national government, KTC also established POSCO, which is now the world's second largest steelmaker by output. In 1998, Keo-Pyung, then KTC's proprietor, defaulted on its loans and was declared bankrupt by its main creditor, CHB Bank. On May 12, 1998, Keo-Pyung announced that it would shed 14 of its 19