Headquarters 416 Hwagok-ro, Gangseo-gu, Seoul, The Sky Valley 5th Building, Rooms 1319-1325 Tel 02-780-2323 A/S 1533-4569 Fax 02-780-0169 Electronic Whiteboard/Logitech Demonstration Room Rooms 1327-1328 LED Display Demonstration Room Room B114 Factory Room B108 Gimpo Factory and Warehouse 207 Wolha-ro, Wolgot-myeon, Gimpo-si, Gyeonggi-do