Korea Hydrographic and Oceanographic Agency (KHOA) 351, Haeyang-ro Yeongdo-gu Busan Republic of Korea KOREA, REPUBLIC OF =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Oct-2000 The National Oceanographic Research Institute of Korea was formerly (pre late-1990s) the Office of Hydrographic Affairs (same address). =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 17-May-2018 KHOA was formerly the National Oceanographic Research Institute