As WMO Information System, GISC Seoul is operated by the Korea Meteorological Administration (KMA). GISC Seoul is exchanging metadata with GISC Tokyo, GISC Toulouse, GISC Offenbach, GISC Melbourne, GISC Beijing, GISC Exeter, GISC Moscow, GISC Washington, GISC Tehran, GISC Brasilia, GISC NewDelhi, GISC Casablanca, GISC Pretoria and GISC Jeddah. GISC Seoul serves WMO Essential and Additional data, as defined under WMO Resolutions, 40(Cg-XII) and 25. Especially, GISC Seoul provides a decoding service of most need GTS data such as SYNOP, SHIP, TEMP, BUOY and AMDAR.