The requested vessel with name TAI HUNG SAN and MMSI:0 and IMO:7373121 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
TAI HUNG SAN 9559406 565352000 RASTANURA,SA Jan 19, 2018 21:44 UTC

Also, you may try to find the vessel in our comprehensive Vessels Database or track this ship on the map.