The requested vessel with name CHOKO MARU and MMSI:0 and IMO:5071119 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
CHOKO MARU N/A 431401851 Sep 22, 2016 00:47 UTC
CHOKOUMARU N/A 431004031 Dec 07, 2017 11:50 UTC

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