South Korea has been called on by Pacific Island countries to fit out its fishing fleets with the Vessel Monitoring System, or VMS.
The VMS is the region's main weapon for monitoring the activities of distant fishing nations.
But none of the more than 100 South Korean boats in the Pacific is fitted with VMS.
The Papua New Guinea Foreign Minister Sir Rabbie Namaliu, who is one of the Pacific's panellists at the Post Forum Dialogue in Samoa, says South Korea was asked ensure the VMS is carried.
"That particular issue was raised with them and we obviously expressed our concern and we urged very strongly to abide by the previous decision to have them be part of that system and to report as required."
Sir Rabbie Namaliu, the foreign minister of Papua New Guinea