At this month's Honiara summit, amid intense lobbying by Indonesia, MSG leaders deferred a decision on the United Liberation Movement for West Papua's application to become full members while adequate membership criteria is developed.
According to RNZ, Charlot Salwai said since last year membership criteria had been developed which stipulates full members needing to be a Melanesian state.
However, Mr Salwai said one of the full MSG members, New Caledonia's FLNKS Kanak movement, is not a state but a political movement aspiring for independence.