The international spokesperson for the United Liberation Movement for West Papua says the group will submit its application to join the Melanesian Spearhead Group in February.
The ULM was formed in Vanuatu in December when three independence groups agreed to form a unified voice on political fronts.
A bid by West Papua to join the MSG was knocked back last year because the bid was not deemed to be representative.
The ULM's spokesperson, Benny Wenda, says once the latest bid is lodged, a massive campaign will be launched to try and gain West Papua admission.
"We are excited and I am really confident. Our people back home already support it that's why I hope that this is also really positive for our struggle and I hope our brothers and sisters across Melanesia and across the Pacific will pray for this."