Batting first, the Garamuts set Vanuatu a target of 136 to win. Runs came from Vagi Karaho (24), Nou Reva Rarua (18) and Leke Morea (16).
Obed Yosef was key for Vanuatu with figures of 4/28.
In their pursuit, Vanuatu were stopped short being bowled out for a measly 105 inside 33 overs. Bethan Moli top scored for his side with 23 runs next to his name.
The chief destroyers for the Garamuts were James Junior Tau (3/27), Leke Morea (2/14), Sema Igo Kamea (2/14) and Toua Morgan (2/7).
Vanuatu: 105 33.5/50 ov RR: 3.10
Papua New Guinea: 136 42.3/50 ov RR: 3.20