At this time , Japanese migrants in Rabaul and the neighbouring islands joined Komine and worked for him .
Komine secured a thirty - year land lease from Hahl to build a shipyard on Rabaul in 1907 , in addition to several other land concessions for copra plantation .
At this time , Japanese migrants in Rabaul and the neighbouring islands joined Komine and worked for Komine .
Komine secured a thirty - year land lease from Hahl to build a shipyard on Rabaul in 1907 , in addition to several other land concessions for copra plantation .