Importers on Nauru have a new range of charges to pay following the establishment of a bonded warehouse run by an offshore military logistics company.
The Nauru government says it has engaged the company RCI to set up, manage and operate the store.
It says RCI, which has offices in Australia, will also provide local employment and training and help improve the island's infrastructure.
Nauru is heavily reliant on imports including food, fuel, building materials and machinery.
The new charges, which took effect this month, are being levied on all goods passing through the port.
The charges come as economic activity on Nauru increases due to Australia's establishment there of an offshore processing centre for asylum seekers.