The Pacific Islands Forum leaders' meeting will go ahead in October in Tonga despite the hurdles faced following the riot last November.
A Forum secretariat team was in Nuku'alofa this week to discuss preparations with the Tongan government.
A spokesperson for the Tongan prime minister says they are confident they can run the event as scheduled.
The spokesperson, Lopeti Senituli, says the retreat is to be held on Vava'u, with the main meetings to be held in the convention centre, which has been recently constructed with assistance from China.
Last August, the Forum meeting planned in Tonga was cancelled because of concern over the health of the ailing King, Taufa'ahau Tupou IV, who died two weeks later.