Senior trade officials from Africa, the Caribbean and the Pacific meeting in Vanuatu have been urged to support the Pacific Island Countries Trade Agreement, or PICTA.
Opening the two-day meeting in Port Vila, Vanuatu's Minister of Trade, James Bule, said PICTA was an important agreement for all of the countries present.
He also said he expected Vanuatu to announce its readiness to trade under PICTA in the next few days.
Since PICTA was set up four years ago, only the Cook Islands, Fiji and Samoa have officially started trading under the agreement.
Kiribati, Nauru, Papua New Guinea, Solomon Islands, Tonga and Vanuatu are among those yet to begin.