OPINEAR, which is an inter-regional network consisting of numbers of international marine policy related research institutes, aims at sharing resources and experences between countries in East Asia Sea area, and building an interactive and cooperative network on research. The concept was initiated and agreed upon in Tokyo in 2008 and is being improved together with the structure of OPINEA. Member institutes attended the 3rd meeting include: Center for South East Asian Studies (CSEAS), Indonesia; Korea Maritime Institute (KMI); Maritime Institute of Malaysia (MIMA); Ocean Policy Research Foundation (OPRF), Japan; and S. Rajaratnam School of International Studies (RSIS), Singapore. Besides, PEMSEA is invited as observer to participate in the meeting and gives his suggestions.