Mozambique was admitted to the UN on 16 September 1975 and takes part in ECA and all the non-regional specialized agencies except IAEA. The country also belongs to the African Development Bank, G-77, and AU, is a member of the WTO, and has signed the Law of the Sea. Mozambique plays a leading role in the Southern African Development Community (SADC). Mozambique joined the IMF and its sister organizations, the IBRD, IDA, and IFC, in 1985.