United Nation IGO is an inter-governmental organization (IGO) legally established by diplomatic treaties under the Resolutions of Vienna Convention on Laws of Treaties to promote international co-operation & alliance as Inter-Governmental Agency with United Nations Organizations ONU and Registered Treaty Organizations with United Nations Secretariat, United Nations Development Programme, Asian Development Bank (ADB), CTBTO Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization, International Labour Organization (ILO) , International Trade Centre (ITC), Organization for the Prohibition of Chemical Weapons (OPCW), United Nations Children's Fund (UNICEF), United Nations Office for Project Services (UNOPS), World Food Programme (WFP), World Health Organization, World Intellectual Property Organization (WIPO) and WTO World Trade Organization with universal jurisdictions of the international law and official powers and authorities which are fully binding upon all countries (UN International Jurisdictions, Articles 3, 9.4) thereby processing inherent judicial sovereignty analogous to statehood, by force & effect of "Customary International Law".United Nation IGO is an inter-governmental organization (IGO) as an instrumentality exercising the sovereign authority of its member states, thus possessing autonomous statehood (UN Jurisdictional Immunities of States, Article 2.1(b)(iii), Article 5), conducting external affairs as an institution of its member states, thus holding full sovereign privileges and immunities (UN Inadmissibility of Interference in Affairs of States, Preamble: Point 1, Section 2(e), Section 3(a)), as a non-territorial state (UN Diplomatic Relations, Articles 1(i), 3.1(a)). Under conventional international law, nation states become member states of an inter-governmental organization (IGO) specifically by "ratification", "acceptance", and "accession" to its Charter (UN Convention on the Law of Treaties, Articles 2.1(b), 11, 16).