Brunei

Nuclear-weapon-free state

Voted in favour of adopting TPNW

Has signed TPNW, but not yet ratified 

Brunei has signed but not yet ratified the Treaty on the Prohibition of Nuclear Weapons.

Erywan Pehin Yusof, the second minister for foreign affairs of Brunei, signed the treaty at a high-level ceremony on 26 September 2018.

Brunei participated in the negotiation of the treaty at the United Nations in New York in 2017 and voted in favour of its adoption.

Brunei has hailed the adoption of the treaty as “a vital step towards global nuclear disarmament”, noting that it complements earlier instruments relating to nuclear weapons. 

Brunei voted in favour of a UN General Assembly resolution in 2019 that welcomed the adoption of the treaty and called upon “all states that have not yet done so to sign, ratify, accept, approve, or accede to the treaty at the earliest possible date”.

In 2016, Brunei voted in favour of the UN General Assembly resolution that established the formal mandate for states to commence the negotiations in 2017 on “a legally binding instrument to prohibit nuclear weapons, leading towards their total elimination”.

Brunei was among 127 states that endorsed a “humanitarian pledge” in 2015–16 to cooperate “in efforts to stigmatise, prohibit, and eliminate nuclear weapons”. The pledge was instrumental in building momentum and support for convening the negotiations.

Brunei is a state party to the 1995 Treaty of Bangkok, which established Southeast Asia as a nuclear-weapon-free zone.


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