Timor-Leste

Nuclear-weapon-free state

Participated in TPNW negotiations

Has not yet joined TPNW

Timor-Leste has signed but not yet ratified the Treaty on the Prohibition of Nuclear Weapons.

Dionisio Da Costa Babo Soares, Timor-Leste’s minister for foreign affairs, signed the treaty at a high-level ceremony on 26 September 2018. 

In a statement to the United Nations in October 2019, Timor-Leste said that it is “in the process of ratification”, as it views the treaty “as an important international norm for peace, our collective security, and preservation of human life”.

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

Timor-Leste 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, Timor-Leste 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”.

Timor-Leste 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.

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