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States parties

Timor-Leste

In a statement marking the International Day for the Total Elimination of Nuclear Weapons on 26 September 2023, Timor-Leste warned that ‘insecurity is growing in the face of the rising threat of nuclear war’. It said that it ratified the TPNW and the Comprehensive Nuclear-Test-Ban Treaty in 2022 as an expression of its commitment to the goal of a nuclear-weapon-free world.[1]

TPNW Status

SIGNATURE
26 Sep 2018
DEPOSIT WITH UNSG
20 Jun 2022 (Ratification)
ENTRY INTO FORCE
18 Sep 2022
DECLARATION
Received 17 Mar 2023
TPNW Article 1(1) prohibitions: Compliance in 2023
(a) Develop, produce, manufacture, acquire Compliant
Test Compliant
Possess or stockpile Compliant
(b) Transfer Compliant
(c) Receive transfer or control Compliant
(d) Use Compliant
Threaten to use Compliant
(e) Assist, encourage or induce Compliant
(f) Seek or receive assistance Compliant
(g) Allow stationing, installation, deployment Compliant
TPNW voting and participation
UNGA resolution on TPNW (latest vote) Voted yes (2023)
Participated in 2MSP (2023) Yes
1MSP delegation size (% women) 2 (0%)
Adoption of TPNW (7 July 2017) Voted yes
Participated in TPNW negotiations (2017) Yes
Negotiation mandate (A/RES/71/258) Voted yes
Other weapons of mass destruction (WMD) treaties
Party to an NWFZ No
Party to the NPT Yes (Acceded 2003)
Ratified the CTBT Yes (Ratified 2022)
Party to the BWC Yes (Acceded 2003)
Party to the CWC Yes (Acceded 2003)
IAEA safeguards and fissile material
Safeguards agreement Yes (25 Sep 2024)
TPNW Art 3(2) deadline 18 Mar 2024 (Met 24 Sep 2024)
Small Quantities Protocol Yes (Modified)
Additional Protocol Yes
Enrichment facilities/reprocessing plants No
HEU stocks No
Plutonium stocks No

Latest developments

In the First Committee of the UN General Assembly in October 2023, Timor-Leste reiterated its ‘concern on the catastrophic humanitarian impact from the use of nuclear weapons’ and welcomed the convening of the First Meeting of States Parties to the TPNW (1MSP) in 2022, which ‘was able to lay a solid foundation in complementing and strengthening the NPT’.2

Timor-Leste participated in the Second Meeting of States Parties to the TPNW (2MSP) in November and December 2023 but did not make a statement.

In accordance with Article 2 of the TPNW, Timor-Leste submitted a declaration to the UN Secretary-General on 17 March 2023 confirming that it does not own, possess or control nuclear weapons, has never done so, and does not host any other State’s nuclear weapons on its territory.3 It also took steps in 2023 towards bringing into force its Comprehensive Safeguards Agreement and Additional Protocol with the IAEA.4

Timor-Leste was one of the co-sponsors for the 2023 UN General Assembly resolution on the TPNW, which 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’.5

Recommendations

  • Timor-Leste should continue to encourage other states to adhere to the TPNW.

  • Timor-Leste should ensure that all the TPNW obligations are implemented domestically, through legal, administrative, and other necessary measures.

  • Timor-Leste should bring into force its Comprehensive Safeguards Agreement and Additional Protocol with the IAEA.

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