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States Parties


Addressing the First Meeting of States Parties to the TPNW (1MSP) in Vienna in June 2022, Malaysia described the meeting as ‘a gathering of particular moment in our collective endeavours to achieve a world free of nuclear weapons’, adding that the TPNW ‘is undoubtedly a significant contribution to the global disarmament and non-proliferation architecture’.[1]

TPNW Status

20 Sep 2017
30 Sep 2020 (Ratification)
22 Jan 2021
Received 17 Feb 2021
TPNW Article 1(1) prohibitions: Compliance in 2022
(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 1MSP (2022) Yes
1MSP delegation size (% women) 10 (30%)
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 Yes (Ratified 1996, Bangkok)
Party to the NPT Yes (Ratified 1970)
Ratified the CTBT Yes (Ratified 2008)
Party to the BWC Yes (Ratified 1991)
Party to the CWC Yes (Ratified 2000)
IAEA safeguards and fissile material
Safeguards agreement Yes (29 Feb 1972)
TPNW Art 3(2) deadline N/A
Small Quantities Protocol No (Rescinded 2018)
Additional Protocol No (Signed 2005)
Enrichment facilities/reprocessing plants No
HEU stocks No
Plutonium stocks No

Latest developments

Together with South Africa, Malaysia was appointed by the 1MSP as a co-chair of an informal working group responsible for promoting universalisation of the TPNW. In this capacity, it co-facilitated a high-level signing and ratification for the TPNW in the margins of the 77th session of the UN General Assembly in September 2022. Five states signed and two ratified the Treaty on this occasion.2

At the Tenth Review Conference of the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) in August 2022, Malaysia welcomed the TPNW’s entry into force and the convening of its 1MSP, and said that it ‘remains convinced that the TPNW complements and strengthens the NPT, by constituting effective legal measures under Article VI of the NPT’.3 In a closing statement to the NPT Review Conference, Malaysia and 64 other TPNW supporters urged ‘all states committed to attain and maintain a world without nuclear weapons to join the TPNW without delay’.4

Marking the International Day for the Total Elimination of Nuclear Weapons on 26 September 2022, the Minister of Foreign Affairs of Malaysia, Saifuddin Abdullah, said that the TPNW ‘is underpinned by strong ethical and security imperatives and rests on a firm legal foundation’. He called on ‘all states that have not yet done so to join the Treaty’ and said that Malaysia stands ready ‘to engage with them towards this end’.5

In the First Committee of the UN General Assembly in October 2022, Malaysia commended the TPNW’s newest signatories and states parties ‘for having taken an important step in consolidating the Treaty, which will undoubtedly continue to grow in strength’.6


  • Malaysia should continue to encourage other states to adhere to the TPNW.

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

  • Malaysia should bring into force its Additional Protocol with the IAEA.

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