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Introducing the law on Mongolia's accession to the TPNW, which was adopted by the parliament on 22 October 2021, Battsetseg Batmunkh, the Foreign Minister of Mongolia, said that joining the TPNW would strengthen Mongolia's position on nuclear disarmament and non-proliferation and 'meet the fundamental interests of national security'.[1]

10 Dec 2021 (Accession)
10 Mar 2022
Received 25 Mar 2022
TPNW Article 1(1) prohibitions: Compliance in 2021
(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
2021 UNGA resolution on TPNW
2020 UNGA resolution on TPNW
2019 UNGA resolution on TPNW Voted yes
2018 UNGA resolution on TPNW Voted yes
Participated in TPNW negotiations Yes
Share of women in TPNW negotiations 50%
Vote on adoption of treaty text Voted yes
Adoption of TPNW (7 July 2017) Voted yes
IAEA safeguards and fissile material
Safeguards Agreement Yes
TPNW Art 3(2) deadline N/A
Small Quantities Protocol Yes (Original)
Additional Protocol Yes
Fissile material production facilities No
Highly enriched uranium stocks No
Plutonium stocks (mil/civ) No/No
Related treaties and regimes
Party to the BWC Yes
Party to the CWC Yes
Party to the PTBT Yes
Ratified the CTBT Yes
Party to the NPT Yes
Party to a NWFZ Yes (unilateral)
Member of the CD Yes

Latest developments

In a statement to the 2021 UN General Assembly's High-Level Plenary Meeting to Commemorate and Promote the International Day for the Total Elimination of Nuclear Weapons, Mongolia said: 'The Treaty on the Prohibition of Nuclear Weapons (TPNW) is instrumental in achieving the objectives of the total elimination of nuclear weapons. Nuclear weapons continue to pose a serious threat to humanity, thus the Treaty’s entry into force in January 2021 set a milestone in the international efforts in banning these disastrious weapons.2

Mongolia was one of the co-sponsors of the 2021 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'.3


  • Mongolia should continue to encourage other states to adhere to the TPNW.
  • Mongolia should ensure that all the TPNW obligations are implemented domestically, through legal, administrative, and other necessary measures.
  • Mongolia should upgrade to a Modified Small Quantities Protocol with the IAEA.
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