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It is believed that the question of whether Mauritius will adhere to the TPNW was still under consideration in the government in 2021. Mauritius voted in favour of the adoption of the TPNW in the UN Diplomatic Meeting in 2017 and has consistently voted in favor of the annual UN General Assembly resolutions on the Treaty, including in 2021.

TPNW Article 1(1) prohibitions: Compatibility in 2021
(a) Develop, produce, manufacture, acquire Compatible
Test Compatible
Possess or stockpile Compatible
(b) Transfer Compatible
(c) Receive transfer or control Compatible
(d) Use Compatible
Threaten to use Compatible
(e) Assist, encourage or induce Compatible
(f) Seek or receive assistance Compatible
(g) Allow stationing, installation, deployment Compatible
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 20%
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 (Modified)
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 No
Party to the NPT Yes
Party to a NWFZ Yes (Pelindaba)
Member of the CD No

Latest developments

Speaking in the 2021 UN General Assembly's High-Level Plenary Meeting to Commemorate and Promote the International Day for the Total Elimination of Nuclear Weapons, the Prime Minister of Mauritius, Alan Ganoo, noted the entry into force of the TPNW and described the Treaty as 'among the outstanding achievements of the United Nations'.1

Mauritius maintains policies and practices that are compatible with all of the prohibitions in Article 1 of the TPNW, and can therefore sign and ratify or accede to the Treaty without the need for a change in conduct.

ICAN's partner organizations met with the then Prime Minister of Mauritius, Pravin Kumar Jugnauth, on 27 August 2020 to discuss the TPNW.2 He noted the problem of the colonial administration of the Chagos Islands by the United Kingdom and Mauritius' lack of control over this archipelago, which includes a US air base on Diego Garcia. This dispute over sovereignty of part of Mauritian territory would not prevent Mauritius from adhering to the TPNW, however. Without effective control of the Chagos Islands, Mauritius is precluded from being able to implement the TPNW across those territories. If it secures full sovereignty over the Chagos Islands, it would need to seek the removal of any unlawful weapons and prohibit any unlawful activities by any States not party to the TPNW on that territory.


  • Mauritius should urgently adhere to the TPNW.
  • Mauritius should also sign and ratify the CTBT.
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