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South Sudan

South Sudan acceded to the Biological Weapons Convention (BWC) in April 2023. South Sudan abstained from voting on the annual UN General Assembly resolution on the TPNW in 2023, having voted in favour of it in 2021 and having been absent for the vote in 2022. South Sudan 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.

TPNW Status

TPNW Article 1(1) prohibitions: Compatibility in 2023
(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
UNGA resolution on TPNW (latest vote) Abstained (2023)
Participated in 2MSP (2023) No
1MSP delegation size (% women) N/A
Adoption of TPNW (7 July 2017) Did not vote
Participated in TPNW negotiations (2017) Yes
Negotiation mandate (A/RES/71/258) Did not vote
Other weapons of mass destruction (WMD) treaties
Party to an NWFZ No
Party to the NPT No
Ratified the CTBT No
Party to the BWC Yes (Acceded 2023)
Party to the CWC No
IAEA safeguards and fissile material
Safeguards agreement No
TPNW Art 3(2) deadline N/A
Small Quantities Protocol No
Additional Protocol No
Enrichment facilities/reprocessing plants No
HEU stocks No
Plutonium stocks No

Latest developments

In January 2023, South Sudan participated in an African regional seminar on universalisation of the TPNW in Pretoria, hosted by the South African foreign ministry.1

The Ministry of Foreign Affairs said in February 2020 that South Sudan supports the TPNW and the goal of abolishing nuclear weapons and intends to become a state party 'in due course'.2


  • South Sudan should urgently adhere to the TPNW.

  • South Sudan should adhere to the Pelindaba NWFZ Treaty.

  • South Sudan should conclude and bring into force a Comprehensive Safeguards Agreement and an Additional Protocol with the IAEA.

  • South Sudan should also adhere to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT), the Comprehensive Nuclear-Test-Ban Treaty (CTBT), and the Chemical Weapons Convention (CWC).

2) Meeting between the Ministry of Foreign Affairs of South Sudan and ICAN in Geneva, 27 February 2020.


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