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States Parties


On the occasion of Guinea-Bissau's deposit of its instrument of ratification of the TPNW with the UN Secretary-General on 15 December 2021, the Foreign Minister of Guinea-Bissau, Suzi Barbosa, said: 'The ratification of the [TPNW] constitutes the last and important step towards the unequivocal affirmation of Guinea-Bissau's commitment to a world free of nuclear weapons.'[1]

26 Sep 2018
15 Dec 2021 (Ratification)
15 Mar 2022
Received 23 Feb 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 No data available
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 Yes
Party to the NPT Yes
Party to a NWFZ Yes (Pelindaba)
Member of the CD No

Latest developments

Guinea-Bissau 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'.2

In the 2021 UN General Assembly, Guinea-Bissau associated itself with a statement in the First Committee by the African Group, which said: 'Given the slow progress and frustration that has characterized nuclear disarmament for so many years, The TPNW marks a watershed in the drive to rid the world of nuclear weapons. [...] It is our hope that the nuclear weapon states and those under the so-called nuclear umbrella would seize this opportunity to sign and ratify the treaty as well as pursuit the goal of a nuclear weapon free world'.3


  • Guinea-Bissau should continue to encourage other states to adhere to the TPNW.
  • Guinea-Bissau should ensure that all the TPNW obligations are implemented domestically, through legal, administrative, and other necessary measures.
  • Guinea-Bissau should bring into force its Comprehensive Safeguards Agreement with the IAEA by its deadline under the TPNW's Article 3(2), which is 15 September 2023. It should also bring into force its Additional Protocol.
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