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Signatories

Sao Tome and Principe

On 22 September 2022, Sao Tome and Principe ratified the Comprehensive Nuclear-Test-Ban Treaty (CTBT). Ratification of the TPNW is pending. Sao Tome and Principe's Ministry of Foreign Affairs said in July 2021 that a ratification memorandum for the TPNW had been prepared and would soon be submitted to the Cabinet, after which the approval of the Parliament would be sought.[1]

TPNW Status

SIGNATURE
20 Sep 2017
DEPOSIT WITH UNSG
ENTRY INTO FORCE
DECLARATION
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 (2021)
Participated in 1MSP (2022) No
1MSP delegation size (% women) N/A
Adoption of TPNW (7 July 2017) Voted yes
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 (Signed 1996, Pelindaba)
Party to the NPT Yes (Acceded 1983)
Ratified the CTBT Yes (Ratified 2022)
Party to the BWC Yes (Acceded 1979)
Party to the CWC Yes (Acceded 2003)
IAEA safeguards and fissile material
Safeguards agreement Yes (31 Mar 2023)
TPNW Art 3(2) deadline N/A
Small Quantities Protocol Yes (Modified)
Additional Protocol Yes
Enrichment facilities/reprocessing plants No
HEU stocks No
Plutonium stocks No

Latest developments

Marking the International Day for the Total Elimination of Nuclear Weapons on 26 September 2022, the African Group in the UN, of which Sao Tome and Principe is a member, recalled the entry into force of the ‘landmark’ TPNW and reaffirmed its ‘full support’ for the declaration and action plan adopted at the Treaty's First Meeting of States Parties (1MSP). The African Group, moreover, urged ‘all members of the international community, especially nuclear-weapon states and those under the so-called nuclear umbrella, to seize the opportunity to sign and ratify the Treaty at an early date and to pursue the goal of a nuclear-weapon-free world’.2

Recommendations

  • Sao Tome and Principe should urgently ratify the TPNW.

1) Communications from the Ministry of Foreign Affairs to ICAN, 1 July 2021

2) http://bitly.ws/Bdih

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