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State with nuclear-free security policy

Finland did not participate in the TPNW negotiations and has not adhered to the Treaty, but has consistently abstained on the UN General Assembly resolutions on the TPNW in 2018, 2019, and 2020. Finland maintains policies and practices that are compliant with all of the prohibitions in Article 1 of the Treaty, and can therefore sign and ratify it without making changes to existing practices or policies.

TPNW status
Not signed, not ratified, not acceded
Compatibility with prohibitions in TPNW Article 1(1)
Art 1(1)(a) Develop, produce, manufacture, acquire Compatible
Test Compatible
Possess or stockpile Compatible
Art 1(1)(b) Transfer Compatible
Art 1(1)(c) Receive transfer or control Compatible
Art 1(1)(d) Use Compatible
Threaten to use Compatible
Art 1(1)(e) Assist, encourage or induce Compatible
Art 1(1)(f) Seek or receive assistance Compatible
Art 1(1)(g) Allow stationing, installation, deployment Compatible
TPNW voting and participation
Vote on negotiation mandate (A/RES/71/258) Abstained
Participated in treaty negotiations (% women) No (N/A)
Vote on adoption of treaty text N/A
Last vote on UNGA resolution Abstained
Fissile material
Fissile material production facilities No
Highly enriched uranium stocks No
Plutonium stocks (military/civilian) No/No
Related treaties and regimes
Party to the NPT Yes
Party to a NWFZ No
Ratified the CTBT Yes (Annex 2 state)
Party to the PTBT Yes
Member of the CD Yes
IAEA CSA in force Yes
IAEA AP in force Yes
Party to the CWC Yes
Party to the BWC Yes

Latest developments

The Committee on Foreign Affairs in the Finnish Parliament gave a statement on the TPNW in June 2018. According to the Committee, the TPNW 'supports and complements' the NPT and CTBT. The TPNW 'could lead to changed expectations, priorities and views also in states outside of the treaty.' The Committee argued that Finland should 'continue to analyse the contents of the treaty and compare it to other central initiatives in the area.' The Committee did not offer a recommendation with respect to adherence or not, but concluded that Finland should cooperate with Sweden and monitor the Swedish stance on the TPNW. In a speech on August 25, 2020 Finland's Prime Minister Sanna Marin stated: 'We participate in the dialogue concerning the Treaty to Prohibit Nuclear Weapons. Finland is committed to nuclear disarmament and promotes it through the Non-proliferation Treaty.' Three of the five political parties in Finland's coalition government have indicated their support for the TPNW: the Finnish Social Democratic Party, the Green League and the Left Alliance. The former Finnish Foreign Minister Erkki Tuomija has called on the government to join the TPNW. Since 1987 Finland has had national legislation in place (in its Nuclear Energy Act) which forbids the importation, manufacturing, possession and detonation of nuclear explosive devices in Finland. See:,,,


  • Finland should urgently sign and ratify the TPNW, and encourage other states to adhere to the Treaty.
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