Voted in favour of adopting TPNW
Has not yet joined TPNW
Sri Lanka has not yet signed or ratified the Treaty on the Prohibition of Nuclear Weapons. However, it participated in the negotiation of the treaty at the United Nations in New York in 2017 and voted in favour of its adoption.
Sri Lanka has promoted universal adherence to the treaty, including by voting in favour of an annual UN General Assembly resolution that calls upon all states to sign, ratify, or accede to the treaty “at the earliest possible date”.
In its first statement to the negotiating conference for the treaty in 2017, Sri Lanka said that “the solution to counter the challenge of nuclear weapons lies within multilateralism, in the collective will of the [UN] member states”.
In 2016, Sri Lanka was a co-sponsor of the UN General Assembly resolution that established the formal mandate for states to commence the negotiations in 2017 on “a legally binding instrument to prohibit nuclear weapons, leading towards their total elimination”.
Sri Lanka was among 127 states that endorsed a “humanitarian pledge” in 2015–16 to cooperate “in efforts to stigmatise, prohibit, and eliminate nuclear weapons”. The pledge was instrumental in building momentum and support for convening the negotiations.
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