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Chagos Islands: Sovereignty

Asked by Mr Mark FrancoisConservativeForeign, Commonwealth and Development OfficeTabled Answered 11 June 2025UIN 56701

The question

To ask the Secretary of State for Foreign, Commonwealth and Development Affairs, with reference to paragraphs 1(a) to 1(c) of Article 11 of the document entitled UK/Mauritius: Agreement concerning the Chagos Archipelago including Diego Garcia (CS Mauritius No.1/2025), what estimate his Department has made of the net present value assuming a 2% inflation rate of the total amounts payable of the (a) annual sum, (b) capitalisation of a Trust Fund and (c) multi-year funding as part of a development framework.

Answered by Stephen Doughty

Full details of the methodology are set out in the Explanatory Memorandum laid alongside the Treaty. We have published the full costs alongside the Treaty and laid them in the House. The figures are verified by the Government Actuary's Department, drawing on long-established methodology used under this government and previous governments.

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