Chief Minister and Cabinet Office Minister attended events in July
Attending meetings in London and the British-Irish Council last month cost government almost £4,000.
Chief Minister Alfred Cannan held talks in Westminster on 7 July, before he and Cabinet Office Minister Kate Lord-Brennan travelled to the BIC summit in Guernsey.
Details published on the government website show three officers accompanied the ministers on the trip, with expenses coming to £3,772.80.
Coming to more than £1,900, travel was the biggest expense, with more than £1,600 spent on hotels and £180 on meals.
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