On Wednesday, Cameron arrived in Iceland for the Northern Future Forum, where he will have meetings with the heads of Iceland and Norway, as well as EU members of the group which include Denmark, Estonia, Finland, Latvia, Lithuania and Sweden.
"When the concrete proposal will be ready, I think, Finland and other Nordic countries will be very open to finding a solution for that," Finnish Prime Minister Juha Sipila told the BBC.
Estonian Prime Minister Taavi Roivas also told the BBC that the European Union was holding discussions with the United Kingdom on the "directions" of the reforms, but the details were yet to be revealed.
UK citizens are expected to vote in a referendum by the end of 2017 on a so-called Brexit, Britain’s exit from the European Union, as promised by Cameron during his pre-election campaign earlier this year. Cameron has repeatedly said that EU membership is beneficial for the United Kingdom, but only if the bloc implements new reforms. He pledged to achieve the reforms first, and then hold the referendum.
Prior the trip to Iceland, the UK prime minister stated that he would demand that the EU reform in the spheres of competition, sovereignty, social policy and economic regulation, but that the details of the demanded reforms would be released only in November.