Questions of British demands for incentives to stay in the European Union are expected to dominate when French President Francois Hollande meets with British Prime Minister David Cameron later Monday.
The session, announced by Hollande's office on Monday, is billed as a chance for the two to prepare for a European Council session later this week.
Cameron has been seeking to drum up support for a package of EU reforms on immigration, competitiveness, economic governance and sovereignty. He has threatened to campaign against Britain remaining in the EU during an expected national referendum if the reforms aren't accepted.
But France has been an outspoken critic of the threat of the so-called Brexit; its politicians have repeatedly rejected London's demands.
Last week, Prime Minister Manuel Valls said that the bloc did not need an additional crisis, adding that, as an EU member, Britain could not "dictate its conditions."
Hollande met earlier Monday with European Council President Donald Tusk, who was also on a whirlwind diplomatic tour to whip up support for his compromise proposals.
An EU source, who spoke on the condition of anonymity, said Tusk and Hollande looked at the agenda items for the summit later this week, going through outstanding political issues regarding Britain. The source added that the meeting made progress on finding solutions to French concerns over a settlement with London.
The French president is set to meet with Cameron at 7 pm (1800 GMT) Monday.