The conference was attended by the Foreign Ministers of the six Member States of the European Coal and Steel Community (ECSC).
Chairman of the conference was Johan Willem Beyen, then Netherlands Minister for Foreign Affairs.
Spaak informed his colleagues of the difficulties on transport and conventional energy (coal, oil) and paid attention also to agricultural issues.
As a result, Spaak requested two more months in order to prepare his final report.
Although progress had been made, the press release lead to the conclusion that the committee had run into an impasse.