By the end of 1947, of uranium ore from the Belgian Congo was stockpiled for the Combined Development Trust at Springfields, near Preston in Lancashire, as part of a wartime sharing agreement, along with for British use. To gain access to the stockpile for their own nuclear weapons project, the Americans opened negotiations that resulted in the "Modus Vivendi", an agreement that was signed on 7 January 1948 and officially terminated all previous agreements, including the Quebec Agreement. It removed the British right of consultation on the use of nuclear weapons; allowed for limited sharing of technical information between the United States, Britain and Canada and continued the Combined Policy Committee and the Combined Development Trust although the latter was renamed the Combined Development Agency.