The dismantling did however continue, and in 1949 West German Chancellor Konrad Adenauer wrote to the Allies requesting that it end, citing the inherent contradiction between encouraging industrial growth and removing factories and also the unpopularity of the policy. Support for dismantling was by this time coming predominantly from the French, and the Petersberg Agreement of November 1949 reduced the levels vastly, though dismantling of minor factories continued until 1951. The final limitations on German industrial levels were lifted after the establishment of the European Coal and Steel Community in 1951, though arms manufacture remained prohibited.