In 1951, in connection with the debates on the ratification of the Treaty establishing the European Coal and Steel Community (ECSC), Louis Lacoste, chief representative of the Metal Workers' Association, outlines the dangers of the Schuman Plan for the French steel industry.

On 14 June 1951, the Metz weekly newspaper L’Avenir de l’Est leads with the numerous dangers of the Schuman Plan for the French coal and steel industries.

1951 analysiert der französische Politiker und ehemalige Premierminister Pierre-Etienee Flandin die wirtschaftlichen und politischen Aspekte des Schuman-Plans und äußert zahlreiche Vorbehalte hinsichtlich der Ratifizierung des Vertrags über die Gründung der Europäischen Gemeinschaft für Kohle und Stahl.

On 23 October 1951, the Force Ouvrière National Federal Miners’ Council adopts a resolution opposing the application of the Schuman Plan and calls on French MPs to reject the ratification of the Treaty establishing the European Coal and Steel Community (ECSC).

In 1952, writing in the French magazine Notre Europe, Léon Chevalme, representative of the General Confederation of Labour (CGT), sets out the stance taken by the European trade unions on the Schuman Plan and on the European Coal and Steel Community (ECSC).

On 14 December 1951, the French Communist daily newspaper L’Humanité harshly criticises the propagandists of the Schuman Plan, particularly attacking the editorial line taken by the newspaper Franc-Tireur, and deplores the dangers for French workers posed by a future coal and steel pool.

In December 1951, the French Economic Council rejects, by 73 votes out of 160, the contrary draft opinion delivered by the group of heads of enterprise and declares its support for the ratification of the Schuman Plan.

Am 13. Dezember 1951 stimmt die französische Nationalversammlung trotz des heftigen Widerstandes der gaullistischen und kommunistischen Abgeordneten für die Ratifizierung des Vertrags zur Gründung der Europäischen Gemeinschaft für Kohle und Stahl (EGKS).

In July 1951, the bimonthly bulletin Actualités industrielles lorraines, published by the Centre d’Information des Industries Lorraines, analyses the repercussions of the Treaty establishing the European Coal and Steel Community (ECSC) on France’s steel and coal industries.

From 6 to 13 December 1951, the Members of the French National Assembly debate the ratification of the Treaty establishing the European Coal and Steel Community (ECSC). As the debates take place, the Communist group deplores the dangers of a future coal and steel pool and calls for non-ratification of the ECSC Treaty.