Guy Dejouany prevented the nationalization of the Générale des Eaux in 1983. At that time, Jacques Delors was Minister of industry, and decided to buy it back via Saint-Gobain - company actions to achieve the blocking minority and thus influence the future of the group. François Mitterrand, the french President at that time, intervened in favour of the C.G.E. To follow two groups cross-participation thus participating in the creation of the famous hard cores in French Defence organised to withstand hostile Takeovers abroad.