The carmaker is due to announce additional production of its three-cylinder gasoline engines, pitting the factory in eastern France against another Peugeot plant in Vigo, Spain.
The Paris-based company declined to comment on the presidential visit or on French media reports that the Tr?mery plant had been selected.
If confirmed, the domestic investment will be seized upon as a vindication of government financial support for Peugeot. The French state acquired 14 percent of the carmaker in a 3 billion euro ($3.3 billion) bailout last year.