A majority of French voters back selling all or some of the state's assets in automakers Renault and Peugeot, airliner Air France and telecoms group Orange, an opinion poll showed on Monday.

France announced last year plans to sell some €10 billion worth of stakes in state-owned companies in order to raise money for a new fund to finance innovation, an election pledge of President Emmanuel Macron.

State stakes in big groups have long had popular backing, and the OpinionWay poll showed two thirds of voters still back it in principle.

But the survey stressed that when it comes to individual companies, a majority back selling stakes in companies that are not viewed as public services.

Renault, at the heart of a power struggle over its ownership, topped the list, with 56 per cent in favour of the state selling at least some of its 15 per cent stake.

The survey showed, however, that a majority oppose the selling of state assets in mail operator La Poste and electricity provider EDF.

Responses were split about state-owned railway operator SNCF, with 50 per cent opposing any asset sale and 47 per cent backing it.