Moves to restrict the name Emmental to Swiss manufacturers through PGI designation are being closely followed by Lactalis.
Its Emmental - which it describes as a French cheese - is a key pillar in its Président brand.
Lactalis UK MD Andy Smith said: "You could argue that it is French because it originated on the border ."
The UK Emmental market is worth some £28m a year
[ACNielsen to March 2006].