Bread mixes

In France, a Pain de Compagne bread mix comes in a 1 kg bag (2.2 lbs), and says it will make 2 breads of 750 kg each (because of adding water to the mix). Per 100 gram slice, it's 9.8 grams of protein and 320 calories. 70% of the ingredients are wheat flour.Bonpain is the maker. No website that I can find.
Will add a US maker.