I've checked the ingredient list against the standard Heinz beans here in Aus and the quantity of salt and sugar is the only difference. Of course that may vary in other places. Manufacturers always adjust products for local tastes.
If you're missing the UK type it's sold overseas as Heinz English Recipe baked beans. I checked the difference in ingredients. The English ones have extra salt and sugar.
I've checked the ingredient list against the standard Heinz beans here in Aus and the quantity of salt and sugar is the only difference. Of course that may vary in other places. Manufacturers always adjust products for local tastes.