I've no access to the game at the moment so can't double check this but ...
I think the key issue is the lack of a collection point. In the continental US you need to build a number of these to make areas productive. Some are obvious - such as in California others less so. So I'd suggest set one up near Richmond (try to make sure its in the same trading area) and you should be good to extract all the local production
AJE The Hero, The Traitor and The Barbarian
PoN Manufacturing Italy; A clear bright sun
RoP The Mightiest Empires Fall
WIA Burning down the Houses; Wars in America; The Tea Wars