In return, Liberty has offered specialty modular Avionics and Interior components for Bretonia's own efforts to modernize its fleet, driven by fears of a resurgent Gallia. To source these components, the Liberty Navy has prepared a shortlist of approved defense contractors who are authorized to participate in the project.
Where exactly is this paragraph (or somewhere else I might have missed it) says that these approved defense contractors cannot play the role of fences if they so chose (if they don't want that, they can simply set the buy price at 1$, no)?