Foreign entities and employees of foreign entities (including U.S. persons) are treated as a Foreign National no matter where located.
Foreign Entities:
Individuals working on behalf of a foreign entity assume the nationality of that foreign entity regardless of individual citizenship or residence. For example, your former colleague, a U.S. citizen, takes employment with EADS (European Aeronautic Defence and Space Company) in Germany. A transfer of technical data to your colleague working for EADS will be considered an export to Germany.