Integral part. An integral part of a foreign sovereign is any person, body of persons, organization, agency, bureau, fund, instrumentality, or other body, however designated, that constitutes a governing authority of a foreign country. The net earnings of the governing authority must be credited to its own account or to other accounts of the foreign sovereign, with no portion inuring to the benefit of any private person. An integral part does not include any individual who is a sovereign, official, or administrator acting in a private or personal capacity. Consideration of all the facts and circumstances will determine whether an individual is acting in a private or personal capacity.