15 U.S.C. § 6a : US Code - Section 6A: Conduct involving trade or commerce with foreign nations

      Sections 1 to 7 of this title shall not apply to conduct
    involving trade or commerce (other than import trade or import
    commerce) with foreign nations unless - 
        (1) such conduct has a direct, substantial, and reasonably
      foreseeable effect - 
          (A) on trade or commerce which is not trade or commerce with
        foreign nations, or on import trade or import commerce with
        foreign nations; or
          (B) on export trade or export commerce with foreign nations,
        of a person engaged in such trade or commerce in the United
        States; and

        (2) such effect gives rise to a claim under the provisions of
      sections 1 to 7 of this title, other than this section.

    If sections 1 to 7 of this title apply to such conduct only because
    of the operation of paragraph (1)(B), then sections 1 to 7 of this
    title shall apply to such conduct only for injury to export
    business in the United States.