( in case of luxembourg counterparties  in addition to clause 9 of this agreement the parties agree that for purpose of article 1 of the protocol annexed to the convention on jurisdiction and the enforcement of judgements in civil and commercial matters  signed in brussels on 27 september 1998 and without prejudice to the foregoing execution of this agreement by the parties hereto  ( luxembourg counterparty ) expressly and specifically confirms its agreement to the provisions of clause 9 of this agreement  stipulating that the district court ( landgericht ) of frankfurt am main shall have jurisdiction to hear and determine any suit  action or proceeding  and to settle any disputes  which may arise out of or in connection with this agreement and  for such purposes  irrevocably submits to the jurisdiction of such courts 