This excerpt taken from the PBR 6-K filed May 2, 2005.
5. Ownership of Other Petrochemical Companies
The Second Amendment amends and restates all of the terms and conditions of the First Amendment, including the elimination of the restriction on Petroquisa from owning interests in other petrochemical companies or projects following its exercise of the Option. The terms of the Memorandum, however, remain in full force and effect.