has taken specific corrective actions. (c) Sanction (1) Description of sanction The sanction to be imposed pursuant to subsection (a)(1) is, except as provided that the United States Government shall not procure, or enter into any contract for the procurement of, any goods or services from any person described in subsection (a)(3). (2) Exceptions The President shall not be required to apply or maintain a sanction under this section— (A) in the case of procurement of defense articles or defense services— (i) under existing contracts or subcontracts, including the exercise of options for production quantities to satisfy United States operational military requirements