Mr. Chair, when we contract, we establish our contract provisions with a prime contractor. Since our relationship is with the prime contractor, we do not have a contractual relationship with a subcontractor. However, we do bind the prime contractor to its subcontractors. We hold the prime contractor accountable. The prime contractor is accountable to us, but we do not hold the subcontractors accountable to us.
My colleague Mr. Sobrino might want to elaborate. Or is there a specific circumstance, Mr. Chair?