The negative pledge clause is a standard covenant in international loan agreements where the borrower agrees not to grant security to other lenders that would have priority over the initial lender. There are two main types: a basic negative pledge and an affirmative/quasi-security negative pledge. While the basic pledge is generally ineffective if breached, the affirmative pledge aims to automatically grant equal security to the initial lender if a prohibited security is given to another. However, the affirmative pledge faces issues regarding consideration, registration requirements, and priority that challenge its enforceability. Nonetheless, the negative pledge still provides some protection for lenders through triggering other clauses if breached.