Hook

In foreign trade, 'hook' (or 'linkage') is not a standard international trade term (such as FOB or CIF), but rather a practical operational concept. It usually refers to linking a transaction, payment, or responsibility to another condition or event. Common scenarios include: 1) Payment linkage, e.g., 'payment linked to quality inspection report', meaning the buyer's payment is conditional upon passing third-party inspection; 2) Order linkage, e.g., 'new order linked to outstanding payment on old order', requiring settlement of old debts before executing a new order; 3) Commission or discount linkage, e.g., 'commission linked to annual purchase volume', where commission is paid only upon reaching the agreed quantity. Note: Linkage clauses must clearly specify the linked conditions, trigger mechanisms, timing, and consequences of breach in the contract to avoid ambiguity leading to disputes. Unlike 'back-to-back L/C' or 'advance payment', linkage emphasizes conditional association rather than an independent payment instrument, and its legal effect depends on the specific contract terms. Foreign trade practitioners should be aware of the potential capital occupation, credit risk, and operational complexity brought by linkage clauses, and it is recommended to use written supplementary agreements and keep communication records.