Tariff Savings Aren't Enough: The Hidden Supply Chain Costs of Foreign Trade Zones

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Tariffs can turn a reliable supplier into the expensive option. A US foreign trade zone (FTZ) may preserve sourcing flexibility, but customs compliance adds costs and risk.

In this episode I speak with Curtis Spencer, CEO of IMS Worldwide. He describes a customer he says preserved around $50 million in export sales through FTZs, not $50 million in avoided duties. We examine how those commercial gains compare with operational obligations.

Listen to judge whether tariff relief improves your sourcing choices enough to justify the investment.

Questions we cover

What changes inside an FTZ warehouse? (11:53)

Curtis explains how weekly customs entries and software linked to warehouse management systems can reduce repetitive filings without stopping shipments, where the operation qualifies.

Why does supplier data matter so much? (18:05)

Invoices, advance shipping notices and bills of lading arriving as separate emailed PDFs may still need manual entry, even when the FTZ system supports electronic integration.

When should a company reject an FTZ? (21:15)

Curtis argues that an illustrative $200,000 annual saving against $100,000 in running costs leaves too little reward for the added customs compliance risk.

 If disruption hit tomorrow, would you know where your supply chain was most exposed? In 15 minutes my free scorecard helps you assess 27 resilience statements, calculate your score, and turn the result into three priorities and a 30 day action plan. You can download the scorecard free at tomraftery.com/scorecard.

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