Country of origin vs. shipping country for U.S. imports

USITC distinguishes origin from transit in its trade-statistics explanation. For marking, CBP’s rule begins with where an article is manufactured, produced or grown; additional work in another country can change that origin only if the relevant substantial-transformation rule is met, subject to special regimes such as USMCA. These are different contexts, so document the actual rule at issue.

• A China-made finished item placed in a third-country warehouse remains a China-origin candidate; the warehouse address is not proof of new origin.
• A new label or export invoice from that country records routing or sale, not necessarily manufacturing transformation.
• If genuine manufacturing occurs elsewhere, gather bills of materials and process records and ask which origin test applies to the specific program.

Request the manufacturer, factory location, production steps and component information. Keep the transport documents separately so a broker can distinguish route from production. If a later processing step is claimed to change origin, obtain a product- and measure-specific opinion rather than extending a marking rule automatically to duties, preferences or AD/CVD.

Use the supported origin in a duty estimate, then verify the entry-date measures that apply to that origin and product. If the evidence is incomplete, leave the country determination open rather than presenting a duty comparison as a legal finding.