Brunei

For US customs, the country of origin is generally where an imported product was wholly obtained or produced, or where it underwent its last substantial transformation. It is not necessarily the country it was shipped from, exported through, or purchased from. For example, goods made in another country and routed through Brunei usually do not become Brunei-origin goods merely because they were re-exported from Brunei.

Origin matters because US tariff measures—such as ordinary duty treatment, additional tariffs, trade remedies, quotas, or preference programs—can depend on the product’s origin as well as its tariff classification. For products associated with Brunei, verify whether Brunei is the true origin under the applicable rules and whether any measure has product-specific conditions, exceptions, exclusions, or documentation requirements. Complex manufacturing involving multiple countries may require a customs broker or trade specialist’s analysis.

What to check

• Identify where the product was wholly obtained or produced, or where its last substantial transformation occurred; do not rely only on the ship-from address.
• Review the product’s manufacturing steps, component origins, and tariff classification to apply the relevant US origin rule.
• Keep records such as supplier origin statements, bills of materials, production documents, and manufacturing affidavits that support the declared origin.
• Check whether processing in Brunei was meaningful enough to change origin; simple repacking, labeling, sorting, or transshipment commonly does not.
• Confirm the origin declaration against current official US tariff-measure and entry requirements, and obtain broker advice for substantial-transformation or multi-country cases.