U.S. trade policy affecting ASEAN has changed materially in 2026. The Administration terminated the IEEPA-based additional ad valorem duties in February, including the former reciprocal-tariff measures; Section 232 and Section 301 duties were expressly unaffected. A separate 10% temporary import surcharge imposed under Section 122 took effect on February 24 for 150 days and expired on July 24, 2026, absent congressional extension.
Section 301: new ASEAN country-level duties
USTR’s July 23 final action in its forced-labor import-policy investigations is now the principal new country-level tariff measure affecting ASEAN. For covered merchandise entered on or after July 24, 2026, Cambodia, Indonesia and Malaysia are subject to an additional 10% Section 301 duty. The Philippines, Singapore, Thailand and Vietnam are subject to an additional 12.5% duty. Brunei Darussalam, Lao PDR, Myanmar and Timor-Leste were not among the economies covered by the action.
The action applies broadly to products of the covered economies, subject to exemptions identified by USTR. USTR also directed the establishment, when feasible, of tariff-rate quotas for certain textile and apparel imports from Cambodia, Indonesia and Malaysia based on the use of U.S. inputs.
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