At a glance: In the span of three months, USTR has opened or advanced three separate Section 301 investigations directly targeting Vietnam – covering intellectual property, forced labor, and structural excess manufacturing capacity. Each carries different tariff exposure and sits at a different stage of the process. Together, they represent the most concentrated application of U.S. trade law pressure on Vietnam in recent history, and the next 60 days will be decisive.
The Bigger Picture
In the span of three months, the U.S. Trade Representative has opened or advanced three separate Section 301 investigations that directly implicate Vietnam — covering intellectual property, forced labor, and structural excess manufacturing capacity. Each investigation is at a different stage, carries different tariff exposure, and targets different sectors. Together, they represent the most concentrated application of U.S. trade law pressure on Vietnam in recent history.
This article maps all three investigations in one place: what each covers, where each stands, and what the combined exposure means for businesses operating Vietnam-based supply chains.
The Three Investigations
The Combined Exposure
The three investigations are legally independent but economically cumulative. A business importing Vietnamese electronics, for example, could face tariffs from all three tracks simultaneously — layered on top of the existing rate.
| Layer | Rate | Status |
|---|---|---|
| Existing trade pact rate | 20% | In effect |
| Forced labor (Track 2) | +12.5% | Proposed — hearing July 7 |
| Structural excess capacity (Track 3) | +TBD | Determination imminent |
| Intellectual property (Track 1) | +TBD | Comment period open |
| Combined maximum exposure | 32.5%+ | Potentially compounding |
Vietnam’s rapid growth as a U.S.-bound manufacturing hub — driven largely by supply chain diversification away from China post-2018 — has drawn sustained scrutiny from U.S. trade authorities who view much of that growth as Chinese manufacturing displaced rather than genuinely Vietnamese. The three investigations collectively reflect that view: IP enforcement concerns have been present for years; forced labor scrutiny extends UFLPA enforcement logic; and the excess capacity investigation explicitly flags Vietnam’s assembly-and-export model. Together, they suggest a systematic reassessment of Vietnam’s position in U.S.-bound supply chains — not a response to isolated policy failures.
What Businesses Should Do Now
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1Map your exposure across all three tracksThe investigations may produce stacking tariff outcomes on the same product categories. Model scenarios where two or more additional tariffs apply simultaneously.
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2Prioritize the July comment deadlinesIP investigation closes July 2; forced labor closes July 6. Companies with material exposure should consider formal submissions to place their interests on the record before USTR makes its determinations.
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3Watch for the excess capacity determinationWith hearings complete and a determination expected imminently, this is the most time-sensitive development. Monitor USTR announcements closely in the coming weeks.
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4Strengthen origin and labor compliance documentationCompliance expectations across all three investigations — on IP, labor standards, and supply chain transparency — are moving in one direction. Treat these as compliance reforms, not documentation exercises.
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5Engage your customs broker and trade counselThe complexity of three concurrent investigations with potentially overlapping tariff structures warrants specialist input. Generic supply chain reviews are unlikely to be sufficient.
Looking Ahead
The pace of USTR action on Vietnam has accelerated significantly in 2026. Three Section 301 tracks are now active simultaneously. Two have imminent comment deadlines. One has a determination pending within weeks. The next 60 days will likely define the tariff environment for Vietnam-sourced imports for years to come.
Voltrans Logistics will continue to publish updates as each investigation progresses. If you have questions about supply chain exposure, compliance documentation, or contingency planning, our advisory team is available to assist.