What moved in trade policy, translated from legal authority into operating decision.

On June 2, USTR released findings on its Section 301 forced-labor investigations, determining that 60 economies failed to impose and enforce prohibitions on forced-labor goods. The proposal sets two rates: 10% and 12.5%. Six partners with existing commitments (Canada, Ecuador, the EU, Indonesia, Mexico, Pakistan) and a set of ART and partial-commitment economies draw 10%; the remaining 46 face 12.5%, including China, India, Japan, South Korea, Thailand, and Vietnam.

No implementation date is set, but duties are expected to take effect by July 24, when the Section 122 surcharge expires. This is the durable replacement for the litigated IEEPA regime: Section 301 holds for four years before mandated review and is materially harder to challenge in court. Current indications are that these duties may stack with other Section 301 measures, while Section 232 duties remain non-cumulative.

What to do now. The hearing-and-comment window is the lever. Requests to appear at the July 7 hearing are due June 22; written comments are due July 6. The Section 122 product exclusion list is expected to carry over, so the comment record will shape any exclusion framework applied here. If you have concentrated exposure in a targeted economy, this is a narrow, real opening to argue for an exclusion or preferential treatment before rates are fixed.

Model the 12.5% case across your sourcing footprint now, not after implementation. A separate Section 301 action on excess capacity covering 16 economies is expected in the coming weeks. The diversification away from China sits inside the same posture.

On February 20, the Supreme Court held in Learning Resources v. Trump that IEEPA does not authorize tariffs, invalidating roughly $166 billion in duties collected across 53 million entries. The same day, the administration replaced the lost authority with a 10% Section 122 surcharge, in force February 24 through July 24, 2026. The mechanical effect on go-forward cost is largely unchanged. The strategic effect is a refund question: importers who preserve their claim on IEEPA-paid entries can recover, and those who let the procedural windows lapse cannot, regardless of how the pending appeal resolves.

The Federal Circuit's posture on whether refunds extend beyond named plaintiffs is the determinant variable. A universal order would change the recovery math for every importer that paid IEEPA duties; a plaintiff-only outcome would reward those who filed.

What to do now. Three things. First, file CAPE Phase 1 claims on unliquidated entries and those within 80 days of liquidation. Second, protest liquidated entries within the 180-day window before it closes. Third, separate IEEPA-authority duties from Section 232, 301, 122, and AD/CVD duties, which are not affected by the ruling and are not recoverable through this mechanism.

The cost is procedural. The downside of not filing is a closed door if the Federal Circuit limits relief to those who preserved. The upside scales with how aggressively you preserve.

USTR's Section 301 hearings on structural overcapacity and forced labor enforcement now cover sixteen economies. Vietnam, India, Korea, and Mexico are the consequential additions. Sourcing strategies built on diversifying away from China are now exposed to the same investigative posture they were designed to escape.

Industry submissions from electronics, apparel, automotive, and consumer goods sectors filed coordinated comments through the comment period. The comment record will inform tariff rate determinations expected in late June. Rate trajectories under modeling at multiple levels above current Section 122. Companies that have not modeled "what if Vietnam tariffs go to 10–15%" are exposed to the scenario they thought they had hedged.

What this changes. The diversification thesis becomes a duty-stacking thesis. If Vietnam tariffs land at 10–15%, the landed cost spread between China and Vietnam compresses materially. Substantial transformation thresholds become a live operating decision, not a customs technicality. The companies that did the hard work on documentation and origin engineering keep their advantage. The companies that did not now have a problem.

A scenario model with three tariff rate sensitivities (5%, 10%, 15%) on Vietnam and Mexico is a one-week analysis. It belongs in the next pricing cycle.

CBP's enforcement footprint under the Uyghur Forced Labor Prevention Act now covers detention patterns across sixty economies, expanded from the previous narrower list. The detention pattern over the past 90 days indicates enforcement actions touching electronics, apparel, automotive components, agricultural products, and seafood. Detentions are running ahead of formal additions to the entity list.

The shift matters because UFLPA detentions are working capital events, not duty cost events. A detained shipment is held until the importer documents a clean supply chain. The cost is inventory tied up, customer commitments missed, and the legal cost of building documentation under enforcement pressure.

The operating exposure. If your supply chain runs through any of the touched sectors, a quarterly review of detention patterns is now table stakes. The companies absorbing this best have built a documentation discipline that runs ahead of the enforcement calendar — supplier audits, traceability protocols, and contractual indemnification with first-tier suppliers.

The companies absorbing it worst learn about the detention through a customer-facing missed delivery.