International Supply Chain Update: Tariff Hearings, Freight Market Data, and Middle East Disruption — April 2026
International supply chains are navigating simultaneous pressure from two directions: a tariff policy transition that will reshape duty exposure for importers across dozens of countries, and the ongoing ripple effects of Middle East conflict that continue to work through upstream supply chains. The March freight price data, released before the full impact of the Hormuz closure was felt, already understates current market conditions in several key indices. The environment is moving faster than the official data.
International Freight and Warehousing: March 2026 Price Index Data
The following data reflects Producer Price Index readings through March 2026. Importantly, much of this data predates the escalation of the Strait of Hormuz disruption. Where private market intelligence diverges from official PPI data, that divergence is noted.
| Index | M/M Change | Y/Y Change | Key Observation |
|---|---|---|---|
| Air Freight | +0.7% M/M | +2.6% Y/Y | March data predates Hormuz conflict impact; expect significant upward revision in next release |
| Ocean Freight | -0.2% M/M | -1.6% Y/Y | PPI lags private market data; private sources show rates surging across most lanes |
| Warehousing | +6.2% M/M | +7.7% Y/Y | Sharpest monthly gain in the dataset; cold chain construction growing 20-25% CAGR through 2030 |
Air Freight
The air freight price index rose 0.7% month-over-month in March and 2.6% year-over-year. These numbers are worth treating as a baseline rather than a current read. The March data was collected before the naval blockade of the Strait of Hormuz was formally declared and before Gulf carrier airspace restrictions went into effect. Air freight demand — which typically surges when ocean alternatives are disrupted or delayed — has increased significantly since mid-April, and the next PPI release will reflect that. For shippers currently moving temperature-sensitive or time-critical cargo by air, the rate environment is materially higher than the March index suggests.
Ocean Freight
The official ocean freight PPI showed a 1.6% year-over-year decline and a marginal 0.2% month-over-month decrease in March — numbers that appear disconnected from current market reality. Private freight market sources indicate rates are surging across most major trade lanes as carriers reroute around the Hormuz closure, Cape of Good Hope diversions add 10–14 days to voyages, and vessel capacity is effectively reduced across affected corridors. The PPI survey methodology introduces a lag that can be significant during periods of rapid market movement. Current ocean rates should be confirmed against live market data rather than the March index.
Warehousing
Warehousing prices posted their sharpest monthly gain in recent data, rising 6.2% month-over-month and 7.7% year-over-year. The structural driver behind warehouse price inflation is well-established: demand for distribution and fulfillment space continues to outpace available supply in most major U.S. logistics markets. Cold chain warehousing in particular is experiencing significant demand pressure, with new construction projected to grow at a 20–25% compound annual growth rate through 2030. That growth is being partially constrained by electricity supply shortages that are delaying project starts in several key markets.
Middle East Disruption: Upstream Supply Chain Effects Still Building
The most immediate effects of the Hormuz closure — oil price spikes, freight rate increases, carrier suspensions — have been widely reported. Less visible, and potentially more consequential over a longer horizon, are the effects working through Tier 2 and Tier 3 suppliers that feed into higher-level advanced manufacturing.
Energy rationing, reduced production schedules, and operational disruptions at upstream suppliers in affected regions do not show up immediately in finished goods supply chains. The lag between a supplier reducing weekly output and that reduction reaching an OEM or end manufacturer is typically four to eight weeks depending on inventory buffers and contract structures. Supply chains that have not yet felt meaningful disruption from the current conflict may begin to do so in late April and into May.
The supply chain effects of the Hormuz closure are not linear and they are not finished. Importers whose direct suppliers appear unaffected should examine their Tier 2 and Tier 3 exposure before assuming continuity.
Reports from affected regions indicate that some countries are implementing formal energy rationing measures, reducing weekly manufacturing output, and in some cases mandating work-from-home policies to reduce commercial energy consumption. Each of these measures reduces industrial output in ways that will eventually surface as supply constraints for downstream buyers.
With the Strait of Hormuz closed at the time of this writing, pressure on upstream supply chains continues to build. The timeline for resolution — and for the supply chain effects to begin unwinding — remains uncertain.
May 5–8 Hearings: Section 301 Tariffs and the July 24 Transition
Public hearings scheduled for May 5–8 on possible Section 301 tariffs are among the most consequential near-term events in U.S. trade policy. The current Section 122 universal tariff — a 10% surcharge on approximately $1.2 trillion in imports — expires on July 24, 2026. The working assumption in the trade community is that country-specific Section 301 tariffs will replace it, but the structure, rate levels, and scope of those tariffs remain unresolved.
| Measure | Scope | Timeline | Status/Uncertainty |
|---|---|---|---|
| Current Section 122 tariffs | 10% universal surcharge on ~$1.2T in imports | July 24, 2026 | Expected to be replaced by country-specific Section 301s |
| Section 301 — Overcapacity | 16 countries under investigation | TBD post-hearings | Targets market manipulation through excess industrial output |
| Section 301 — Labor Enforcement | 60 countries under investigation | TBD post-hearings | Separate track; stacking with overcapacity findings unresolved |
| Potential stacked rate | Unknown — some sources cite IEEPA-level rates (>10%) | TBD | Whether both violations compound on a single country remains open |
Two Section 301 investigations are currently underway. The first targets 16 countries accused of industrial overcapacity — producing and exporting goods at volumes that distort global market pricing. The second covers 60 countries under investigation for labor enforcement failures. The hearings this week are expected to produce testimony that will inform both the rate-setting and scope decisions before July.
Two critical questions remain open heading into the hearings. First, whether a country found guilty under both investigations will face stacked tariff rates — meaning cumulative exposure from both the overcapacity and labor enforcement tracks. Second, what the actual tariff percentages will be. Some sources have indicated the rates could be set at IEEPA-equivalent levels, which would place them above the current 10% Section 122 baseline.
For importers sourcing from countries under either investigation, the July 24 transition is not a background policy development. It is a potential step-change in landed cost that warrants scenario modeling before the rates are announced.
Planning in an Uncertain Environment
The convergence of freight market tightening, Middle East supply chain disruption, and a significant tariff policy transition creates a planning environment with more moving parts than most import programs are designed to accommodate. The importers best positioned to manage it are those who have already mapped their tariff exposure by country and HTS code, identified their upstream supply chain dependencies, and built contingency into their freight planning.
Euro-American Worldwide Logistics monitors international freight markets, trade policy developments, and supply chain conditions as part of the ongoing intelligence we provide to our clients. For questions about how current conditions may affect your import program, contact our team today.
