Strait of Hormuz & Downstream Impacts — Week 4 Update

01 — Situation Update

The disruption has continued to deepen and grow more complex

The Strait has become a toll booth — selective flow only for favored nations

Transit traffic down ~94% from pre-war levels; only 26 vetted transits logged March 13–25.
At least two vessels have paid ~$2M per transit in yuan; Iran’s parliament is moving to legislate permanent tolls.
Five nations permitted as of March 26: China, Russia, India, Iraq, Pakistan.
Implication: Iran is institutionalizing control over the world’s most critical chokepoint — this is a structural shift disadvantaging Western nations.

The conflict has expanded beyond ships and into Gulf logistics infrastructure

17% of Qatar’s LNG export capacity offline, force majeure declared, $20B annual revenue loss, 3–5 year repair timeline.
Drone strikes have also hit Omani bypass ports, and expanded war risk zones are reducing their viability.
Implication: Iran is targeting broader logistics infrastructure, not just the strait — invalidating assumptions that bypass routes would remain viable.

Insurers have re-priced the entire Gulf, with rates skyrocketing

War risk premiums for Strait of Hormuz transits have surged to ~5% of vessel value (~$5M on a $100M tanker) — approximately 5x above early-conflict and peacetime levels.
Every major ocean carrier has already implemented named conflict surcharges, $1,500–$2,000/TEU.
Implication: Expect conflict surcharges on supplier invoices soon — a new pricing exposure for procurement teams.

On diplomatic volatility: Brent fell 9%+ on ceasefire reports, then recovered after Iran declared it would fight "until complete victory." Trump has extended his strike deadline twice (now April 6). Iran's conditions include sovereign control of the strait, meaning even a ceasefire may not restore open commercial access. Clients on spot or index pricing are absorbing unpredictable two-sided volatility. Waiting for diplomatic clarity is itself a position — hedging decisions cannot be deferred indefinitely.

02 — Impact Assessment

The closure has sent concurrent shock waves through global supply chains

Energy and fuel costs

Early March – Ongoing

Oil is a global commodity—domestic production does not insulate US businesses from the price spike.
Manufacturers and logistics-heavy clients face higher freight surcharges, utility costs, and petroleum-derived feedstock prices now. UPS and FedEx have already raised fuel surcharge tables.
Implication: The $100/barrel threshold has been crossed and held. IEA reserve releases are providing some buffer, but they were not designed for the open-ended conflict now unfolding.

Petrochemicals and plastics

Early March – Full impact mid-March onward

~85% of Middle Eastern polyethylene transits the Strait of Hormuz.
US shale feedstocks cushion domestic producers but global price signals flow through regardless.
Implication: Resin costs for packaging, auto parts, and industrial components are rising (resin is 50–60% of a plastic bottle's cost; packaging is 5–10% of total cost for most shelf products). The physical shortage impact—for buyers with depleted inventory buffers or Middle Eastern supply contracts—arrives in the next 2–4 weeks.

Fertilizer and agricultural inputs

Early March – Food cost inflation H2 2026

~1/3 of global fertilizer trade transits the Strait. Nearly one million metric tonnes of fertilizer cargo are stranded in the Gulf.
Urea prices at US distribution hubs have jumped 40+%.
New emerging shock: Tightening sulfur supply (Gulf is 44% of global supply) is cascading into phosphate fertilizer supply chains (MAP and DAP).
Implication: No near-term domestic substitute for nitrogen fertilizer as farmers enter peak planting window. Most agriculture uses both nitrogen and phosphate fertilizer. Food ingredient cost inflation is now a H2 2026 earnings issue.

Liquefied Natural Gas (LNG) is amplifying all three shock waves simultaneously. Qatar (the 2nd largest LNG exporter) has effectively been taken offline. This is making petrochemical feedstocks scarcer, fertilizer production more expensive, and industrial energy costs structurally higher.

03 — Sector Exposure

All sectors will be impacted in some way; when and by how much depends on how long the conflict continues

Sector	Timeline	Exposure	Key Impact
Energy & fuel	Early March – ongoing	High	Revenue boost for producers Cost pressure/volatility for everyone else via trucking, utilities, logistics
Petrochemicals & plastics	Early March – ongoing	High	Resin prices rising; supply availability at risk US has some domestic buffer but not full protection
Fertilizer & agriculture	Early March – ongoing	High	Urea prices surged from $475 to $680/MT Corn and soy planting window adds urgency; feeds into grain prices within one crop cycle
CPG	Mid-March – ongoing	Very High	Stacked input shocks: resin, packaging, fuel, energy, agricultural inputs all rising simultaneously
Manufacturers (auto, industrial)	Mid-March – ongoing	High	Aluminum costs up; conflict surcharges on invoices Just-in-time supply chains have limited buffer against port congestion
Retail & apparel	Late March – ongoing	Medium	Shipping delays and port congestion Cape of Good Hope rerouting adds 2–3 weeks to transit times and creates container availability issues

04 — Recommended Actions

Clients should take near-term action before the disruption deepens

Assess Your Risk Exposure

Map which input costs have Gulf-region exposure and pressure-test your Gulf bypass assumptions.
A rapid cost model stress-test against simultaneous 10-20% increases in resin, freight, and agricultural inputs will tell you quickly whether you're looking at margin compression or something more serious.

Hedge Open Positions

Clients with unhedged exposure to oil, resin, or grain-based inputs should be reviewing their options now.
Lock in forward pricing on oil, resin, or grain inputs before the window narrows.

Build Tactical Inventory

Consider short-term safety stock on highest-risk inputs ahead of potential port congestion.
There's a real cost to holding more inventory, but the cost of a production stoppage is usually higher.

Diversify Suppliers

Medium-term action is to reduce single-region supplier concentration.
Clients who source resins, aluminum, or fertilizer predominantly from Gulf-region suppliers should be identifying alternatives — US domestic, Southeast Asian, or Latin American sources.

Margin Management

Model margin impact of simultaneous input increases before deciding on pass-through vs. absorption.
The question isn't "can we raise prices" but "which SKUs, which channels, and with what timing" — because a blunt across-the-board increase risks volume loss at exactly the wrong moment.

Get a rapid risk assessment from a GEP supply chain expert

Our consulting teams are actively helping procurement and supply chain leaders navigate the Hormuz disruption in real time. Set up a 30-minute discussion to assess your specific exposure and build an action plan.

Sector-specific risk exposure mapping

Input cost stress-testing and scenario modeling

Supplier diversification and hedging strategies

Margin management and pricing playbooks

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