How the Strait of Hormuz Crisis Is Hitting Southeast Asia’s Economy

Rising Energy Costs and Regional Inflation

Higher energy prices spread through Southeast Asian economies quickly. Fuel costs feed into electricity generation, transport, logistics, fertilizers, and food distribution. As those input costs rise, businesses either pass them on to consumers or absorb shrinking margins.

Economists describe the situation as a supply‑driven inflation shock: energy scarcity pushes up prices even as economic activity slows. Global analysts warn that sustained oil price spikes can trigger inflation, currency volatility, and broader recession risks.

For many Southeast Asian governments, this also creates fiscal pressure because fuel subsidies—used widely in the region—become more expensive to maintain.

Businesses Face Higher Logistics and Operating Costs

Companies across Southeast Asia are dealing with rising costs in multiple parts of their supply chains.

Shipping disruptions through the Persian Gulf have raised maritime transport costs, slowed cargo movements, and increased insurance premiums for vessels operating in the region. Airlines are also affected as jet fuel prices rise, lifting operating costs and potentially airfares.

The impact is especially strong for industries with energy‑intensive operations or thin margins, including:

• Airlines and aviation services
• Logistics and shipping companies
• Manufacturing exporters
• Petrochemicals and energy‑intensive industries

These sectors are exposed both to higher input costs and to weakening global demand if the energy shock slows economic activity.

Tourism and Consumer Demand Under Pressure

Tourism‑dependent economies such as Thailand face a double hit.

First, higher jet fuel costs can increase ticket prices and airline operating expenses, discouraging long‑haul travel. Second, geopolitical uncertainty tends to dampen travel sentiment globally. Combined, those effects can weaken visitor numbers and tourism spending.

At the same time, households are dealing with rising living costs—particularly fuel and food—leaving less disposable income for discretionary spending such as retail purchases, dining, and domestic travel.

In Thailand, analysts already warned that rising costs, weak tourism momentum, and high household debt could weigh on economic conditions and financial institutions in 2026.

Why Thailand’s Banks Are Seeing Only Tentative Loan Growth

Thailand’s banking system remains financially stable, with strong capital and liquidity buffers. But lending growth has been subdued.

Recent data shows only marginal loan expansion—around 0.2% year‑on‑year in early 2026—and that growth has been driven mainly by large corporate borrowing.

The reason lies in the uneven economic environment:

• Large corporations are borrowing more to manage working capital, hedge against volatile energy prices, or refinance debt while markets remain uncertain.
• Households and SMEs, by contrast, face tighter credit conditions and high debt burdens, limiting their appetite and ability to borrow.

The result is a narrow, defensive form of credit growth rather than a broad expansion tied to strong economic demand.

What This Means for Southeast Asia’s 2026 Outlook

The region’s growth outlook now depends heavily on how long the energy disruption lasts.

If the conflict continues and oil prices remain elevated, several macroeconomic pressures could intensify:

• Higher inflation driven by energy and food costs
• Slower consumer spending
• Increased fiscal strain from subsidies
• More cautious bank lending

Thailand illustrates the fragile balance. The World Bank projects the country’s economy to grow only about 1.6% in 2026, reflecting already weak domestic demand and tight credit conditions even before accounting for a prolonged energy shock.

Across Southeast Asia, the broader pattern is similar: energy importers face rising costs and slower demand, while even commodity exporters are exposed to trade disruptions and weaker global growth.

The Key Variable: Duration of the Conflict

Ultimately, the scale of the economic impact depends on whether disruptions to the Strait of Hormuz are temporary or prolonged. Short‑lived supply interruptions could create only a brief inflation spike. But a longer disruption would reinforce the combination of higher prices and slower growth that economists often describe as stagflation.

For Southeast Asia—where energy imports, trade flows, and tourism are deeply interconnected—the stability of this single maritime chokepoint remains a critical determinant of the region’s economic trajectory in 2026.