According to a report by VIS Rating on March 9, the US and Israel’s attacks on Iran starting from February 28 and Iran’s subsequent retaliation have lifted global oil and gas prices, heightened the risk of disruption in the Strait of Hormuz and increased investor risk aversion.

Amid assumed prolonged tension, credit impacts for Vietnam are transmitted mainly through higher energy and logistics costs, rising inflation and FX pressures, and potentially tighter financing conditions, rather than direct trade route disruption. These forces are credit negative for downstream oil and gas companies, fuel- and energy-intensive businesses, export-oriented firms, and highly leveraged sectors, with outcomes hinging on the duration of global energy supply disruption.

Vietnam’s reliance on imported fuel exposes manufacturers to potential supply disruption and higher oil and gas prices. Annual imports of around $20 billion in crude oil, gasoline, and related products, combined with heavy reliance on Middle East suppliers for crude oil (80 per cent) and liquefied gas (15 per cent), make supply vulnerable and cost structures sensitive to price shocks.

Prolonged armed conflict in the region would pose significant supply shortage risks for domestic refineries, as Nghi Son depends largely on imported crude while Dung Quat sources 30–35 per cent of feedstock from abroad, forcing both plants to seek alternative supplies to maintain operations.

Elevated fuel costs are likely to feed through transportation, industrial activity, and power generation, adding to cost-push inflation and pressuring margins in fuel- and energy-intensive sectors with limited pricing power.

Vietnam faces limited direct trade route disruption, as key export corridors to the US and EU bypass the conflict zone and regional supply routes remain intact. However, higher bunker fuel prices, insurance costs, and vessel delays have pushed up global shipping costs.

Credit exposure is concentrated among export-oriented manufacturers with low unit values, including textiles and garments, seafood, and furniture, where logistics costs account for a meaningful share of shipment value. Marine freight represents an estimated10 per cent of export value in textiles and up to 20–30 per cent for furniture shipments. Higher freight costs are likely to be passed through to end market prices, weighing on demand, order visibility, and near-term revenue prospects for Vietnamese exporters.

Higher global energy prices and shipping costs raise US inflation risks and may delay the Federal Reserve’s easing cycle, supporting a stronger USD. This places persistent depreciation pressure on the VND, increasing FX risk for Vietnamese corporates with USD denominated liabilities.

Exposure is highest among power and water utilities and airlines, which combine USD debt with USD-linked operating costs such as fuel, aircraft leases, and maintenance. Sustained FX volatility would weaken debt service capacity and credit profiles where hedging is limited.

Elevated FX and inflation risks could prompt tighter domestic monetary conditions, including higher interest rates and stricter liquidity management. This would raise funding costs and refinancing risk, particularly for highly leveraged real estate and infrastructure issuers with weak interest coverage ratios and elevated near term maturities.

VIS Rating noted that a prolonged disruption to global energy supply would weaken Vietnam’s macroeconomic outlook and complicate delivery of its 2026 growth target, as higher energy costs, softer external demand, and tighter financial conditions reinforce one another. Vietnam’s position as a stable geopolitical manufacturing hub could partially offset these pressures by supporting incremental foreign direct investment inflows and easing FX stress over the medium term.

Overall, the shock reinforces a negative credit bias for downstream oil and gas companies, fuel- and energy-intensive businesses, export-oriented firms, and leveraged sectors. The duration and severity of energy market disruption are the key downside sensitivities for credit conditions.