Oil, the Import Bill and the Thai Baht: Reading Terms-of-Trade Pressure in Asia

Key takeaways

1. Thailand posted a $5.86 billion trade deficit in September as imports rose a record 50.4%, far above the $1.83 billion deficit forecast in a Reuters poll (Reuters).

2. Brent traded at $115.15 a barrel at 00:00 UTC, close to six-month highs, which keeps the energy bills of net oil importers in focus (Reuters).

3. The baht opened at 33.77 per dollar, little changed, ahead of a Bank of Thailand decision on Wednesday at which economists expect a hold at 1.00% (Krungthai Bank; InfoQuest).

The development

Thailand's commerce ministry reported on Monday that imports rose 50.4% year on year in September, a record and far above the 31.25% rise forecast in a Reuters poll. Exports rose 24.0%, also above forecast, led by electronics linked to artificial-intelligence demand. The trade deficit was $5.86 billion, against a forecast of $1.83 billion (Reuters). Imports reached a record $44.3 billion for the month (The Nation, citing the Trade Policy and Strategy Office).

Oil is the backdrop. Brent was at $115.15 a barrel at 00:00 UTC on Tuesday, down 0.57% on hopes for Middle East diplomacy but close to six-month highs after attacks on Saudi Arabia (Reuters). MUFG Research says higher energy costs and imported electronic components both lifted the import bill, and it calls the baht one of its preferred ways to express the oil shock in Asia.

The baht itself was calm. It opened at 33.77 per dollar against a previous close of 33.80, according to Krungthai Bank, which expects a 33.65–33.85 range over the next 24 hours.

Market transmission

For a net energy importer, a higher oil price means more dollars must be paid for the same volume of fuel. That worsens the terms of trade, widens the trade and current-account balances and raises importers' demand for dollars. The effect on the currency usually builds over weeks rather than hours. The rate gap adds to the pressure: Thailand's policy rate is 1.00%, against a US federal funds range of 3.75%–4.00% (Reuters).

What to monitor next

• The Bank of Thailand decision on Wednesday 28 October (Bank of Thailand schedule; announcement time in UTC not verified). Research teams at Kasikorn, Krungsri and Krungthai all expect a hold at 1.00% (InfoQuest).

• Brent, and Israel's exit polls at 20:00 UTC, which Krungthai named as a factor for the oil risk premium.

• The Indonesian rupiah, which MUFG said reached 18,124 per dollar on Monday, near its June record; regional currency weakness can feed through to the baht.

• Whether exports keep pace: AI-related shipments and the fourth-quarter tourist season are offsets.

Reusable lesson

The oil-currency link runs through the balance of payments, so check the trade data, not only the oil chart. A currency can stay stable for weeks while the import bill builds, particularly when exports are strong too. The correlation tends to weaken when other flows dominate, here AI-related exports and tourism receipts. Treat one month's deficit as a signal to monitor, not a conclusion.

Invalidation and risk

A durable Middle East ceasefire would lower oil and ease the pressure. A hawkish surprise from the Bank of Thailand would narrow the rate gap. Conversely, an oil spike after Israel's election, or a hawkish Federal Reserve, could weaken the baht; Krungthai identified 34.00 per dollar as the next zone it is watching. USDTHB liquidity is thinner than in the major pairs, so moves can be abrupt.

Glossary

Terms of trade: The ratio of export prices to import prices; it worsens for an oil importer when oil prices rise.

Current account: The broadest measure of a country's net flows of goods, services and income with the rest of the world.

Net energy importer: A country that buys more energy from abroad than it sells, so higher prices increase its import bill.

Sources

Reuters (via Bangkok Post) (2026-10-26): Thai September exports up 24% y/y, above forecast

Reuters (via Investing.com) (2026-10-27): Oil eases on Middle East diplomacy hopes, Saudi attacks keep supply worries alive

The Nation Thailand (2026-10-26): Thai trade gap hits US$5.86bn in September as imports surge

Krungthai Global Markets (via Money & Banking) (2026-10-27): The value of the baht opened this morning at 33.77 baht/dollar

MUFG Research (2026-10-27): Asia FX Talk: Oil shock reinforces regional divergence

Bank of Thailand (2026-10-27): MPC Meeting: Schedule 2026

InfoQuest (2026-10-26): CONSENSUS: MPC expected to hold the policy rate at 1%

Reuters (via Investing.com) (2026-10-26): Fed to hit pause on rate hikes, but maybe not for long

Disclaimer

This note is provided by the SummitFx Project for general education and market context only. It is not investment advice, not a solicitation to buy or sell any instrument, and not a personal recommendation. Foreign exchange and related markets are leveraged and can result in the loss of some or all of your capital. Figures are believed accurate at the time of research and may already be stale. Always verify live prices, official releases, and your own risk limits before acting. Past market behaviour does not determine future results.