Chin Yao Advisory
Crisis & Case Analysis

Running a Foreign Business Through a Thai Flood: A Dry Factory Is Not the Same as a Working Company

A flood does not have to enter a factory to hurt it.

The building is dry and the machines run. But staff cannot leave home, the shuttle buses cannot get through, materials do not arrive and finished goods cannot leave. Head office may be told the building is safe and normal. The local team is looking at the problem of a production line it cannot fill tomorrow.

That is what the heavy rain in Bangkok in late September 2026 looked like. Thailand's Government Public Relations Department reported on 26 September that nearly 300 mm of rain fell in the 48 hours from 24 September, affecting homes and roads around the Lat Phrao, Prawet and Saen Saep canals.

I have worked in Thailand for many years and have been through many floods. A mild one means a day or two of difficult commuting. In a serious one, staff may simply not come to work. For a foreign company, flood-proofing the building is only one part of the job. Four things need to be looked at together.

First: a normal industrial estate does not mean a normal company

Floods in Greater Bangkok hit everyday life first: homes, side streets, commuting routes. Industrial estates have their own embankments and pumps, and in my experience they usually hold. This time was mostly the same. According to a 26 September report, IEAT assessed water conditions in and around every estate under its oversight as normal on 24 September, and three estates in Ayutthaya were still at the normal alert level on 25 September.

But usually is not always. On 30 September IEAT reported that Amata City Industrial Estate in Chonburi had been flooded since 25 September by continuous rain and water flowing in from outside. Phases 6 to 9 were hit hardest, water peaked at about 70 cm, and about 7 million square metres were under water.

So "the estate is normal" is a statement limited to one place at one time. It says nothing about other estates, and nothing about your staff, your suppliers or your transport routes. Your people live outside the estate. Your trucks use the roads outside it.

Second: being a foreign investor earns no special treatment

Thailand is a developing country with long-running high household debt. Bank of Thailand data put household debt at 86.7% of GDP in the fourth quarter of 2025. My view is that when a disaster hits, public resources go to local residents first, and there may not be enough even for them. A foreign company should not expect extra help, or special attention from the government, because it is an investor.

In practice the expectation often runs the other way. Staff and the surrounding community tend to assume a foreign company has more resources and expect it, even more, to step in and do more. That expectation is not reasonable, but it is real. Decide in advance what the company can do and how far it will go.

Follow government and estate announcements closely. But always remember to plan your people and your operations on the assumption that you are on your own.

Third: cash, insurance and materials need a higher standard than at home

Smaller companies often budget for Thailand the way they would at home: rent, wages, equipment, set-up costs. That budget usually only covers a normal year. Abroad, language, transport, supplier coordination and head-office approval all move more slowly, so the same incident costs more to handle.

The 2011 floods are the clearest example. The World Bank put total damage and losses at about THB 1.43 trillion. Manufacturing took roughly 70% of it, and about 90% was borne by the private sector.

Three things should be in place beforehand:

  • Emergency reserve. In a disaster the immediate bills are temporary transport, accommodation, meals, pumping, equipment checks and alternative freight. What matters is whether the local team can spend the money directly, who approves it and up to what amount. If every payment waits for layers of sign-off overseas, the site will know what to do and still be too late.
  • Property insurance. What is covered, what is not, whether flood is excluded or capped, and what documents a claim needs should be checked line by line against the policy with the insurer. A claim that has not been confirmed is not cash in hand.
  • Employee medical and accident cover. What the company can actually offer when staff are injured or fall ill during a disaster.

Stock levels should follow how long it takes to recover a supply, not a blanket rule to hold more. Materials with a single source, substitutes that need requalification, or one usable route are the ones to hold more of. Also check where the stock sits, and whether it would be under the same water as the equipment.

Fourth: five questions the local team must answer the next morning

In a major incident the local operating team needs to know exactly what the company has: people, equipment, warehouse stock, transport arrangements and the condition of the building. The morning after a flood, it should be able to answer:

  1. How many line workers cannot reach the factory today?
  2. How much output is lost, and which orders need to change?
  3. What condition are the building and equipment in, and is anyone on site able to deal with it now?
  4. How many employees need support from the company?
  5. Can the company provide that support, and how quickly?

Absence is not always about flooded roads. One person's vehicle has broken down. Another has to look after family and cannot leave home. Record all of it as "absent" and management cannot respond properly. Headcount is not capacity either. Even with 70% of staff present, a line may still not run if the key line leaders or specialist equipment maintenance staff are missing.

Many factories now employ workers from Myanmar and Laos, which concentrates the risk. Is the dormitory safe? Can the shuttle run? Will food supply hold? How are people accounted for? Can they understand the notices? The company usually arranges all of this itself, so when it fails, a whole group is off work at once.

The clearer the report from site, the sooner head office can adjust what it has promised customers. If the only message is "still checking", a delivery problem quickly becomes a trust problem.

In short

When assessing flood risk in Thailand, work through it in this order:

A flood-proof building is one piece. Where staff live, which roads they use, which materials cannot be replaced, and how much cash and authority the site holds are scattered details in a normal week. In an emergency they all matter at once. If you have not yet entered Thailand, build interruption into the investment budget. If you are already operating, keep this information current. Control of middle managers and a system for real-time reporting matter most. And for a new company that still depends on interpreters to get work done, the problem is far bigger.

Sources

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Information checked on 6 October 2026. This article is a general explanation. Flood conditions and government measures continue to change. Insurance cover and claim conditions depend on the actual policy and should be confirmed with the insurer or a qualified professional.

Questions about your own case? Connect with the author on LinkedIn.

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