Short Answer
Sometimes the ownership transaction can close before every operational licence is reissued or transferred—but that does not mean the buyer can lawfully operate every regulated activity immediately after closing.
The correct approach is licence by licence.
For each permit, determine whether it transfers, requires a formal transfer application, requires a fresh application, is tied to a particular person or premises, or permits any lawful interim arrangement.
The acquisition closing date and the operational handover date may therefore be different.
Why This Matters
Buyers usually focus on:
“When do we own the business?”
Regulators focus on:
“Who is authorised to conduct the regulated activity?”
Those dates do not always coincide.
A buyer may legally acquire land, equipment, inventory or shares while still waiting for a critical operating licence. Without a transition plan, the buyer can own a business that it cannot lawfully run.
Typical Scenario
A buyer is acquiring a regulated business. The asset transfer is scheduled for a fixed date, but several permits remain in the seller’s name.
Management asks:
“Can we close now and sort out the licences afterwards?”
The answer depends on the particular licences.
Practical Analysis
01Separate ownership rights from operating permissions.
Create two lists: what legally transfers at closing and what regulatory authority the buyer needs to operate.
02Check the transfer route under each regulatory regime.
Thai licensing laws do not use one universal mechanism. Some licences have a formal transfer procedure. Others require a fresh application or are closely tied to the holder, premises or activity.
Factory and hotel regulation, for example, each have their own specific procedures.
03Identify the day-one licences.
Classify permissions into those required before the buyer can operate the core business, those that can be completed shortly after closing and those that are administrative rather than operationally critical.
04Do not assume the buyer can temporarily use the seller’s licence.
A transition-services clause cannot override regulatory law. Whether the seller can remain the licensed operator during a transition depends on the actual legal regime and on who controls operations, receives revenue and employs staff.
05Build the licence transition into the acquisition documents.
Allocate responsibility for applications, supporting documents, authority communications, costs, seller cooperation and the consequences of delay or refusal.
Where a critical licence cannot be ready by closing, the parties should decide whether the correct response is to delay closing, carve out the regulated activity, use a genuinely lawful transitional structure or change the transaction timetable. The answer should come from the regulatory analysis, not from pressure to preserve an already announced handover date.
This is also why licence due diligence should start before the sale agreement is finalised. If the buyer discovers only after signing that a core permit requires a new application with an uncertain timetable, the parties may have created a closing obligation that is commercially difficult or legally impossible to perform as originally planned.
That distinction should be documented.
What We Usually Look At
For each material permit, we check the issuing authority, holder, licensed premises and activity, expiry date, transfer or new-application route, required documents, inspection requirements, filing timetable, seller cooperation and whether approval is needed before closing.
Common Traps
Common mistakes are assuming a licence follows the premises, treating every permit as transferable, allowing the buyer to operate under the seller’s permit without verification and setting the operational handover date before the authority timetable is understood.
Practical Next Step
Prepare a licence transition matrix:
licence → holder → transfer / new application → responsible party → filing → approval before closing? → interim position → fallback
The buyer should know the answer to one question before committing:
“What can we legally operate on the morning after closing?”
Legal Sources
- Factory Act B.E. 2535 (1992), as amended, and Department of Industrial Works procedures where factory permissions are involved.
- Hotel Act B.E. 2547 (2004) and Department of Provincial Administration procedures where hotel licensing is involved.
- Public Health Act B.E. 2535 (1992), including section 38 and applicable local-authority procedures where a food-selling premises is involved.
- Other applicable sector-specific licensing legislation and the issuing authority’s current public transfer, amendment or new-application procedure.
General legal information only. Please seek advice on your specific facts. Laws and regulatory practice may change.