Short Answer
If it is genuinely unclear whether a product falls within a mandatory Thai industrial standard, do not rely only on a supplier’s view or an informal phone call.
The Thai Industrial Standards Institute (TISI) operates an online e-Scope process that can be used to ask whether a particular product falls within the scope of a compulsory standard. A written, product-specific response can be valuable evidence before goods are ordered, imported or produced.
It is important, however, to separate a scope response from the licence or permission that may still be required if the product is found to be regulated.
Why This Matters
A product-standard question can become a launch problem very late in the project.
The business may already have ordered the goods, booked shipping, committed to a customer delivery date or installed equipment. If the product is then found to fall within a compulsory standard, the importer or manufacturer may need a regulatory route that was never built into the timetable.
The real cost can therefore be delay, storage, customs disruption, failed procurement or an inability to launch on time.
Typical Scenario
A foreign investor plans to import an industrial component or finished product into Thailand.
The supplier believes the product is outside the mandatory-standard regime. An officer gives a preliminary verbal view, but the product has technical features that make classification uncertain.
Management asks:
“Is the verbal answer enough for us to proceed?”
Practical Analysis
01Identify the potentially relevant compulsory standard.
TISI publishes the list of products subject to compulsory standards, but a standard title may not resolve a borderline case. Scope can depend on design, electrical specifications, components, intended function or other technical characteristics.
02Build the technical file before asking for a formal view.
A useful scope submission may need photographs, technical specifications, catalogues, ratings, components and intended use. A weak product description can produce an answer that is too general to support the business decision.
03Use verbal guidance for orientation, not as the final project record.
A discussion with the responsible officer can help identify the likely standard and the information needed. But if the classification affects shipment, procurement approval or a customer warranty, a written product-specific record is much easier to rely on later.
04Keep scope determination separate from the licensing route.
If TISI confirms that the product falls within a compulsory standard, the business must then identify the required certification, import permission or other regulatory step.
The practical sequence is:
technical specification → possible standard → e-Scope response → applicable approval route → shipment / production timetable
The decision threshold should also reflect commercial exposure. A low-value shipment may justify a different level of confirmation from a product that determines a factory launch, customer delivery or long-term import programme. The higher the consequence of being wrong, the stronger the case for a documented scope position before the business commits to shipment, installation or a customer warranty.
What We Usually Look At
We normally check the exact model, technical specification, intended use, relevant Thai Industrial Standard, who will be importer or manufacturer, whether similar models differ in a way that affects classification, shipment timing and any customer requirement for compliance evidence.
Common Traps
Typical mistakes are relying on a commercial product name instead of technical characteristics, assuming the customs tariff code alone resolves the TISI question, submitting too little technical material, treating a verbal discussion as final evidence, or assuming a written scope response is itself permission to import.
Practical Next Step
Before shipment, create a short product-scope file containing the specification, possible standard, written TISI scope position and the next approval step.
That turns a vague regulatory question into a documented project decision.
Legal Sources
- Industrial Product Standards Act B.E. 2511 (1968), as amended.
- Thai Industrial Standards Institute (TISI), current list of products subject to compulsory standards.
- TISI e-Scope official service and current guidance for requesting a scope determination.
- TISI official procedures for import or manufacture of products subject to compulsory standards.
General legal information only. Please seek advice on your specific facts. Laws and regulatory practice may change.