Thailand TISI Mandatory Certification: 2025 Comprehensive Guide to Requirements, Costs & Process

2025-11-10

1️⃣ Overview — What Is Thailand TISI Certification?

The Thailand Industrial Standards Institute (TISI) certification is a mandatory product compliance system governed by the Thai government.
It ensures that products meet the quality, safety, and environmental standards required for legal sale in the Thai market — making it a crucial market access requirement for all imported and domestically manufactured goods.



2️⃣ Key Aspects of TISI Certification

AspectKey Points
Regulatory BodyThailand Industrial Standards Institute (TISI)
Certification NatureCombines mandatory and voluntary systems; products under the controlled list must obtain certification
Core RequirementsProduct Testing + Factory Quality Control Assessment + Compliance with Thai Industrial Standards (TIS)
Certificate Validity3 years (for Mark Certification)


3️⃣ Products Under TISI Mandatory Certification & Latest Standards

 (1) Main Product Categories

TISI’s mandatory certification scope covers a wide range of consumer and industrial products:

  • Electronics & Appliances: Air conditioners, refrigerators, washing machines, fans, rice cookers.

  • Electrical Components: Lighting devices, wires & cables, plugs, sockets.

  • Construction Materials: Cement, steel, glass, PVC pipes.

  • Automotive Parts: Tires, safety glass, and related components.

  • Other Products: Toys, food contact materials, PPE, and more.


 (2) 2025 Standard Updates

TISI regularly updates its standards to align with technological and market developments.
Below are the key 2025 standard changes you must be aware of:

Newly Added Mandatory Standards:

  • Hot & cold water dispensers and distribution boards — effective October 1, 2025.

  • Liquid heater standard published (effective date pending).

Standard Upgrades & Revisions:

  • Standards for skin/hair care appliances and deep fat fryers — mandatory from October 1, 2025.

  • Microwave ovens (including combination types) — mandatory from December 30, 2025.

  • Room air conditioners’ new energy efficiency standardmandatory from April 4, 2026.

  • New versions for electric irons, washing machines, and instantaneous water heaters — effective dates pending.

Tip: Manufacturers must verify the latest version of TIS standards before product testing and design finalization.



4️⃣ TISI Mandatory Certification Process

 Step 1: Confirm Standards & Apply

Check if your product is listed under the TISI mandatory certification catalog.
Submit your application to TISI or its authorized body, and appoint a local Thai representative as the certificate holder.


 Step 2: Product Testing

Conduct product testing in a TISI-recognized laboratory.

  • TISI accepts CB Test Reports, but additional Thai national difference tests are required.

  • Sample quantity: Usually 2–3 units per product model.


 Step 3: Factory Inspection

This is a mandatory and critical step.
TISI inspectors review your factory’s Quality Management System (QMS), including:

  • Incoming/in-process/final inspection records.

  • Calibration of testing equipment.

  • Control of critical parts and materials.

Tip: Holding ISO 9001 certification can help simplify the audit process.


 Step 4: Certification Approval & Mark Usage

Upon approval, TISI issues the Certificate of Conformity (CoC).
All certified products must bear the TISI Mark, which includes:

  • The relevant TIS standard number.

  • A unique certification number.

  • Mark height ≥ 5mm for visibility.


 Step 5: Post-Market Surveillance

To maintain validity, TISI conducts annual surveillance audits, including:

  • Factory re-inspections.

  • Random market sampling and testing.
    Failure to pass these audits may lead to certificate suspension or withdrawal.



5️⃣ TISI Certification Costs & Timeline

 (1) Cost Composition (as of 2025)

Cost ItemReference Range
Application Fee~1,000–5,000 THB (≈ USD 27–135)
Testing Fee~3,000–30,000 THB (≈ USD 80–810)
Factory Audit FeeStarting from 15,000 THB (≈ USD 405)
Annual Maintenance Fee~0.3%–1% of product value
Total Cost ReferenceLow-risk: USD 550–2,000 / High-risk: USD 2,000–3,800

Note: Costs vary based on product category, risk level, and test complexity.


 (2) Certification Timeline

StageEstimated Duration
Application & Document Review2–3 weeks
Product Testing4–8 weeks
Factory Audit & Approval4–6 weeks
Total Average Duration3–6 months


6️⃣  Compliance Essentials & Risk Warnings

 (1) Local Agent Requirement

Foreign applicants must appoint a Thai-registered company as the local representative to hold the certificate.

 (2) Language & Labeling Requirements

  • Technical documents must be in English or Thai.

  • Product labels and user manuals must include Thai language.

  • TISI mark must clearly show certification number, voltage, and country of origin (e.g., “Made in China”).

 (3) Non-Compliance Risks

Selling uncertified products or misusing the TISI mark can lead to:

  • ❌ Fines up to 10,000 THB/day (~USD 270/day)

  • ❌ Imprisonment for up to 2 years

  • ❌ Product confiscation and business suspension


7️⃣ Summary — Key Takeaways

 Confirm your product’s TISI certification scope early.
 Prepare complete and language-compliant technical documents.
 Appoint a qualified Thai representative to manage applications.
 Plan 3–6 months for the certification process.
 Track ongoing TISI standard updates for timely renewals.

By understanding Thailand’s latest TISI requirements, exporters and manufacturers can ensure smooth market entry and long-term compliance.


 Contact Us

BLUEASIA Certification Consulting
 Experts in ASEAN Market Access — TISI (Thailand), SIRIM (Malaysia), SNI (Indonesia), IMDA (Singapore)
Email: king.guo@cblueasia.com
Phone: +86 13534225140