THAILANDSICThailand Standard Industrial Classification

TSIC Activity

27102

Manufacture of electric transformers

ประกอบกิจการให้บริการผลิตไฟฟ้า MDB ผลิตอุปกรณ์ไฟฟ้า จำหน่ายอุปกรณ์ไฟฟ้า เครื่องปั่นไฟ

Definition

Production of transformers for power distribution, Production of arc welding transformers, Production of transformers used in substations for power distribution, Production of ballast for fluorescent lamps.

Excluded from this code

  • Manufacture of inductors and switches using electronic components. See activity 26109.

Foreign ownership

Not on the Foreign Business Act restricted lists.

The Foreign Business Act B.E. 2542 (1999) restricts majority foreign ownership only for the activities named in its three annexed Lists. This activity is not among the mappings we hold, so a foreign investor can generally hold up to 100% of the equity, subject to any sector-specific licence and to minimum-capital rules (typically THB 2 million per restricted business, or THB 3 million where a Foreign Business Licence applies).

If an activity is restricted, the routes to foreign majority

  • BOI promotion — the Board of Investment can grant up to 100% foreign ownership for promoted activities, with tax and non-tax incentives.
  • Foreign Business Licence — permission from the Ministry of Commerce to operate a List 2 or List 3 activity as a foreign-majority company.
  • US Treaty of Amity — US nationals may hold majority ownership in most activities, treated as Thai nationals for FBA purposes.

This is general guidance, not legal advice, and mappings are auto-derived. The schedules of the Foreign Business Act B.E. 2542 are the authority; verify against the Act, or ask us to check your specific activity. See the full foreign ownership reference.

See the full foreign ownership reference for all three FBA lists.

Companies registered since 2022

Browse all

New DBD registrations under this activity since 2022, the period the registry snapshot covers, not the full historical register.

25
Registered
since 2022
25
Still active
0
Dissolved
฿1.0M
Median capital
of active

New registrations per year

2022peak 7 in 20242026

Largest active companies by registered capital

Source: Department of Business Development (DBD) new-registration records, 2022 to present. Counts cover companies first registered in that window, reflect the latest snapshot load, and may lag the live register.

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