TSIC Class
Manufacture of Transformers, Electrical Components and Equipment
Definition
The manufacture of transformers, electrical components, and related equipment used in power distribution.
Foreign ownership
No Foreign Business Act restriction mapped at this level.
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). Narrower codes beneath this one may still carry their own restrictions.
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 allNew DBD registrations under this code since 2022, summed across every 5-digit activity beneath it. Not the full historical register.
New registrations per year, all sub-codes combined
Source: DBD new-registration records, 2022 to present.
Activities under 3313
- 33131Repair and maintenance of measuring, testing, navigating and control equipmentประกอบกิจการให้บริการด้านการซ่อมบำรุง วิศวกรรม การปรับตั้งค่า การติดตั้ง การย้ายที่ และการปรับปรุงเครื่อง จำลองการบิน อุปกรณ์ฝึกอบรมการบิน ระบบภาพ ระบบเคลื่อนไหว ระบบเสียง และอุปกรณ์ฝึกอบรมด้านการบินท
- 33132Repair and maintenance of irradiation, electromedical and electrotherapeutic equipmentประกอบกิจการซ่อมแซม ลับคม และให้เช่าเครื่องมือผ่าตัดทางการแพทย์
- 33133Repair and maintenance of optical instruments and photographic equipment
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