TSIC Activity
Manufacture of nitrogen compounds
ประกอบกิจการผลิต และจำหน่าย สารกรองน้ำทุกชนิด
Definition
Production of products containing nitrogen as a component, such as nitrate, sulfonic acid, ammonia, ammonium chloride, ammonium carbonate, nitrite and nitrate.
Excluded from this code
- Guano Mining See Activities 08910
- Production of agricultural chemicals such as pesticides. See activity 20210.
- Operations on the production of organic fertilizer from waste. See activity 38213.
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 allNew DBD registrations under this activity since 2022, the period the registry snapshot covers, not the full historical register.
New registrations per year
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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