TSIC Activity
Manufacture of basic iron and steel in primary and intermediate form
ประกอบกิจการผลิตและรับจ้างทำงานเหล็ก งานอลูมิเนี่ยม งานสแตนเลส และงานอื่นที่เกียวข้อง ตลอดทั้งจำหน่ายสินค้าดังกล่าว
What this activity covers
This activity involves the production and processing of basic iron and steel in various forms.
- Iron smelting — Operations using blast furnaces and steelmaking furnaces
- Steel production — Manufacturing steel in ingots or other basic forms
- Iron alloys — Production of various iron alloys
- Semi-finished steel — Production of billets, flat bars, and large bars
- Remelting scrap — Remelting scrap iron or steel into ingots
- Iron pellets and powders — Production of iron pellets and iron powders
What companies here also do
Seen in real company registrations under this code — beyond the official definition, so licensing may differ.
- Metal processing — Cutting and shaping metals like steel and aluminium
- Manufacturing steel products — Producing pipes, sheets, and other steel items
Industry at a glance
as of 23 ก.ค. 69The whole registered industry under this activity, every registration year, from the DBD DataWarehouse.
net profitrevenue
Foreign investment
new registrations · 2026 YTDBased on few new registrations this year — read as a rough signal only.
New in 2026
registrations, YTD
Registered capital
since year-end
Largest by revenue
Latest filed-year revenue, not a multi-year total
Largest by registered capital
- 1Millcon Steel Public Company LimitedBangkok฿4.1B
- 2Kobelco Millcon Steel Co., Ltd.Rayong฿2.8B
- 3Sahaviriya H-Beam Co., Ltd.Bangkok฿2.0B
Source: Department of Business Development DataWarehouse. Financial figures are combined totals of companies that filed statements; revenue and profit shown for the latest three reporting years.
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
- MANUTHAI TECHNOLOGY CO., LTD.Private limited company · กรุงเทพมหานคร฿10.0M
- BJC K. STAINLESS STEEL AND ENGINEERING CO., LTD.Foreign branch · เชียงใหม่฿5.0M
- SIAM THREAD RODS CO., LTD.Private limited company · สมุทรปราการ฿5.0M
- SEIKO GRAND ENERGY CO., LTD.Private limited company · กรุงเทพมหานคร฿5.0M
- XINHUICHENG RESOURCE CO., LTD.Registered ordinary partnership · ฉะเชิงเทรา฿5.0M
- A.A.P. STEEL TRADING LIMITED PARTNERSHIPLimited partnership · สมุทรสาคร฿4.0M
- PROCURA PRECIOUS METAL CO., LTD.Private limited company · กรุงเทพมหานคร฿3.0M
- TTA METAL RECYCLING CO., LTD.Registered ordinary partnership · ชลบุรี฿2.0M
- BBA MATERIALS (THAILAND) CO., LTD.Private limited company · กรุงเทพมหานคร฿1.0M
- TRIPLE A INTER PRODUCTS AND SERVICE CO., LTD.Private limited company · กรุงเทพมหานคร฿1.0M
- WATTHANA MACHINE GROW CO., LTD.Private limited company · พระนครศรีอยุธยา฿1.0M
- MOONANURIN STEEL INDUSTRY CO., LTD.Private limited company · สมุทรปราการ฿1.0M
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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