TSIC Activity

24101

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. 69

The whole registered industry under this activity, every registration year, from the DBD DataWarehouse.

218
active companies operate here
฿27.9Bregistered capital, combined
฿85.3B
Sector revenue · 2025
-5% since 2023
฿652.9M
Net profit · 2025
113 profitable
202320242025

net profitrevenue

Foreign investment

new registrations · 2026 YTD
36%of new registered capital is foreign-held
฿5.0M foreign฿9.0M Thai

Based on few new registrations this year — read as a rough signal only.

New in 2026

6+200.0%

registrations, YTD

Registered capital

฿27.9B-0.6%

since year-end

Largest by revenue

Latest filed-year revenue, not a multi-year total

  1. 1Thai Sing Steel Co., Ltd.฿23.7B
  2. 2Yong Sing Steel (Thailand) Co., Ltd.฿23.3B
  3. 3TY Steel Co., Ltd.฿4.6B
  4. 4Phaen Lek Wilas Thai Co., Ltd.฿3.8B
  5. 5Kobelco Millcon Steel Co., Ltd.฿3.7B

Largest by registered capital

  1. 1Millcon Steel Public Company LimitedBangkok฿4.1B
  2. 2Kobelco Millcon Steel Co., Ltd.Rayong฿2.8B
  3. 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 all

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

18
Registered
since 2022
18
Still active
0
Dissolved
฿1.0M
Median capital
of active

New registrations per year

2022peak 6 in 20222026

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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