THAILANDSICThailand Standard Industrial Classification

TSIC Activity

24109

Manufacture of other basic iron and steel, not elsewhere classified

ประกอบกิจการ ผลิต นำเข้า ส่งออก จำหน่าย เหล็กทุกชนิด ตลอดจนวัสดุก่อสร้างที่ใช้สำหรับงานก่อสร้างทั้งในรูปแบบออนไลน์ และออฟไลน์ทุกประเภท โดยไม่ใช่ธุรกิจขายตรงหรือธุรกิจตลาดแบบตรง

What this activity covers

This activity involves the production of various steel products through hot and cold processing methods.

  • Steel Bars and Rods — Production of steel bars and wire rods by hot rolling
  • Hot Rolled Sections — Production of hot rolled steel sections
  • Cold Drawn Sections — Production of steel bars and sections by cold drawing
  • Surface Processing — Surface grinding or turning of steel products
  • Cold Formed Sections — Production of steel sections by cold forming
  • Welded Steel Products — Production of steel sheets and sections by welding
  • Structural Steel — Production of structural steel sections like H-shaped and I-shaped steel

What companies here also do

Seen in real company registrations under this code — beyond the official definition, so licensing may differ.

  • Metal Processing — Processing and galvanising various metal shapes
  • Construction Steel — Production and sale of construction steel products
  • Metal Products Trading — Trading of various metal products including stainless steel

Not included here

  • Manufacture of tubes, pipes, hollow profiles and pipe fittings or tubes of cast iron, see activity 24311.
  • Manufacture of seamless steel tubes and pipes by centrifugal casting method. See activity 24312.

Industry at a glance

as of 23 ก.ค. 69

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

1,012
active companies operate here
฿1185.0Bregistered capital, combined
฿304.1B
Sector revenue · 2025
-37% since 2023
฿1.9B
Net profit · 2025
530 profitable
202320242025

net profitrevenue

Foreign investment

new registrations · 2026 YTD
58%of new registered capital is foreign-held
฿24.0M foreign฿17.5M Thai

Foreigners are strongly represented in new investment under this activity.

2 of the 5 largest companies here are foreign-owned Thailand subsidiaries.

New in 2026

18-21.7%

registrations, YTD

Registered capital

฿1185.0B-0.2%

since year-end

Largest by registered capital

  1. 1Sahaviriya Steel Industries Public Company LimitedBangkok฿871.6B
  2. 2G Steel Public Company LimitedSamut Prakan฿158.1B
  3. 3G J Steel Public Company LimitedSamut Prakan฿27.6B

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.

186
Registered
since 2022
177
Still active
9
Dissolved
฿1.0M
Median capital
of active

New registrations per year

2022peak 53 in 20232026

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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