THAILANDSICThailand Standard Industrial Classification

TSIC Activity

25111

Manufacture of metal frameworks for construction

ประกอบกิจการรับเหมาก่อสร้าง ต่อเติม ติดตั้งโครงเหล็ก ซ่อมแซมและบำรุงรักษา งานเหล็กและงานอลูมิเนียมทุกประเภท

What this activity covers

This activity involves manufacturing metal structures and components for construction purposes.

  • Metal structures — Manufacture of metal frameworks for buildings and other constructions
  • Steel scaffolding — Production of steel scaffolding for construction use
  • Bridges and parts — Manufacture of metal structures for bridges
  • Industrial metal structures — Production of metal frameworks for industrial applications
  • Lifting tools — Manufacture of lifting and gripping tools for forklifts

What companies here also do

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

  • Retail and wholesale sales — Selling metal parts and structures to consumers and businesses
  • Installation services — Providing installation services for metal structures
  • Design services — Designing prefabricated construction materials

Not included here

  • Manufacture of parts for ship boilers or power boilers. See activity 25130.
  • Production of railway installation equipment. See activity 25999.
  • Manufacture of ship components. See activity 30110.
  • Manufacture of structural metal structures such as garages or sheds. See activity 25112.

Industry at a glance

as of 23 ก.ค. 69

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

523
active companies operate here
฿5.3Bregistered capital, combined
฿21.1B
Sector revenue · 2025
-35% since 2023
฿473.1M
Net profit · 2025
308 profitable
202320242025

net profitrevenue

Foreign investment

new registrations · 2026 YTD
28%of new registered capital is foreign-held
฿12.0M foreign฿31.1M Thai

Foreigners are strongly represented in new investment under this activity.

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

New in 2026

22-21.4%

registrations, YTD

Registered capital

฿5.3B-45.5%

since year-end

Largest by registered capital

  1. 1BJC Heavy Industry Public Company LimitedRayong฿399.9M
  2. 2Mark Worldwide Co., Ltd.Chon Buri฿295.0M
  3. 3NMG Advanced Composites Co., Ltd.Rayong฿250.0M

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.

181
Registered
since 2022
174
Still active
7
Dissolved
฿1.0M
Median capital
of active

New registrations per year

2022peak 53 in 20222026

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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