THAILANDSICThailand Standard Industrial Classification

TSIC Activity

25921

Treatment and coating of metals

ประกอบกิจการให้บริการพ่นทราย ยิงทราย ลอกสี ลอกสนิม ชิ้นส่วนรถจักรยานยนต์ รถยนต์ และโครงสร้างเหล็กทุกชนิด

What this activity covers

Companies in this sector specialise in various metal treatment and coating processes.

  • Metal plating — Applying a metal layer to surfaces
  • Surface treatment — Treating metal surfaces with oxides
  • Sandblasting — Cleaning and smoothing metal surfaces
  • Polishing — Smoothing and shining metal surfaces
  • Metal coating — Applying non-metallic coatings to metals
  • Painting — Applying paint to metal surfaces
  • Metal engraving — Carving designs into metal surfaces

What companies here also do

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

  • Hardware production — Manufacturing various hardware products
  • Electroplating — Using electric current for metal plating
  • Welding services — Joining metal parts together

Not included here

  • Horseshoe Maker's Activities View Activity 01629
  • Printing on metal View 18119 activities
  • Rolling of precious metals onto materials based on metal or other materials. See activity 24201.

Industry at a glance

as of 23 ก.ค. 69

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

1,060
active companies operate here
฿14.4Bregistered capital, combined
฿43.7B
Sector revenue · 2025
-3% since 2023
฿2.2B
Net profit · 2025
533 profitable
202320242025

net profitrevenue

Foreign investment

new registrations · 2026 YTD
84%of new registered capital is foreign-held
฿136.0M foreign฿26.3M 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

27+58.8%

registrations, YTD

Registered capital

฿14.4B-16.8%

since year-end

Largest by registered capital

  1. 1Mint Asia Pacific Co., Ltd.Rayong฿800.0M
  2. 2Pinda Technology (Thailand) Co., Ltd.intlChon Buri฿700.0M
  3. 3Superia Plating Technology (Thailand) Co., Ltd.Phra Nakhon Si Ayutthaya฿631.3M

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.

143
Registered
since 2022
137
Still active
6
Dissolved
฿1.0M
Median capital
of active

New registrations per year

2022peak 39 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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