THAILANDSICThailand Standard Industrial Classification

TSIC Activity

25121

Manufacture of central heating boilers and radiators

ประกอบกิจการผลิต รับจ้างผลิต บรรจุ ประกอบ ออกแบบ วิจัยและพัฒนา อุปกรณ์แลกเปลี่ยน ความร้อน (ฮีท เอ็กซ์เชนเจอร์) เช่น เรเดียเตอร์ และ แอร์ คูลเลอร์ และ แบตเตอรี่ คูลลิ่ง ซิสเต็ม และ อลูมิเนียม ไดคาสติ้ง

What this activity covers

This activity involves the production of central heating radiators and cooling equipment.

  • Central heating radiators — Production of radiators for heating systems
  • Cooling equipment — Manufacture of equipment for cooling purposes
  • Heat exchange equipment — Production of devices for transferring heat
  • Cooling towers — Design and manufacture of cooling towers
  • Immersion cooling systems — Production of systems for immersion cooling

What companies here also do

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

  • Electrical equipment — Production and installation of electrical equipment

Not included here

  • Manufacture of electric stoves and electric water heaters for household use, see activity 27502
  • Manufacture of non-electric stoves and heaters for household use, see activity 27503
  • Automobile radiator production. View activities 29309.

Industry at a glance

as of 23 ก.ค. 69

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

23
active companies operate here
฿993.2Mregistered capital, combined
฿581.4M
Sector revenue · 2025
+101% since 2023
฿-3695793
Net profit · 2025
9 profitable
202320242025

net profitrevenue

New in 2026

0-100.0%

registrations, YTD

Registered capital

฿993.2M+7.0%

since year-end

Largest by revenue

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

  1. 1Heataway Co., Ltd.฿208.7M
  2. 2K.Y. Intertrade Co., Ltd.฿115.9M
  3. 3Hanza Intertech Co., Ltd.฿51.1M
  4. 4Thai Heating Development Co., Ltd.฿47.6M
  5. 5Thaiwand Advance Group Co., Ltd.฿40.1M

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.

6
Registered
since 2022
5
Still active
1
Dissolved
฿5.0M
Median capital
of active

New registrations per year

2023peak 3 in 20242025

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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