THAILANDSICThailand Standard Industrial Classification

TSIC Activity

23910

Manufacture of refractory products

ประกอบการกิจการผลิตบอร์ดกันไฟและบอร์ดอื่นๆทุกชนิด

Definition

Manufacture of refractory cements and refractory concretes, etc.; manufacture of refractory goods, heat-resistant ceramics of diatomite, refractory bricks and tiles, etc.; laboratory autoclaves, crucibles for melting metal, muffles, nozzles, tubes, pipes, etc.; also includes the manufacture of refractory materials containing magnesite, dolomite or chromite.

Industry at a glance

as of 22 ก.ค. 69

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

31
active companies operate here
฿1.1Bregistered capital, combined
฿5.1B
Sector revenue · 2025
-12% since 2023
฿583.6M
Net profit · 2025
14 profitable
202320242025

net profitrevenue

Foreign investment

new registrations · 2026 YTD
37%of new registered capital is foreign-held
฿5.0M foreign฿8.5M Thai

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

New in 2026

4+300.0%

registrations, YTD

Registered capital

฿1.1B+87.5%

since year-end

Largest by revenue

  1. 1สยามอุตสาหกรรมวัสดุทนไฟ จำกัด฿4.5B
  2. 2ลอง ลอง คลีน รูม เทคโนโลยี (ไทยแลนด์) จำกัด฿239.2M
  3. 3จี. เอส. ซิแร็มมิคซ์ แอนด์ พาเลท จำกัด฿84.8M
  4. 4กิจอุดมทรัพย์฿46.5M
  5. 5ภัทรา รีแฟรกทอรี จำกัด฿43.4M

Largest by registered capital

  1. 1ลอง ลอง คลีน รูม เทคโนโลยี (ไทยแลนด์) จำกัดChachoengsao฿500.0M
  2. 2สยามอุตสาหกรรมวัสดุทนไฟ จำกัดBangkok฿300.0M
  3. 3อิมเมอรี่ส์ คิล์น เฟอร์นิเจอร์ (ประเทศไทย) จำกัดintlBangkok฿150.0M

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.

7
Registered
since 2022
7
Still active
0
Dissolved
฿4.0M
Median capital
of active

New registrations per year

2023peak 3 in 20262026

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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