THAILANDSICThailand Standard Industrial Classification

TSIC Activity

19201

Manufacture of refinery petroleum products

ประกอบกิจการ ผลิต และจัดจำหน่ายพลังงานทดแทนประเภทน้ำมันเชื้อเพลิง และน้ำมันดิบ รวมถึงผลิตภัณฑ์ข้างเคียง (By Product) จากการแปรรูปขยะพลาสติกด้วยกระบวนการไพโรไลซิส แอนด์ แก๊สซิฟิเคชั่น (Pyrolysis and Ga

What this activity covers

This activity involves producing fuels and other products from crude oil and related minerals.

  • Crude oil refining — Processes like fractional distillation and oil cracking
  • Motor fuel production — Includes gasoline and kerosene
  • Heavy fuel production — Production of light, medium, and heavy fuels
  • Gas production — Gases like ethane, propane, and butane from refining
  • Petroleum product distribution — Distribution of various petroleum products

What companies here also do

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

  • Renewable energy production — Producing renewable energy products
  • Lubricant production — Manufacturing lubricants for industrial use
  • Petroleum exploration — Exploring and developing petroleum resources

Industry at a glance

as of 23 ก.ค. 69

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

120
active companies operate here
฿167.3Bregistered capital, combined
฿3188.7B
Sector revenue · 2025
-17% since 2023
฿57.2B
Net profit · 2025
37 profitable
202320242025

net profitrevenue

Foreign investment

new registrations · 2026 YTD
0%of new registered capital is foreign-held
฿0 foreign฿12.0M Thai

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

New in 2026

5+25.0%

registrations, YTD

Registered capital

฿167.3B-1.2%

since year-end

Largest by revenue

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

  1. 1PTT Public Company Limited฿1562.3B
  2. 2Thai Oil Public Company Limited฿427.2B
  3. 3PTT Global Chemical Public Company Limited฿397.1B
  4. 4IRPC Public Company Limited฿280.1B
  5. 5Bangchak Corporation Public Company Limited฿266.1B

Largest by registered capital

  1. 1PTT Global Chemical Public Company LimitedBangkok฿45.1B
  2. 2PTT Public Company LimitedBangkok฿28.6B
  3. 3Thai Oil Public Company LimitedBangkok฿22.3B

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.

14
Registered
since 2022
14
Still active
0
Dissolved
฿5.0M
Median capital
of active

New registrations per year

2022peak 6 in 20252026

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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