Factory License Services in Thailand
Operating a factory in Thailand requires a valid license from the Department of Industrial Works. B-accounting guides manufacturers, industrial operators, and foreign investors through factory license applications, renewals, expansions, and ongoing regulatory compliance.
Our Factory License Services
Operating a factory in Thailand requires a valid license from the Department of Industrial Works. We support manufacturers and foreign investors across:
01
Factory Classification
Feasibility assessment to determine whether your operation is Type 1, 2, or 3.
02
New Factory License Application
Full application preparation and submission to the DIW.
03
DIW Liaison & Inspection Support
Coordination through the Department of Industrial Works' review and site inspection.
04
License Renewals & Amendments
Keeping your license current as your operations change.
05
Factory Expansion Approvals
Approval support when you add machinery or expand production.
06
Ongoing Compliance Management
Annual reporting and environmental monitoring obligations, managed for you.
Factory licensing can be combined with BOI promotion for manufacturers seeking both regulatory approval and investment incentives.
Our Factory License Process
We guide your application through six stages:
Classification Assessment
We determine your factory's classification under the Factory Act.
Document Preparation
We prepare plans, machinery schedules, and environmental reports as required.
DIW Submission
We submit your application to the Department of Industrial Works.
Site Inspection
We support you through the required site inspection.
License Issuance
Once approved, your factory license is issued.
Ongoing Compliance
We help manage annual reporting and environmental monitoring obligations.
Why Choose B-accounting for Factory Licensing
Factory License FAQ
Does every manufacturer need a factory license?
Only if you use machinery of 5HP or more, or employ 7 or more production workers (the Type 1 notification threshold).
How long does a Type 3 license take?
30-90 business days, including the required site inspection.
Can a license transfer if ownership changes?
A share transfer leaves the license valid; an asset purchase or a new entity requires a new application.
What if we add machinery beyond our licensed capacity?
It must be reported and approved by the DIW before use, and may trigger reclassification.
Is a license needed inside an IEAT Free Zone or a BOI facility?
Yes - it's complementary to, not a replacement for, Free Zone or BOI status.
What environmental obligations apply to a Type 3 factory?
Wastewater treatment, air emissions, noise control, hazardous waste handling, periodic monitoring reports, and possibly an Environmental Impact Assessment.
Can B-accounting handle full manufacturing setup, including company registration and BOI?
Yes, we provide this as an integrated service.
Ready to License Your Factory in Thailand?
Our specialists will classify your operations, prepare the full application, and manage the DIW process - so you can focus on production, not paperwork.
Book a Free Assessment