IEAT Thailand: The Complete Guide for Foreign Entrepreneurs (2026)
If you’re looking at manufacturing, industrial operations, or export-focused businesses in Thailand, IEAT Thailand (The Industrial Estate Authority of Thailand) offers something almost nothing else in the country does: 100% foreign ownership, the right to own land, and a customs environment where imported materials are treated as if they’ve never entered Thailand at all. It’s a structure designed for serious industrial investors, and in 2026, it’s more accessible than ever.
This guide walks you through what IEAT Thailand is, what the two zone types mean in practice, what benefits you actually get, and how the setup process works.
What Is IEAT Thailand?
IEAT is a state enterprise under Thailand’s Ministry of Industry. Its job is to develop and manage industrial estates across the country: designated zones with ready-built infrastructure, utilities, transport links, and a regulatory environment designed specifically for industrial and manufacturing operations.
As of 2026, IEAT Thailand oversees 82 industrial estates across 18 provinces – 14 operated directly by IEAT and 68 jointly developed with private partners. Together they house over 4,800 factories and represent more than THB 15 trillion in cumulative investment.
2026 Strategy Update: IEAT Thailand’s current framework is ‘Green & Digital Innovation’ – pushing eco-industrial estates, low-carbon manufacturing standards, and digital infrastructure upgrades. New investors in strategic zones are being offered up to two years of free land rent as part of the incentive package. |
The Two Zone Types Inside IEAT Thailand Estates
Understanding the IEAT Thailand zone structure
Every IEAT Thailand industrial estate is divided into two distinct zones. Which one applies to your business makes a significant difference to your customs treatment, tax benefits, and operating requirements.
Zone 1 General Industrial Zone (GIZ) For manufacturing, commercial, and service activities. Land can be bought or leased. Standard customs apply. Best for: businesses selling into Thailand’s domestic market, or combining domestic and export sales. | Zone 2 IEAT Free Zone Goods are legally treated as outside Thailand’s customs territory. No import duty or VAT on raw materials or machinery, with no time limit. On-site customs officers enable fast-track clearance. Best for: export-focused manufacturers. |
The key difference: in the GIZ, you’re inside Thailand for customs purposes. In the Free Zone, you’re legally outside Thailand’s customs territory until your goods enter the domestic market. If you export most of your output, the Free Zone structure can mean you never pay import duty or VAT on your inputs at all. |
What You Actually Get in IEAT Thailand
Tax benefits of IEAT Thailand
The customs and tax benefits available inside IEAT Thailand estates confirmed directly from the IEAT Handbook are:
- Exemption from import duty on machinery used in production
- Exemption from import duty on raw materials used in manufacturing for export
- Exemption from export duty on goods produced inside the estate
- Exemption from VAT on goods manufactured for export
- Exemption from excise tax on exported goods
- In the Free Zone specifically: all of the above apply with no time limit, since goods are treated as outside Thai customs territory
Non-tax benefits of IEAT Thailand
Beyond the tax package, every IEAT Thailand operator receives:
100% Foreign Ownership No Thai partner needed. No Foreign Business Act restrictions for approved industrial activities inside IEAT estates. | Land Ownership Under Section 44 of the IEAT Act, foreign companies can own land freehold for factory use, a legal exception to Thailand’s general prohibition on foreign land ownership. |
Foreign Workers Bring in foreign technicians, experts, and managers without the standard 4:1 Thai-to-foreign ratio. Family dependent visas available for foreign staff. | Currency Remittance Permission to remit profits, dividends, and funds abroad in foreign currency without restriction. |
Ready Infrastructure Electricity, water supply, wastewater treatment, flood prevention, and road networks managed by IEAT or private estate operators. | One Stop Service Land purchase, building permits, business registration, visas, work permits, and customs — all processed through a single IEAT One Stop Service Centre (OSS). |
The IEAT Thailand land ownership caveat
Land ownership for foreign companies in IEAT Thailand estates is real and legally supported – but it comes with two important conditions. First, you must apply separately for land ownership permission using Form IEAT 15.1 S and receive IEAT board approval before purchasing. Second, if a foreign investor exits the business, the land must be sold within 3 years. The ownership right is for industrial use, not general property investment.
Which Businesses Are Right for IEAT Thailand?
Who fits IEAT Thailand – and who doesn’t
IEAT Thailand estates are built for industrial and manufacturing operations. The types of businesses that genuinely benefit:
- Manufacturing companies – automotive parts, electronics, food processing, chemicals, textiles, metals
- Export-focused producers who import raw materials and ship finished goods abroad
- Logistics and warehousing businesses supporting industrial operations inside the estate
- Companies relocating supply chain operations from China, Japan, or other markets to Thailand
- Businesses that need to own land and factory buildings – not just lease them
Businesses that don’t fit IEAT Thailand:
- Digital, software, and service businesses with no physical production – BOI promotion is the better route
- Small retail or consumer-facing businesses – IEAT estates are not commercial zones
- Businesses selling primarily into the Thai domestic market – Free Zone customs benefits are designed for export
Key IEAT Thailand Industrial Estates in 2026
The most important IEAT Thailand locations for foreign investors
Estate | Province | Best for |
Map Ta Phut | Rayong | Petrochemical, heavy industry, deep-sea port access |
Laem Chabang | Chonburi | Logistics, export manufacturing, port-adjacent |
Eastern Seaboard | Rayong | Automotive, electronics, EV supply chain |
Amata Nakorn | Chonburi | Automotive, industrial manufacturing, largest private estate |
Amata City | Rayong | Advanced manufacturing, Japanese investment cluster |
WHA Rayong | Rayong | EV, electronics, food processing |
Nakhon Sawan (LPP) | Nakhon Sawan | Bio-economy, agri-processing, new estate 2026 |
Most of the major IEAT Thailand estates in Chonburi and Rayong sit within the Eastern Economic Corridor (EEC) – meaning businesses there can combine IEAT benefits with EEC incentives and BOI promotion for a stacked incentive package that is significantly more powerful than any single structure alone. |
How to Set Up in IEAT Thailand - Step by Step
The IEAT Thailand application process for foreign businesses
The full process from initial application to operational factory typically takes 3-6 months depending on construction timeline. Here’s how it works:
1 | Choose your estate and zone Identify which IEAT Thailand estate fits your business and whether you need a General Industrial Zone or Free Zone plot. The estate determines infrastructure, logistics access, and available plot sizes. |
2 | Apply for land use permission (Form no.01/1) Submit online via the IEAT e-Permission & Privilege system at e-pp.ieat.go.th, or download the form from ieat.go.th and submit at the IEAT One Stop Service Centre. Include your business description, production process, machinery list, and environmental documents. IEAT reviews within 1 business day once documents are complete. |
3 | Apply for building construction permit (Form no.02/1) Once land use is approved, apply to build. Plans must comply with IEAT standards, building codes, and environmental requirements. If your factory uses water or generates air emissions, additional environmental documentation is required. IEAT reviews building plans within 45 days. |
4 | Apply for land ownership (Form IEAT 15.1 S) If you want to own rather than lease the land, submit a separate land ownership application requiring IEAT board approval. Foreign companies must demonstrate genuine industrial use. Once approved, IEAT notifies the Land Department to proceed with ownership transfer. |
5 | Notify commencement of operations (Form no.03/1) At least 30 days before your planned start date, notify IEAT. An inspector will check the facility for compliance with approved plans, safety standards, and environmental requirements before you begin operations. |
6 | Apply for visas and work permits Foreign staff visas, work permits, and dependent visas are all processed through the IEAT One Stop Service Centre, significantly faster than standard Thai immigration and without the 4:1 Thai-to-foreign employee ratio. |
IEAT Thailand vs BOI - Which Is Right for You?
Choosing between BOI promotion and IEAT Thailand
Both BOI and IEAT Thailand offer 100% foreign ownership and significant tax benefits. The key difference is operational: BOI is an incentive framework that works across many locations. IEAT is a physical zone – you operate inside an industrial estate.
The good news: they’re not mutually exclusive. Many businesses inside IEAT Thailand estates also hold BOI promotion – stacking land ownership rights and customs benefits from IEAT with extended CIT exemptions from BOI. If your project is in an eligible sector, applying for both is often the optimal approach.
If you manufacture for export and need to own your factory land, IEAT Thailand is the right foundation. If you’re in tech, digital services, or healthcare and don’t need physical industrial infrastructure, BOI on its own is simpler and more appropriate. |
Ready to set up in an IEAT Thailand industrial estate?
Act & Align Advisor helps foreign entrepreneurs navigate IEAT Thailand applications, BOI promotion, company registration, and visa processing. Based in Bangkok.
