BOI Promotion & Company Setup in Si Racha (EEC)
Automotive supply chain, supporting industries, port-adjacent manufacturing and digital-economy BOI applications across the Si Racha plateau and the EECd corridor.
Si Racha: where the EEC's auto belt meets the port
Si Racha is the manufacturing-and-services district sitting between Laem Chabang port and the Amata City corridor. It hosts a long-established Japanese tier-1 and tier-2 supplier community and is the EEC's nominated home for the digital park.
Si Racha's BOI mix combines auto and electronics supporting industries on the plateau with data-centre and cloud-infrastructure projects in the EECd footprint. Port-side logistics integrations are common because Laem Chabang is ten minutes away.
Belaws supports Si Racha BOI applications across automotive supply chain, electronics support, data infrastructure and port-side activities — with frequent coordination between the BOI committee and the Laem Chabang Free Zone office.
Six key BOI clusters in Si Racha
Si Racha sits between two heavyweight neighbours — the Laem Chabang port and the Amata City belt. Each cluster below picks one of these vocations.
EECd — Digital Park
EEC's designated digital cluster on the Si Racha plateau. Data centres, cloud, IoT, cybersecurity, AI platforms and software BOI activities.
J-Park & Japanese supplier belt
Cluster of Japanese-led industrial parks and tier-1/tier-2 supplier estates that grew with Toyota, Honda and Isuzu operations.
Hemaraj Si Racha & Pinthong
Mid-sized private estates serving auto, electronics and consumer-goods tenants between Amata City Chonburi and Laem Chabang.
Laem Chabang interface zone
Industrial plots immediately above the port, used by exporters that need port-side logistics without basing inside the Free Zone.
Si Racha CBD & services corridor
Offices, regional functions and supporting services for the auto and electronics supply chain — broadly along Sukhumvit Road through the town centre.
Plateau hi-tech belt
Plateau location chosen for hi-tech and data-centre projects benefiting from elevation, security perimeter and connectivity.
Which BOI category fits a Si Racha project?
Si Racha BOI applications cluster around auto supporting industries, electronics support, digital infrastructure and port-side operations.
Automotive supporting industries
Tier-1 and tier-2 auto suppliers, components, sub-assemblies, precision parts and tooling — feeding both OEMs and Laem Chabang exports.
Electronics & smart components
Electronics manufacturing, PCB assembly, sensors and IoT devices used across the EEC auto and consumer-electronics supply chains.
Data centres & cloud
Data centres, cloud services, cybersecurity, AI platforms and other digital-economy BOI activities anchored in the EECd footprint.
Port-adjacent logistics
Bonded logistics, third-party warehousing and export-oriented packaging tied to Laem Chabang container traffic.
How to qualify for BOI promotion in Si Racha
Si Racha applications often require coordination between BOI privileges, Laem Chabang Free Zone status and downstream operating permits.
- Activity checkMap the activity to a BOI category. Si Racha covers both manufacturing supporting industries and digital-economy activities — these sit in different parts of the BOI list.
- Site selectionCompare the EECd plateau (digital), J-Park / Hemaraj plots (manufacturing) and the Laem Chabang interface zone (export-led logistics) based on activity and access needs.
- Application filingFile the project through e-BOI with documentation tailored to the chosen activity track.
- BOI pitchPitch the project to the BOI committee. Digital and data-centre projects emphasise power, connectivity and tier-rating; auto suppliers emphasise OEM relationships and technology level.
- Approval & companyReceive the approval letter, incorporate the promoted entity, open the bank account and transfer the registered capital.
- FBC, Free Zone & opsApply for the Foreign Business Certificate, coordinate any Laem Chabang Free Zone licence and start BOI annual reporting.
BOI mistakes to avoid for Si Racha projects
Do
- Pick between EECd, J-Park, Hemaraj and the Laem Chabang interface zone based on the activity, not the rental price
- Plan power, cooling and tier-rating for data-centre projects very early
- Coordinate Laem Chabang Free Zone status with the BOI promoted-company timeline if relevant
- Use the BOI's One-Stop Service Centre for engineer visas and work permits
- Document OEM letters of intent for auto supplier projects
- Schedule the first BOI annual report from day one of operations
Don't
- Apply for a digital-economy BOI on a non-EECd plot without verifying eligibility
- Assume Free Zone status replaces BOI privileges — they are separate regimes
- Skip the FBC step after BOI approval — required for foreign-majority operations
- Lock in a J-Park or Pinthong plot before confirming BOI category fit
- Underestimate connectivity diversity requirements for data centres
- Forget the foreign-to-Thai employee ratio attached to the activity
Why Si Racha is at the centre of EEC supporting industries
Si Racha grew with Japan's automotive expansion into Thailand. Today it is the EEC's main address for tier-1 and tier-2 auto suppliers, electronics supporting industries and — increasingly — digital infrastructure under the EECd designation.
From Bangkok, Si Racha is about 110 km on Motorway 7 — roughly 75 minutes by road. Laem Chabang port is ten minutes south.
Belaws BOI coverage across Si Racha
Each Si Racha sub-area maps to a different family of BOI activities.
Our five BOI services for Si Racha projects
Eligibility & track mapping
Three-business-day written assessment covering both manufacturing and digital-economy BOI tracks available on the Si Racha plateau.
Application preparation & filing
Document compilation, BOI form completion, financial projections and e-BOI submission tailored to the chosen track.
BOI pitch preparation
Mock pitch sessions with sector-specific briefings — supplier OEM commitments for auto, tier-rating for data centres.
Promoted company setup
Incorporation, capital structuring, corporate bank account opening and registered capital transfer assistance.
Free Zone & post-approval
Foreign Business Certificate, Laem Chabang Free Zone coordination if relevant, BOI visas and annual BOI reporting.
Our four-step BOI process
- Eligibility assessmentThree business days for a written assessment with the recommended BOI track (manufacturing or digital).
- Application preparation & filingOne to two weeks to prepare and file through e-BOI.
- BOI pitchOne to two weeks after filing, you pitch the project to the BOI committee in Bangkok.
- Approval & company registrationAround three weeks for promoted company registration; two more for the Foreign Business Certificate.
Location
Continue across the EEC
Explore the rest of the Belaws EEC silo or jump back to the overview.
FAQ
Is Si Racha the right BOI base for a Japanese tier-1 auto supplier?
Often yes. Si Racha hosts the deepest Japanese supplier community in Thailand, with established J-Park and adjacent estates supporting tier-1 and tier-2 manufacturers. BOI categories for auto components, sub-assemblies and precision parts are routinely approved here.
Can a hyperscale data centre apply under the EECd designation?
Yes — data centres and cloud-infrastructure projects are part of the BOI's actively promoted digital-economy categories, and EECd at Si Racha is the EEC's nominated digital cluster. Power, cooling, tier-rating and connectivity commitments are typically reviewed at the BOI pitch.
How does the Laem Chabang Free Zone interact with a Si Racha BOI?
A BOI-promoted company can also hold Free Zone status if the operations are inside the Free Trade Zone. The two regimes coexist: BOI privileges follow BOI rules; Free Zone follows Customs rules. They are commonly combined for export-oriented manufacturers.
What is the minimum capital for a Si Racha BOI?
From THB 1,000,000 for most promoted activities, with several digital-economy and supporting-industry categories requiring higher minimums. The exact figure is confirmed during the eligibility assessment.
Can BOI visas cover Japanese and Korean engineers based in Si Racha?
Yes — BOI's One-Stop Service Centre handles visas and work permits under a streamlined regime for BOI-promoted companies. The foreign-to-Thai employee ratio depends on the activity.
How long is the full BOI process for a Si Racha project?
Roughly eight to twelve weeks end to end on a complete file: three days for eligibility, one to two weeks for filing, one to two weeks until the BOI pitch and around three weeks for promoted company registration, plus two weeks for the Foreign Business Certificate.
Does data-centre power supply qualify for BOI deductions?
BOI promoted companies benefit from defined deductions on electricity, water and transportation costs, subject to BOI's published rules. For hyperscale projects, additional sector-specific provisions may apply under EEC enhancements.
Can a foreign-owned electronics company own land in Si Racha?
BOI promotion grants permission to own land for the promoted activity, as an exception to Thailand's foreign land ownership restrictions. The right activates on issuance of the BOI certificate, not at application.
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