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เอกสารบริษัทที่ใช้ประกอบคำขอใบอนุญาตทำงาน
Thailand IEAT · Industrial Estates & Free Zones

Thailand Industrial Estates · 12 Priority Sites

IEAT + Customs Free Zone + BOI — 0% import duty, 0% VAT, foreign land ownership under §44, Smart Visa/LTR + Work Permit at One-Stop Service. NYC Visa covers Feasibility → IEAT 01 → Customs FZ → BOI → Factory licence end-to-end in 90–180 days.

Bangkok Metro · Bangkok · 2,559 ไร่ / 409 ha

🏭 Lat Krabang Industrial Estate (Bangkok)

IEAT-operated · Free Zone · Free Zone

Only Bangkok-city Free Zone with on-site ICD — 48-hour factory-to-Laem Chabang export turnaround

Free site-match audit
Bangkok Metro · Samut Prakan · 1,004 ไร่ / 160.6 ha

⚙️ Bang Plee Industrial Estate (Samut Prakan)

IEAT-operated · Free Zone · Free Zone

Gem & Jewelry Free Zone — 0% VAT + import-duty exemption on rough stones under Royal Decree No. 690

Free site-match audit
Bangkok Metro · Samut Prakan · 5,472 ไร่ / 875.5 ha

🏗️ Bangpoo Industrial Estate (Samut Prakan)

IEAT-operated · Free Zone · Free Zone

Largest cold-chain food cluster in Thailand · 24/7 on-site customs clearance

Free site-match audit
EEC · Rayong · 8,165 ไร่ / 1,306 ha

🛢️ Map Ta Phut Industrial Estate (Rayong)

IEAT-operated · Free Zone + EEC overlay · Free Zone

Deep-sea LNG terminal + integrated cracker — feedstock-to-polymer within one fence, plus 13-yr EEC CIT

Free site-match audit
EEC · Chonburi · 3,556 ไร่ / 569 ha

🚢 Laem Chabang Industrial Estate (Chonburi)

IEAT-operated · Free Zone + EEC · Free Zone

Adjacent to Thailand's largest container port · complete Toyota/Honda/Isuzu/Ford automotive supply chain + EV transition cluster

Free site-match audit
EEC · Chonburi · 27,500 ไร่ / 4,400 ha

🌆 Amata City Chonburi Industrial Estate

Joint (IEAT × Amata Corp) · Free Zone + EEC · Free Zone

Japan-friendly ecosystem · Japanese desk + Smart City utilities + on-site OSS — production within 6 months of BOI approval

Free site-match audit
EEC · Rayong · 16,250 ไร่ / 2,600 ha

🚗 Amata City Rayong Industrial Estate

Joint (IEAT × Amata) · Free Zone + EEC · Free Zone

Only Thai site with 3 EV gigafactories within the same fence — cell + module + pack co-located

Free site-match audit
EEC · Rayong / Chonburi · 23,000 ไร่ / 3,680 ha (4 phases)

🏗️ WHA Eastern Seaboard Industrial Estate

Joint (IEAT × WHA) · Free Zone + EEC · Free Zone

Built-to-suit factory + green-energy PPA — 90-day move-in. Direct link to EECd hyperscale data centers (AWS, Google, Microsoft).

Free site-match audit
EEC · Chachoengsao · 8,265 ไร่ / 1,322 ha

🛬 Gateway City Industrial Estate (Chachoengsao)

Joint (IEAT × Hemaraj/WHA) · Free Zone + EEC · Free Zone

Closest EEC estate to Suvarnabhumi + Chachoengsao HSR station — 2-hour air-freight turnaround

Free site-match audit
Northern · Lamphun · 1,789 ไร่ / 286 ha

💻 Northern Region Industrial Estate (Lamphun)

IEAT-operated · Free Zone · Free Zone

BOI Tier-2 zone — +3-yr CIT bonus (total 11 yr) + 50% reduction 5 yr · ASEAN semicon back-end hub

Free site-match audit
Southern · Songkhla · 2,068 ไร่ / 331 ha

🌴 Southern Region Industrial Estate (Songkhla)

IEAT-operated · Free Zone · SEZ Songkhla · Free Zone

SEZ Songkhla + Free Zone + on-site Halal certification — OIC export within 7 days

Free site-match audit
Central · Ayutthaya · 12,000 ไร่ / 1,920 ha

🏯 Rojana Industrial Estate (Ayutthaya)

Joint (IEAT × Rojana Industrial Park) · Free Zone · Free Zone

Close to Don Mueang + Bangkok–Chiang Mai HSR · flood-proof infrastructure · 30% lower labor cost than BMR

Free site-match audit
ขอบเขตบริการ · ประเมินเฉพาะเคส

บริการ Thailand Industrial Estates · 12 Priority Sites — เลือกขอบเขตที่ต้องการ

ทีมจะตรวจประเภทงาน เอกสาร ประเทศปลายทาง และความเร่งด่วน ก่อนจัดทำใบเสนอราคาเป็นลายลักษณ์อักษร

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ปรึกษาแพ็กเกจนี้ · 083-249-4999
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ปรึกษาแพ็กเกจนี้ · 083-249-4999

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ปรึกษาแพ็กเกจนี้ · 083-249-4999
เปรียบเทียบ · โปร่งใส

DIY · Agency ทั่วไป · NYC Visa

เปรียบเทียบรูปแบบการจัดการงาน Thailand Industrial Estates · 12 Priority Sites เพื่อช่วยเลือกระดับการดูแลที่เหมาะกับคุณ

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ตรวจด้วยตนเอง
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รายการเอกสาร
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แจ้งเมื่อสถานะเปลี่ยน
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ตรวจชื่อ เลขที่ และชุดเอกสาร
เริ่มต้นกับเรา

พร้อมวางแผน Thailand Industrial Estates · 12 Priority Sites ให้ตรงกับเคสของคุณ

ส่งรายละเอียดเบื้องต้นเพื่อรับรายการเอกสาร กรอบเวลา และใบเสนอราคาก่อนเริ่มงาน

Service Knowledge Base

Work permits, BOI/IEAT privileges, Treaty of Amity and APEC card — practical answers

First-party answers on Thai work authorisation: the standard Department of Employment route, BOI and IEAT channels for skilled experts, US company rights under the Treaty of Amity, and the APEC Business Travel Card for Thai nationals — including which supporting documents must be translated and legalised first. (19+ search topics covered)

Must authorisation be obtained before starting work?

Yes. A foreign national must hold the permit before performing work, and may only do the role, for the employer and at the locations stated in the permit. Trial periods and side assignments outside that scope are not covered. Changes of employer, position or workplace require notification or amendment through the Department of Employment.

Why are Thai work permit applications commonly returned?

The usual reason is that the job title and duties in the application do not match the employer's supporting documents, such as the company affidavit, financial statements and employment contract. Other frequent causes are qualifications claimed without properly certified translations, and applying under a business activity that is not among the objectives registered with the Department of Business Development. Map every document to the same set of facts before filing and confirm the current requirements with the Department of Employment office responsible for the workplace.

How are foreign degrees and experience letters used for a Thai work permit?

They are normally authenticated by the competent authority in the issuing country and by the Royal Thai Embassy there, or by apostille once the Convention enters into force for Thailand on 28 February 2027 where accepted, then translated into Thai and legalised by the Department of Consular Affairs. Experience letters should state the position, exact dates, duties and the issuer's contact details, because verification enquiries do occur. Confirm the document list with the Department of Employment or the receiving office before preparing the file.

Can I start working while the application is pending?

Working before authorisation is granted exposes both the worker and the employer to penalties under the foreigners' working management law. The safe course is to agree a start date conditional on issuance, and to keep the employment contract, the position description and the employer's registration documents consistent with what was filed, since discrepancies between the contract and the filing are a frequent cause of rejection.

What happens if the permit lapses while renewal is pending?

Renewal must be filed before expiry within the period set by the regulations, and the permitted-to-stay end date must be tracked alongside it because the two dates do not always coincide. A lapse can force a restart and affect immigration status. Set calendar reminders several weeks ahead and keep current employer documents ready before the deadline.

What must an employer prepare for a first foreign hire?

Typically current company records — registration certificate, shareholder list, financial statements and tax filings — together with social security registration for employees and an employment contract whose job title and scope match the permit sought. Ratio requirements for Thai employees or minimum registered capital may apply under the rules in force, so the corporate structure should be reviewed before filing begins.

Can I keep my work permit after changing employer?

A work permit is tied to the employer and the described work. Changing employer or the nature of the work requires notification or a fresh authorisation within the timeframe set by the Department of Employment's rules. Working for a new employer before that is completed falls outside the scope of the permission and exposes both employee and employer to penalties.

How do we get exact fees and timelines?

Processing times and official fees vary by application type, receiving office, document completeness and local queues, so fixed figures on a web page would be misleading. Our team quotes case by case after reviewing the actual documents — contact us by phone, LINE or email.
Topics covered
หน่วยงานที่เกี่ยวข้อง: กรมการจัดหางาน (DOE) · สำนักงานคณะกรรมการส่งเสริมการลงทุน (BOI) · การนิคมอุตสาหกรรมแห่งประเทศไทย (กนอ./IEAT) · กรมพัฒนาธุรกิจการค้า (DBD) · สำนักงานตรวจคนเข้าเมือง (ตม.) · กรมการกงสุล กระทรวงการต่างประเทศ
คำค้นหลัก: ขอใบอนุญาตทำงานคนต่างชาติ · work permit thailand requirements · BOI work permit e-Expert · one stop service center visa work permit · IEAT work permit นิคมอุตสาหกรรม · treaty of amity company registration · บัตรเอเปค APEC Business Travel Card
เอกสารที่มักต้องแปล/รับรอง: ปริญญาบัตร/ทรานสคริปต์ · หนังสือรับรองประสบการณ์ทำงาน · ใบอนุญาตประกอบวิชาชีพ · หนังสือรับรองบริษัทต่างประเทศ · หนังสือมอบอำนาจ (Power of Attorney) · ทะเบียนสมรส/สูติบัตรของผู้ติดตาม
Official references

Need your documents reviewed or your case assessed? Ask our team by phone, LINE, or email. We reply within two hours during business hours (Mon–Sat 9:00–18:00 ICT).

Company documents used to support a work permit application
Company documents used to support a work permit application — Service illustration; requirements depend on the document and receiving authority
Service Playbook

Thai work permit — company-side and employee-side documents

Work permits are issued by the Department of Employment and are tied to the employer, position and workplace. Changing job, role or location requires a new filing.

Documents to prepare

  • • Company side: current affidavit, shareholder list, financial statements, social security filings
  • • Employee side: passport, the correct visa category, and the required medical certificate
  • • Degrees and experience letters, legalised at source and translated for Thai use
  • • Employment contract and job description
  • • Workplace map and photographs where requested
  • • Power of attorney for the company's filing agent

Step-by-step process

  1. 1. Check company and role eligibility — Registered capital, Thai-to-foreign staff ratio and reserved occupations are verified first.
  2. 2. Prepare foreign documents — Qualifications and experience letters must be legalised abroad and translated before filing.
  3. 3. File the application — Through the Department of Employment, or a dedicated channel such as the BOI One Stop Service.
  4. 4. Collect and comply — Work only within the stated role and location, and renew before expiry.

Pitfalls and rejection causes

  • • Working outside the stated role or location breaches the permit conditions.
  • • A permit belongs to the employer — it cannot follow you to a new company.
  • • Visa and permit expire on different dates; track both.
  • • Company documents older than the accepted window must be reissued.

Tips from our team

  • • Set reminders at least 45 days before either expiry date.
  • • Maintain a standing company document pack to speed up future filings.
  • • BOI-promoted companies should use the dedicated channel to cut steps.

Prefer not to handle the queues yourself, or worried about a rejection? Send us photos of your documents for a free pre-check. We handle the full chain — obtaining certified copies, translation, certification and submission — and keep you updated at each step. Reach us on LINE, phone or email during business hours.

Route Comparison

Comparing Thai work permit routes

Different employer types use different channels, and each channel pairs with a different visa category.

RouteWhen to useCertifying authorityApprox. durationRejection risk
Standard filing with the Department of EmploymentThe employer is an ordinary Thai company without BOI promotionDepartment of Employment, Ministry of LabourVariable, driven by how complete the employer's file isThai-to-foreign staff ratios and registered capital not meeting thresholds is the common refusal ground
BOI-promoted company channelThe employer holds a promotion certificate and the position is on the approved listBOI together with the Immigration Bureau and Department of EmploymentGenerally faster than the standard route, still variableA position that differs from the approved list requires an amendment first
Conditional or short-term work authorisationShort assignments or job types covered by specific published rulesDepartment of Employment under the notification in forceShorter than a full applicationWorking beyond the authorised scope is an offence even when a permit exists

Timelines above are practical estimates from live casework and can change with each authority's policy; confirm with the receiving authority before booking travel. If you would rather not test routes by trial and error, our advisers can assess which route fits your case.

Advisory Service

We do not just process documents — we advise you through the whole case

Our team has worked on cross-border documents, certified translation and government liaison since 2015. Most rejections we see are not caused by missing paperwork but by choosing the wrong route on day one, so we always start with a case assessment.

Route assessment

We look at your destination, purpose and deadline, then tell you which certification route applies — and which steps you can skip.

Pre-submission review

Name spelling, consistency across documents, document age and translation format are checked before anything reaches a counter.

Timeline planning

We sequence the steps around your appointment or travel date and flag bottlenecks in advance.

Rejection recovery

We read the refusal reasons, identify the underlying cause, and plan a resubmission that answers what the authority asked for.

Rather not learn by trial and error? Send your case details and document photos for a review — reach us on LINE, phone or email during business hours.

Practical Q&A

Practical questions · Near me / DIY / Required documents

Is there a service point near me?

Our only office is at Ladprao 95, Wang Thonglang, Bangkok. Clients elsewhere can send scans through LINE @nycvisa for an initial scope review, then agree how to provide originals if required. Contact us before visiting or sending documents.

Can I handle this myself?

Many steps can be done personally under the relevant authority's rules. What usually costs time is the wrong sequence, a translation format that does not match the requirement, or a source document version the recipient will not accept. Check the destination checklist before starting and ask us if anything is unclear.

Which documents should I prepare?

Generally the original document from the competent authority, the owner's ID or passport, a translation in the format the destination requires, and a power of attorney if someone acts for you. Details vary by service type — ask our team for a case-specific checklist.
Practical advice & cautions

Business licensing and BOI: advice and cautions

Before you start
  • Check whether your activity sits on a restricted list

    The Foreign Business Act B.E. 2542 groups activities into Lists 1–3 with different conditions. Define the real activity first, then pick the route: licence, certificate, treaty right, or a BOI promotion certificate.

  • Consider BOI when your activity is an eligible promoted activity

    A promotion certificate carries incentives and shareholding conditions that differ from an ordinary company. Compare minimum investment, technology and employment conditions per activity before committing.

  • Draft company objectives to cover, but not exceed, what you need

    Objectives registered with the Department of Business Development must cover the licensed activity. A mismatch forces an amendment of the affidavit first, typically costing weeks.

  • Legalise parent-company documents through the full chain

    Affidavits, financial statements and powers of attorney usually need notarisation abroad, government or embassy authentication, then Thai translation and legalisation by the Legalization Division, Department of Consular Affairs.

Common reasons documents get rejected
  • Signatory names not matching the latest affidavit

    If directors change mid-process, the affidavit and power of attorney must be updated to match, otherwise the application is rejected at intake.

  • Using nominee Thai shareholders

    Holding shares on behalf of a foreigner without genuine investment breaches the Foreign Business Act, and the source of Thai shareholders' funds can be examined. We do not assist with such structures.

  • Assuming a BOI certificate covers every activity

    Incentives attach only to the promoted activity and its stated conditions. Revenue from non-promoted activities must be accounted for separately and taxed normally.

  • Ignoring post-approval reporting duties

    Most licences require periodic reporting, renewal or notification of changes. Missing these can lead to revocation even when the business operates normally.

Requirements differ by authority and destination country and can change. Confirm current conditions with the receiving authority, or ask our team by phone, LINE or email.

What people search for

Frequently searched topics about BOI and business licensing

Foreign Business Licence
Activities in the schedules to the Foreign Business Act B.E. 2542 require a licence before operating.
Registered capital and Thai staff ratios
Requirements tied to employing foreigners follow the rules in force with the supervising agency at filing time.
Company registration with DBD
Name reservation, memorandum filing and incorporation follow the Department of Business Development's procedure.
BOI promotion privileges
Scope and conditions follow the Board of Investment's announcements for each promoted activity.

These topics reflect the rules and practice of the relevant authorities and can change. Confirm with the receiving authority, or ask our team by phone, LINE or email.

Related services

What clients usually handle next

One document set often moves through several stages — translation, notarial certification, legalization and finally a visa filing. The links below follow that real sequence.

External authority references

Authority requirements change. Verify with the receiving authority before filing, or ask our team by phone, LINE or email.