Transfer industrial or engineering technology to a Korean company as a foreign specialist.
Written by James Chae — Co-Founder, Expert Sapiens
Platform expertise: Immigration consulting & visa services · Reviewed July 2026
Reviewed against
James Chae, 행정사 (Korean Licensed Administrative Attorney). License No. 220-06-06463 · 대한행정사회 (Korean Administrative Agents Association). Reviewed against the HiKorea 사증·체류업무 자격별 안내 매뉴얼 and cross-checked with Ministry of Justice issuances.
Last reviewed
July 14, 2026
Source references
Filing caution
Requirements can change by nationality, local immigration office, and filing channel. Confirm exact requirements with HiKorea, the responsible Korean consulate, or a licensed immigration specialist before filing.
Stay Duration
Up to 2 years (renewable based on contract)
Processing
2–4 weeks
Visa Fee
$74.63 (status change) / $44.78 (extension)
Fees and processing times sourced from HiKorea & Ministry of Justice. Figures are updated periodically but may change — verify before submitting.
Readiness check
Use this quick self-check before you spend time on forms or book a consultation for Technology Transfer Visa.
Next focus
Eligibility fit
I meet the core E-4 requirements and understand any sponsor, degree, income, family, or experience conditions that apply.
The E-4 visa is issued to foreign nationals who possess specialized industrial or engineering technology and are contracted to transfer that knowledge to a Korean company. Unlike the E-7 (which covers a broad range of skilled jobs), the E-4 is specifically for technology transfer engagements — typically short- to medium-term consulting or training contracts rather than ongoing employment.
Highly specialized foreign engineers, technicians, or industrial consultants who have been contracted by a Korean company to transfer proprietary manufacturing processes, industrial equipment know-how, or specialized engineering techniques. Common in the automotive, semiconductor, shipbuilding, and heavy manufacturing sectors.
Contract with a Korean company for technology transfer services
Demonstrable expertise in the relevant technology or industrial process
Bachelor's degree in engineering or a related technical field, OR recognized specialist certification, OR extensive professional experience
No criminal record
Approval from the relevant Korean government ministry may be required depending on the technology sector
Delay and refusal risks
Work-visa delays usually come from job-scope mismatch, sponsor weakness, salary issues, or unauthorized activity.
Korean work visas are activity-specific. A broad title or informal role description is weaker than a contract and duties that match the status precisely.
Manual basis: The manuals organize work statuses by permitted activity and sponsor/occupation requirements.
Business registration, tax, employment, wage, or compliance problems at the sponsor can affect the applicant's review.
Manual basis: Work-status manuals repeatedly include employer documents, hiring restrictions, and sponsor review.
Prior overstays, fines, unauthorized work, tax delinquency, or criminal history can trigger closer review even when the basic visa category looks correct.
Manual basis: The stay manuals repeatedly reference status restrictions, law-violation review, criminal-record checks, tax/payment issues, and status-change limits.
Source note
These are practical risk factors for Technology Transfer Visa, not a complete list of legal refusal grounds. Final review can vary by nationality, filing channel, consulate, immigration office, and case facts.
Valid passport + completed visa application form + passport photo
Technology transfer or service contract with the Korean company
Technology Import Contract Notification Approval (기술도입계약신고수리서) — required when transferring proprietary industrial technology to a Korean entity
Dispatch order (파견명령서) or employment certificate (재직증명서) from the overseas company
Evidence of specialized expertise (degree certificates, professional licenses, employment history)
Company's business registration documents (사업자등록증)
Criminal background check (apostilled, issued within 3 months)
Execute a technology transfer contract
Negotiate and sign a formal technology transfer or technical consulting agreement with the Korean company. The contract should detail the technology, duration, and compensation.
Gather supporting documentation
Compile proof of your expertise — degrees, certifications, employment history, patents, or reference letters from previous technology transfer engagements.
Apply at the Korean consulate
Submit your visa application with all documents at the Korean embassy or consulate. Processing typically takes 2–4 weeks.
Fulfill the contract and register
Upon arrival, register at the immigration office within 90 days and begin your technology transfer engagement.
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Visa Process
Alien Registration Card (ARC)
The Alien Registration Card (ARC) is the official ID card issued to foreigners staying in South Korea for 91 days or longer. It is required to open a bank account, sign a phone contract, and access most public services.
Visa Process
HiKorea
How to use HiKorea (www.hikorea.go.kr) — Korea's official immigration portal for visa extensions, status changes, and ARC renewal. Processing time: 3-10 business days.
Visa Process
Visa Extension (Stay Period Extension)
A visa extension — officially called a 'stay period extension' (체류기간 연장) in Korean immigration law — allows a foreigner to legally remain in Korea beyond the expiry date on their current visa or ARC without leaving the country.
Visa Process
Status of Sojourn Change (체류자격 변경)
A status of sojourn change allows a foreigner already in South Korea to switch from one visa category to another without leaving the country — for example, from a D-2 student visa to an E-7 skilled worker visa upon graduation and employment.
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