D-3 Industrial Trainee Visa Korea — Technical Training, Eligibility & Sponsorship Rules
The D-3 (기술연수) visa allows foreign nationals to receive industrial and technical training at Korean manufacturing companies. Unlike E-9 (the employment visa for non-professional workers), D-3 is a training visa — the legal framework positions the trainee as learning Korean production methods to later apply at their home-country employer.
Written by James Chae — Co-Founder, Expert Sapiens
Platform expertise: Immigration consulting & visa services · Reviewed July 2026
Review & source basis
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.
Who qualifies and what is D-3 used for?
D-3 is used for two main scenarios:
1. Corporate group training (계열사 연수): A foreign employee of an overseas subsidiary or affiliate of a Korean conglomerate comes to the Korean parent company for technical skills training. Common in Samsung, Hyundai, LG, and similar groups with overseas manufacturing operations.
2. ODA/KOICA technical cooperation training: Foreign nationals from developing countries sponsored under Korea's ODA programs receive industrial training at Korean companies.
The D-3 framework requires: • A Korean company approved as a training institution (연수기관) • A formal training plan (연수계획서) • The trainee must have a genuine connection to an overseas entity • The training must be time-limited and oriented toward skills transfer back to the home country
Stay duration, conditions, and D-3 vs E-9
Duration: D-3 is issued for up to 1 year, renewable up to a total of 2 years.
Conditions: D-3 trainees receive a training allowance (연수수당), not a salary. They do not have full employment law protections and cannot freely change companies.
| D-3 Industrial Trainee | E-9 Non-Professional Employment | |
|---|---|---|
| Legal status | Training (연수) | Employment (취업) |
| Labor protections | Partial | Full |
| Entry route | Corporate/ODA program | EPS System |
| Nationality | Any (qualifying program) | 16 EPS countries |
| Duration | Up to 2 years | 3 years (extendable) |
For most foreign workers doing production work in Korea, E-9 through the EPS system provides better legal protections. D-3 is specifically for genuine industrial knowledge transfer.
Tips from 행정사s
D-3 applicants almost never self-apply — the corporate group or ODA program handles sponsorship.
D-3 trainees who experience workplace abuse or wage violations should contact the Ministry of Employment and Labor (1350).
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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.
Frequently asked questions
Can a D-3 trainee convert to E-7 in-country?
Converting from D-3 to E-7 is possible if the trainee has acquired qualifications meeting E-7 standards and has a confirmed job offer. Consult an 행정사 for your specific situation.