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Short Description: A detailed guide to South Korea\u2019s D-9-2 Technician Visa for industrial machinery work, covering eligibility, documents, process, limits, dependents, renewal, and risks.<\/p>\n\n\n\n
Last Verified On: 2026-04-07<\/p>\n\n\n\n
| Item<\/th>\n | Details<\/th>\n<\/tr>\n<\/thead>\n | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Country<\/td>\n | South Korea<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Visa name<\/td>\n | Technician Visa – Industrial Machinery<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Visa short name<\/td>\n | D-9-2<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Category<\/td>\n | Long-stay work visa \/ status of stay for technical industrial activity<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Main purpose<\/td>\n | Technical work related to industrial machinery under South Korea\u2019s stay-status system<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Typical applicant<\/td>\n | Foreign technical specialists assigned to install, repair, maintain, supervise, or provide technical services relating to industrial machinery<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Validity<\/td>\n | Varies by issuance and immigration decision<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Stay duration<\/td>\n | Varies by approval, contract, and immigration discretion<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Entries allowed<\/td>\n | Single or multiple entry may vary by issued visa and residence status<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Extension possible?<\/td>\n | Yes, potentially, if the underlying activity and eligibility continue; case-specific<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Work allowed?<\/td>\n | Yes, but only within the authorized D-9-2 activity and approved sponsoring arrangement<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Study allowed?<\/td>\n | Limited; incidental study may be possible, but this is not a study visa<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Family allowed?<\/td>\n | Possible in some cases through dependent status, subject to separate eligibility and approval<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| PR path?<\/td>\n | Possible indirectly, depending on long-term lawful residence and later qualification under other residence pathways<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Citizenship path?<\/td>\n | Indirect; this visa alone does not grant citizenship, but lawful residence may count depending on later status and naturalization rules<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/figure>\n\n\n\n South Korea\u2019s D-9-2<\/strong> is a technical long-stay work status<\/strong> generally used for foreign nationals coming to Korea for industrial machinery-related technical services<\/strong>.<\/p>\n\n\n\n In practical terms, this category is used where a foreign technician is entering South Korea to do work such as:<\/p>\n\n\n\n This visa exists because Korea distinguishes between:<\/p>\n\n\n\n The D-9 line is commonly grouped within business\/trade\/technical activity categories, and D-9-2 is specifically associated with technical work in industrial machinery<\/strong> rather than tourism, general labor, or academic study.<\/p>\n\n\n\n South Korea uses a status of stay<\/strong> system. In practice, applicants may deal with:<\/p>\n\n\n\n So this route is best understood as a work-authorized long-stay visa\/status category<\/strong> rather than a simple visitor visa.<\/p>\n\n\n\n Public English-language naming for subcategories can vary across official sources. You may see references to:<\/p>\n\n\n\n For this guide, the target route is the subcategory commonly referred to as:<\/p>\n\n\n\n Warning: South Korean visa naming on embassy pages, Hi Korea, and K-ETA\/visa portals is not always perfectly harmonized in English. Subcategory labels may appear differently by office, language version, or internal code system.<\/p>\n<\/blockquote>\n\n\n\n This visa is generally appropriate for:<\/p>\n\n\n\n Do not<\/strong> use D-9-2 for sightseeing. Consider:\n– visa waiver, if eligible\n– C-3 visitor route, if required<\/p>\n\n\n\n If your trip is only for:\n– meetings\n– negotiations\n– market research\n– conference attendance If you are looking for jobs in Korea without an approved technical assignment, D-9-2 is generally not the correct route.<\/p>\n\n\n\n For degree study or language study, use the relevant D-2<\/strong> or D-4<\/strong> route.<\/p>\n\n\n\n Dependents should not apply under D-9-2 unless they independently qualify for technical activity. They typically need a dependent\/family status.<\/p>\n\n\n\n Remote work from Korea for a foreign employer does not automatically fit D-9-2. Korea has separate frameworks and evolving rules for remote work and digital nomad activity.<\/p>\n\n\n\n Use the proper religion-related category.<\/p>\n\n\n\n Use the relevant performance or arts\/sports route.<\/p>\n\n\n\n Use a visitor\/medical route if coming primarily for treatment.<\/p>\n\n\n\n Use diplomatic or official categories, not D-9-2.<\/p>\n\n\n\n You should likely not<\/strong> use D-9-2 if you are:<\/p>\n\n\n\n Based on the category\u2019s technical function, D-9-2 is generally used for:<\/p>\n\n\n\n Unless specifically approved under this category, it is generally not<\/strong> for:<\/p>\n\n\n\n A common confusion is whether a person can enter as a short-term business visitor for machinery-related work. If you are only discussing<\/strong> machinery or contracts, a short-term business route may be enough. If you will physically install, repair, test, or technically supervise machinery<\/strong>, a technical\/work-authorized route like D-9-2 may be required.<\/p>\n\n\n\n South Korea\u2019s rules are purpose-based. If your actual stay purpose is technical machinery work in Korea, you should not try to use a visitor framework by calling it \u201cremote work.\u201d<\/p>\n\n\n\n If you are coming to provide equipment-specific technical training<\/strong> as part of installation or after-sales obligations, D-9-2 may fit. If you are coming to receive education<\/strong> as a student, it likely does not.<\/p>\n\n\n\n The broad official family is generally the D-series long-term stay categories<\/strong> under the Korean immigration system.<\/p>\n\n\n\n Public-facing official English sources do not always fully spell out all sub-stream logic for D-9 online. Some systems show only:\n– D-9\nwhile others recognize finer subcodes such as:\n– D-9-1\n– D-9-2\n– D-9-3<\/p>\n\n\n\n Warning: Exact sub-stream naming can differ between embassy forms, Visa Portal interfaces, and immigration internal coding.<\/p>\n<\/blockquote>\n\n\n\n Depending on process, applicants may encounter:\n– visa issuance confirmation\n– visa application\n– status of stay\n– alien registration \/ residence card process after arrival<\/p>\n\n\n\n Because detailed public English guidance on D-9-2 can be fragmented, the safest approach is to separate what is generally required under official practice<\/strong> from what may vary by post.<\/p>\n\n\n\n A typical D-9-2 applicant usually needs:<\/p>\n\n\n\n No universal nationality bar is publicly stated for this category in broad form, but:<\/p>\n\n\n\n Applicants generally need a passport valid long enough for visa issuance and travel. Some posts may expect:\n– at least 6 months validity\n– sufficient blank pages<\/p>\n\n\n\n If the embassy has a stricter local rule, follow that.<\/p>\n\n\n\n No standard public age threshold specific to D-9-2 is commonly stated. Applicants must be legally capable of holding the status and performing the role.<\/p>\n\n\n\n This visa is technical in nature, so officers may expect evidence such as:<\/p>\n\n\n\n No single universally published degree rule was clearly found across all official sources for this subcategory, so this can be case-specific<\/strong>.<\/p>\n\n\n\n No general Korean language requirement is publicly established for D-9-2. English or bilingual company documentation is often used, but local offices may require Korean translations of supporting materials.<\/p>\n\n\n\n This is often central. The applicant may need:<\/p>\n\n\n\n Not always a \u201cjob offer\u201d in the ordinary employment sense. It can instead be:<\/p>\n\n\n\n Not applicable for this visa.<\/p>\n\n\n\n Only relevant if dependents apply separately.<\/p>\n\n\n\n Not applicable unless some training institution component is involved, which is unusual for this route.<\/p>\n\n\n\n Generally not the core requirement for D-9-2 itself.<\/p>\n\n\n\n Official public guidance does not consistently publish a fixed minimum personal fund threshold for D-9-2. Officers may still want to see that the applicant can support the trip or that the employer covers costs.<\/p>\n\n\n\n May be requested depending on embassy\/post.<\/p>\n\n\n\n Some posts may request flight reservation or itinerary; not always decisive for long-stay work categories.<\/p>\n\n\n\n Applicants must generally be admissible under Korean immigration law. Some long-stay categories may trigger health checks or later health compliance requirements.<\/p>\n\n\n\n A criminal history can affect approval. Some posts may request police certificates; others may not unless triggered.<\/p>\n\n\n\n Not always a pre-visa universal requirement publicly listed for D-9-2, but health insurance obligations can arise after residence in Korea.<\/p>\n\n\n\n Requirement varies by post and processing channel.<\/p>\n\n\n\n Applicants must show:<\/p>\n\n\n\n Korea does not frame all visa categories through a classic \u201cstrong home ties\u201d model in the same way some countries do, but officers still evaluate whether the applicant\u2019s intended stay matches the requested category.<\/p>\n\n\n\n Long-stay foreign residents generally must complete post-arrival foreigner registration within the required period.<\/p>\n\n\n\n No public lottery or point-ballot system is generally associated with D-9-2.<\/p>\n\n\n\n These are very important. Some embassies\/consulates may ask for:<\/p>\n\n\n\n You may be refused if:<\/p>\n\n\n\n A major issue for this route. If your work fits:\n– intra-company transfer\n– investment\n– ordinary employment\n– short-term business Possible in some cases, but not automatic. Dependents usually need separate status approval.<\/p>\n\n\n\n If multiple entry is granted or if residence status is maintained with valid re-entry conditions, travel may be easier during the authorized stay.<\/p>\n\n\n\n Not a direct PR visa, but time in lawful status may matter later depending on subsequent immigration pathway.<\/p>\n\n\n\n Long-stay foreign nationals often must:<\/p>\n\n\n\n This is one of the most variable parts of D-9-2.<\/p>\n\n\n\n The following can differ by case:<\/p>\n\n\n\n The approved stay usually reflects:<\/p>\n\n\n\n As with many Korean visas:<\/p>\n\n\n\n Usually, the authorized stay period starts from entry into Korea, not from visa issue date, but always check the visa label or official notice.<\/p>\n\n\n\n Do not assume a grace period exists. Overstay is a violation.<\/p>\n\n\n\n Possible consequences include:<\/p>\n\n\n\n Apply for extension before current status expires<\/strong> through the competent immigration office or approved online process where available.<\/p>\n\n\n\n Warning: Exact documents vary by embassy\/consulate, nationality, and whether a visa issuance confirmation is used. Always verify with the Korean mission handling your case.<\/p>\n<\/blockquote>\n\n\n\n May include:<\/p>\n\n\n\n Why needed:\n– to show trip\/residence support\n– to reduce risk of unauthorized work or abandonment<\/p>\n\n\n\n Common mistakes:\n– unexplained large deposits\n– statements without account holder name\n– screenshots instead of official bank statements<\/p>\n\n\n\n This is often the most important section for D-9-2.<\/p>\n\n\n\n Possible documents:<\/p>\n\n\n\n Why needed:\n– to prove the work is real\n– to show why the foreign technician is needed\n– to establish the Korean-side legal basis<\/p>\n\n\n\n Common mistakes:\n– contract does not mention technical service\n– applicant name not tied clearly to project\n– mismatch between employer and inviter\n– no project timeline\n– no machinery details<\/p>\n\n\n\n May include:\n– diplomas\n– technical certificates\n– training records\n– engineer licenses\n– resume\/CV<\/p>\n\n\n\n Why needed:\n– to show capacity to perform technical machinery work<\/p>\n\n\n\n Only if applying with dependents or later sponsoring family:<\/p>\n\n\n\n May include:\n– accommodation booking\n– employer housing letter\n– project site accommodation arrangement\n– flight reservation\/itinerary if requested<\/p>\n\n\n\n Commonly important:<\/p>\n\n\n\n May include:\n– medical certificate, if specifically requested\n– TB check or health exam in later stages if required\n– proof of insurance, if post requires it<\/p>\n\n\n\n Some embassies may request:<\/p>\n\n\n\n If dependents apply:<\/p>\n\n\n\n This varies heavily.<\/p>\n\n\n\n General rule:\n– documents not in Korean or English may need translation\n– some civil or corporate documents may need notarization\/apostille\/legalization\n– some posts accept copies; others demand originals or notarized copies<\/p>\n\n\n\n Common Mistake: Assuming one embassy\u2019s checklist applies worldwide. Korean missions often have local procedural differences.<\/p>\n<\/blockquote>\n\n\n\n Use the photo specification required by the mission or portal handling your case. Typical issues include:<\/p>\n\n\n\n For D-9-2, a single universal publicly published minimum fund figure is not consistently stated<\/strong> across official English sources.<\/p>\n\n\n\n Who may cover costs:\n– overseas employer\n– Korean inviting company\n– in some cases, both jointly<\/p>\n\n\n\n No single public D-9-2 salary threshold was clearly stated in official English guidance reviewed. Case officers may still consider whether remuneration arrangements are credible.<\/p>\n\n\n\n No universally published amount for dependents specific to this subcategory was clearly stated in official English materials. Expect scrutiny to rise if dependents accompany you.<\/p>\n\n\n\n Applicants often overlook:\n– translations\n– apostilles\/legalization\n– courier fees\n– local travel to embassy\n– immigration office fees after arrival\n– residence card issuance costs\n– health exam costs if triggered<\/p>\n\n\n\n Official-rule side:\n– submit formal statements or support letters<\/p>\n\n\n\n Practical side:\n– explain any unusual deposits\n– align support evidence with contract terms\n– avoid submitting random financial records without explanation<\/p>\n\n\n\n Fees for Korean visas often vary by:<\/p>\n\n\n\n Check the latest official fee page for your mission or the Korea Visa Portal\/mission page. Fees change and reciprocity can differ.<\/p>\n\n\n\n Warning: Do not rely on old screenshots or unofficial blogs for Korean visa fees.<\/p>\n<\/blockquote>\n\n\n\n First confirm that your work is truly:\n– industrial machinery technical activity\n– not short-term business only\n– not general employment or transfer under another category<\/p>\n\n\n\n Collect:\n– passport\n– form and photo\n– sponsor\/invitation package\n– assignment and technical documents\n– corporate records\n– financial support documents<\/p>\n\n\n\n Use the official Korean visa form or online procedure where available.<\/p>\n\n\n\n Pay according to mission instructions.<\/p>\n\n\n\n Some missions require appointments. Some may require interviews.<\/p>\n\n\n\n This may be:\n– directly to embassy\/consulate\n– through an official visa application center\n– through a visa issuance confirmation workflow involving the Korean-side sponsor<\/p>\n\n\n\n Follow post-specific rules for originals, scans, translation, and legalization.<\/p>\n\n\n\n Examples:\n– police certificate\n– medical documents\n– additional corporate proof\n– revised invitation letter<\/p>\n\n\n\n Use the official Korea Visa Portal or mission instructions if tracking is available.<\/p>\n\n\n\n If immigration or consulate asks for more documents, respond clearly and fully.<\/p>\n\n\n\n You may receive:\n– visa issuance\n– request for additional documents\n– refusal<\/p>\n\n\n\n Check:\n– name spelling\n– passport number\n– visa type\n– validity\n– number of entries\n– period of stay<\/p>\n\n\n\n Carry key supporting documents in hand luggage.<\/p>\n\n\n\n Immigration may ask about:\n– employer\/sponsor\n– worksite\n– stay address\n– return\/next plans<\/p>\n\n\n\n If staying long-term, complete foreigner registration within the legal deadline.<\/p>\n\n\n\n Processing times vary significantly by:<\/p>\n\n\n\n No single global standard for D-9-2 should be assumed.<\/p>\n\n\n\n Priority processing is not universally available. If the mission offers an expedited route, it will be on official instructions.<\/p>\n\n\n\n Technical long-stay visas often take longer than simple visitor visas. Apply early enough to allow for document corrections.<\/p>\n\n\n\n May be required depending on:\n– application location\n– nationality\n– current consular procedures<\/p>\n\n\n\n Not every applicant is interviewed, but interviews may occur if:<\/p>\n\n\n\n No universally published D-9-2 pre-visa medical rule is consistently stated across all posts, but health checks can arise:\n– by post-specific rule\n– for long-term stay administration\n– for later registration or sector-specific work<\/p>\n\n\n\n Not always standard for every applicant, but may be requested depending on post or case.<\/p>\n\n\n\n These vary by nationality and post.<\/p>\n\n\n\n Public official approval-rate data specifically for D-9-2<\/strong> is not readily published in a simple applicant-facing format.<\/p>\n\n\n\n From official document logic, common refusal themes include:<\/p>\n\n\n\n No reliable official percentage should be assumed.<\/p>\n\n\n\n Include a short project summary:\n– machinery type\n– location\n– Korean customer\/company\n– exact technical tasks\n– project dates\n– why your technical presence is required<\/p>\n\n\n\n The reviewer should be able to see:\n1. who you are\n2. who employs you\n3. who invited you\n4. what machinery is involved\n5. what technical task you will perform\n6. how long it will take\n7. who pays\/supports you<\/p>\n\n\n\n A simple cover page and tabbed PDF set can materially help review.<\/p>\n\n\n\n If there was:\n– a late project change\n– a name difference\n– large bank deposit\n– unusual travel history Use the exact legal name of the:\n– overseas employer\n– Korean inviter\n– project site operator<\/p>\n\n\n\n Poor translations cause avoidable refusals or delays.<\/p>\n\n\n\n Do not wait until the project start date is near.<\/p>\n\n\n\n Include:\n– invitation letter\n– dispatch letter\n– contract summary\n– machinery description\n– project schedule\n– your technical CV<\/p>\n\n\n\n This makes the case easy to understand.<\/p>\n\n\n\n Even if your contract is technical, attach a one-page explanation:\n– machine name\/model\n– installation site\n– service needed\n– expected completion date<\/p>\n\n\n\n If your employer recently transferred travel funds, label them clearly in a short note.<\/p>\n\n\n\n Your:\n– invitation letter\n– assignment letter\n– contract\n– itinerary\n– accommodation dates Embassy checklists often list minimum items, not always the best-presented file. Add a one-page index for clarity.<\/p>\n\n\n\n If your project is short, dependents may not be practical. If it is long-term and stable, prepare family proof and financial support evidence early.<\/p>\n\n\n\n Contact the mission when:\n– a listed rule is unclear\n– the portal has a technical issue\n– an urgent travel document problem exists<\/p>\n\n\n\n Avoid sending repeated status emails during normal processing time.<\/p>\n\n\n\n Attach the refusal and explain what changed.<\/p>\n\n\n\n A cover letter is not always mandatory, but for D-9-2 it is often very useful.<\/p>\n\n\n\n Professional, factual, short.<\/p>\n\n\n\n Usually one or more of:\n– Korean company receiving the technical service\n– overseas employer dispatching the technician\n– machinery supplier\/manufacturer connected to the project<\/p>\n\n\n\n A good invitation letter should state:<\/p>\n\n\n\n Often includes:\n– business registration certificate\n– contract or service order\n– corporate seal\/signature where customary\n– ID of signatory if requested\n– proof of relationship with overseas company<\/p>\n\n\n\n Possibly, but this depends on:\n– length\/stability of the principal\u2019s stay\n– immigration discretion\n– whether the principal holds a residence-qualifying status long enough to support family stay<\/p>\n\n\n\n In many cases, dependents would apply separately under a family\/dependent status rather than under D-9-2 itself.<\/p>\n\n\n\n Typically:\n– legally married spouse\n– minor unmarried children<\/p>\n\n\n\n Unmarried partners may not be treated the same as married spouses under Korean immigration rules.<\/p>\n\n\n\n Dependents do not<\/strong> automatically get unrestricted work rights. Separate permission may be required.<\/p>\n\n\n\n Children may usually study subject to local rules and school admission.<\/p>\n\n\n\n If one parent is absent:\n– consent letter may be needed\n– custody order may be needed in divorce\/separation cases<\/p>\n\n\n\n |