EB-2 NIW for South Korean Engineers and Researchers

Mapping Korean academic and professional records to USCIS evidence categories

Before collecting anything new, inventory what you already hold and sort it against the evidence categories USCIS petitions typically draw on. Most Korean records fall cleanly into a small number of buckets.

Common Korean credentials and what they support

Checking degree equivalency

A single Korean degree, particularly a 학사 (bachelor's), does not automatically map to a US bachelor's equivalent for petition purposes. Do not assume parity based on program length or institutional reputation alone. Before relying on a degree as "advanced degree" evidence, check the current credential equivalency standards published on uscis.gov, and where an evaluation is warranted, use a credentialing service that issues a formal equivalency opinion rather than asserting equivalency yourself in the petition narrative. Treat this as a verification step done early, since it determines whether supporting documents should be framed as degree proof or as professional experience evidence instead.

Translating and certifying Korean-language documents

Every Korean-language document submitted in support of the I-140 — 재직증명서， 성적증명서， 졸업증명서， letters, employer certificates — must be accompanied by a full English translation that meets the certification standard at 8 CFR 103.2(b)(3). The regulation requires a signed statement from the translator affirming competence to translate from Korean into English and that the translation is complete and accurate. It does not require a licensed or sworn translator, but it does require a named, identifiable person taking responsibility for the content. Avoid having the petitioner sign this certification personally; use a neutral third party — a colleague, a professional translation service, or a notary-adjacent translator — since a self-certified translation invites scrutiny.

Step-by-step for a 재직증명서 or 성적증명서

1. Obtain the original Korean document, ideally with an institutional seal （직인） or signature.
2. Have it translated in full — headers, seals, and stamped text included, not just the body.
3. Attach a certification block at the end or on a cover page: translator's name, statement of competence, statement of accuracy, signature, and date.
4. Scan the original and the translation together as one PDF, original first, translation second.
5. Keep the translator's contact information on file in case USCIS requests it separately.

File naming

Use a consistent scheme across the whole petition, for example:

LASTNAME_Employment_Cert_KR_EN.pdf LASTNAME_Transcript_PhD_KR_EN.pdf

Keep this naming convention identical in the exhibit index described later, so every citation in the petition brief maps directly to a filename without ambiguity.

Documenting employers: Samsung, SK Hynix, LG, Hyundai, and public research institutes (KIST, ETRI, KRISS)

Who issues the letter

At large conglomerates (Samsung Electronics, SK Hynix, LG, Hyundai), the 경력증명서 is issued by the HR department （인사팀）, not by a line manager — request it through the employee or alumni HR portal, or by email if you have separated. At government-funded research institutes (KIST, ETRI, KRISS), both an HR-issued certificate and a letter from your direct supervisor or center director are useful; the supervisor letter can supply project-level detail the HR certificate omits.

What to request

Ask explicitly for these fields in the document:

1. Full legal name matching your passport/ARC
2. Job title in Korean and English
3. Start and end dates (or "to present")
4. Department or research center name
5. Named projects or product lines you worked on
6. A short description of scope of responsibility (not just "researcher")

HR offices often issue a generic template; if so, follow up with a separate project/role letter from a supervisor that fills in the specifics.

Mapping seniority titles

Titles like 수석연구원 (principal researcher) or 책임연구원 (senior/chief researcher) have no direct one-to-one US equivalent. Do not assume the officer knows the hierarchy. Add a short explanatory line — in the letter itself, or in a cover note — stating approximate US-equivalent seniority (e.g., "principal investigator" or "senior staff engineer") and the basis for that mapping, such as years of experience required for promotion to that title or number of reports supervised.

Assembling a publication and patent record from Korean and international sources

Pulling citation metrics

1. Create or update a Google Scholar profile and export the citation table (Citations, h-index, i10-index) as a screenshot or PDF — do this on the same day you compile the exhibit so the numbers are internally consistent.
2. Run the same author search in Web of Science and Scopus. Record each database's citation count separately; they will not match Google Scholar, and that discrepancy is normal, not an error to fix.
3. Save each platform's author/profile page as a dated PDF (print to PDF, not a screenshot crop) so the date of retrieval is visible in the file itself.

Searching patent databases

1. For Korean patents, search KIPRIS (kipris.or.kr) by inventor name (in Korean and in the Romanized form used on your passport) and by applicant/assignee. Export the bibliographic page showing application number, filing date, and status.
2. For international filings, search the USPTO Patent Public Search and WIPO's PATENTSCOPE using the same name variants. Cross-check family members — a single invention often appears as separate KR, US, and PCT filings.
3. Save each patent record as its own PDF, named by publication/application number.

Worksheet table

Build one master table before drafting the petition narrative:

Include this worksheet as an index page immediately before the publication and patent exhibits, so the officer can match each row to its supporting PDF.

Building the recommendation letter set with Korean colleagues and supervisors

Selecting writers

Use two pools: (1) direct supervisors, department heads, or collaborators at your current or former Korean institution who can speak to specific projects, and (2) independent researchers — in Korea or abroad — who know your work through publications, conferences, or collaboration but have no reporting relationship to you. Aim for a mix that covers different vantage points on the same body of work rather than duplicate perspectives from one lab.

Briefing writers without drafting their conclusions

Send each writer a short memo, not a draft letter, containing: your dates of involvement, named projects (Korean and English titles), specific deliverables or methods you contributed, and any metrics (patents filed, systems deployed, funding secured). Ask them to describe what they personally observed. Do not supply concluding sentences for them to sign — a letter that reads as petitioner-written is a known weak point reviewers flag.

Handling Korean-language drafts

If a writer is more comfortable drafting in Korean, have them do so, then route the Korean draft through the same certified-translation process used for other documents: a qualified translator certifies accuracy and competence, the translator is not you, and the English version is paired with the signed Korean original. Letters should be individually signed on letterhead where available.

Notarization

USCIS does not require notarization of recommendation letters by default; check current guidance on uscis.gov before assuming it is needed. If a writer or institution insists on notarizing the Korean original for their own record-keeping, that is acceptable, but it does not substitute for the certified English translation.

File each pair as LASTNAME_RecLetter_[WriterSurname]_KR_EN.pdf.

Currency conversion and salary evidence

Salary figures, grant amounts, and R&D budget allocations cited in Korean documents (payslips, 원천징수영수증 tax withholding statements, grant award letters) need to be presented in USD for an officer who is not going to do currency math independently. Build the conversion into the exhibit itself, not just the cover letter.

Steps

1. Identify the exact date the KRW figure applies to — the pay period end date, the grant disbursement date, or the date printed on the certificate. Avoid using today's date or an average.
2. Look up the historical exchange rate for that specific date from a source you can cite: the Bank of Korea, KEB Hana Bank's published rate archive, or oanda.com's historical rate lookup. Screenshot or print the result showing the date and rate.
3. Calculate the USD equivalent and show the arithmetic: KRW amount ÷ exchange rate = USD amount.
4. Label this clearly on or alongside the original document — a conversion memo attached to the exhibit works well, e.g., "KRW 85,000,000 (annual salary, per 재직증명서 dated 2023-03-15) ÷ 1,312.50 KRW/USD (oanda.com historical rate, 2023-03-15) = USD 64,760."
5. Keep the rate-source printout as its own sub-exhibit or appendix page, cross-referenced by exhibit letter so the officer can trace the figure back to its source without searching.

Common mistakes

• Converting at the filing date instead of the document date.
• Citing an exchange rate source without a retrievable date or page reference.
• Giving only a final USD number with no visible arithmetic or source trail.

Assembling the final exhibit index and petition package

Step 1: Assign exhibit letters in a fixed order

Lay exhibits out in the sequence your argument follows, not the order documents arrived. A workable order: personal/credential documents (degrees, equivalency evaluation) first, then employment and career certificates, then publications/patents, then recommendation letters, then salary and institutional evidence. Label sequentially — Exhibit A, B, C — and never reuse or skip a letter once assigned, since USCIS correspondence will cite them by letter.

Step 2: Build a table of contents tied to evidentiary prongs

Create a one-page table with columns: Exhibit | Document | Korean Original Included (Y/N) | Translation Included (Y/N) | Prong Supported. List the prong in plain terms — e.g., "substantial merit and national importance," "well positioned to advance the endeavor." This table lets an officer locate support for a specific claim without reading the full file.

Step 3: Cross-reference translations to originals

Place each Korean-language original immediately behind its certified English translation, both under the same exhibit letter (e.g., Exhibit D-1 original, D-2 translation). Note the pairing in the table of contents so nothing appears orphaned.

Step 4: Run a final RFE-trigger check

• Every Korean document has a certified translation attached — none submitted untranslated or self-translated.
• Foreign degrees include equivalency documentation per current uscis.gov guidance.
• Job titles such as 수석연구원 or 책임연구원 have an explanatory line mapping seniority.
• Recommendation letters from Korean colleagues are translated and notarized where originally drafted in Korean, not summarized by the petitioner.

Review the full index against this list before assembling the final PDF or paper copy.