The page is the record's research on the issuer — no analyst, no rating, no view.

# J2KBIO Co., Ltd. (KOSDAQ: 420570) — research page

As of 2026-11-06 · kr-cm-kg · record version 1

## Identity and listing

The issuer is J2KBIO Co., Ltd., listed on KOSDAQ under ticker 420570 with ISIN KR7420570004; its LEI is not on the record, as no GLEIF record is registered under 665-86-00626. Its security type is Corporate, its segment is not on the record, its sector is 기타 화학제품 제조업, and its jurisdiction is South Korea as a DART filer with a corporate registration number. Its listing status is listed, not halted.

## The disclosure read

The record holds 17 filings in the twelve months to 2026-11-06, across 10 filing days. The median gap between filing days is 27 days. The latest filing is dated 2026-08-26, a directors_dealings filing, 72 days before the record date. The exchange median is 8.0 days of cadence, 33 filings and 16.0 days of latency across 1819 issuers; the sector median is 8.2 days of cadence, 34 filings and 14.0 days of latency across 103 issuers.

## Auditor

The auditor of record is 한울회계법인, with location not on the record. Auditor changes are not on the record, as the market's record does not carry them.

## Events and halts

Listing, delisting, name change, domicile change and segment move are not on the record, as no lifecycle type map exists for this register yet. The halt flag is listed, not halted.

## Orderability

The outcome is not determinable, as the chapter's orderability section carries no client_categories and so cannot name its client category. The rule version is acm-68000/kr/suitability-and-appropriateness-fscma-articles-46-and-46-2/r1, with the chapter as of 2026-11-04.

## Coverage

No research houses were found on the issuer's own investor-relations page among the pages read, so the count is 0.

## Open research

No openly published research notes were found on the record, so the count is 0.

## Licensed

Licensed research: none loaded. A licensed row is served only to an agent whose firm holds that licence (licensor, entitlement). No licensed row is loaded.

## As-of depth

The market's vintage is not sealed, and no issuer years are sealed. The live record began on 2026-09-12. Years 2021 through 2026 are sealed in the store but not served as of a date, and the as-of door answers not_sealed.

## Sources

8 source pages are named on this page; every value above carries its own source page and read date in the numbers.

- https://kind.krx.co.kr/corpgeneral/corpList.do?method=download&searchType=13 (identity.exchange)
- https://data.krx.co.kr/comm/bldAttendant/getJsonData.cmd (identity.isin)
- https://opendart.fss.or.kr/api/company.json?corp_code=01553129 (identity.jurisdiction)
- https://mcp.kr-cm-kg.ai/events/KOSDAQ/420570 (the disclosure lines)
- https://kind.krx.co.kr/investwarn/tradinghaltissue.do?method=searchTradingHaltIssueMain (the halt flag)
- https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260319000464 (the auditor)
- https://mcp.kr-cm-kg.ai/book/aio.json (the orderability chapter)
- https://mcp.kr-cm-kg.ai/record/KOSDAQ/420570 (the record)

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