The page is the record's research on the issuer — no analyst, no rating, no view. # SD system Co., Ltd (KOSDAQ: 121890) — research page As of 2026-11-06 · kr-cm-kg · record version 1 ## Identity and listing The issuer is SD system Co., Ltd, listed on KOSDAQ under ticker 121890, ISIN KR7121890008. The LEI is not on the record, as no GLEIF record is registered under 129-81-42052. The security type is Corporate, the segment is not on the record, the sector is 전자부품 제조업, and the jurisdiction is South Korea (DART filer with a corporate registration number). The listing status is listed, not halted. ## The disclosure read The record holds 24 filings in the twelve months to 2026-11-06, across 18 filing days. Of these, 9 are agm_egm, 7 are corporate_news, 6 are results, 1 is directors_dealings and 1 is regulatory_filing. The median gap between filing days is 8 days. The latest filing is dated 2026-08-13 and is of type results, 85 days before the record date. The KOSDAQ median is 33 filings, a median cadence gap of 8.0 days and a median latency of 16.0 days across 1,819 issuers. The 전자부품 제조업 median is 39.0 filings, a median cadence gap of 8.0 days and a median latency of 10.0 days across 136 issuers. ## Auditor The auditor of record is 선진회계법인. Its location is not on the record. Auditor changes are not on the record, as this market's register carries no lifecycle type map yet. ## Events and halts Delisting, domicile change, listing, name change and segment move are not on the record, as this register carries no lifecycle type map yet. The halt flag is listed, not halted. ## Orderability The outcome is not determinable. The chapter's orderability section carries no client_categories, so the outcome cannot name its client category. The rule version is acm-68000/kr/suitability-and-appropriateness-fscma-articles-46-and-46-2/r1, and the chapter as-of date is 2026-11-04. ## Coverage No research houses were found on the issuer's own investor-relations page. The count is 0. ## Open research No openly published research notes were found. 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 issuer's years are not sealed. The market's vintage is not sealed, and the market earliest sealed date is not on the record. The live record began 2026-09-12. The years 2021, 2022, 2023, 2024, 2025 and 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=00604815 (identity.jurisdiction) - https://mcp.kr-cm-kg.ai/events/KOSDAQ/121890 (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=20260318000689 (the auditor) - https://mcp.kr-cm-kg.ai/book/aio.json (the orderability chapter) - https://mcp.kr-cm-kg.ai/record/KOSDAQ/121890 (the record) --- Allooloo Technologies Corp. · https://getresearch.ai/kr/KOSDAQ/121890 · public-record only · the same page signed and receipted: get_research at https://mcp.getresearch.ai/mcp