{
 "as_of": "2026-11-06",
 "cmr": "kr-cm-kg/KOSDAQ/121890",
 "fence": "The page is the record's research on the issuer — no analyst, no rating, no view.",
 "markdown": "The page is the record's research on the issuer — no analyst, no rating, no view.\n\n# SD system  Co., Ltd (KOSDAQ: 121890) — research page\n\nAs of 2026-11-06 · kr-cm-kg · record version 1\n\n## Identity and listing\n\nThe 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.\n\n## The disclosure read\n\nThe 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.\n\n## Auditor\n\nThe 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.\n\n## Events and halts\n\nDelisting, 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.\n\n## Orderability\n\nThe 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.\n\n## Coverage\n\nNo research houses were found on the issuer's own investor-relations page. The count is 0.\n\n## Open research\n\nNo openly published research notes were found. The count is 0.\n\n## Licensed\n\nLicensed research: none loaded. A licensed row is served only to an agent whose firm holds that licence (licensor, entitlement). No licensed row is loaded.\n\n## As-of depth\n\nThe 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.\n\n## Sources\n\n8 source pages are named on this page; every value above carries its own source page and read date in the numbers.\n\n- https://kind.krx.co.kr/corpgeneral/corpList.do?method=download&searchType=13 (identity.exchange)\n- https://data.krx.co.kr/comm/bldAttendant/getJsonData.cmd (identity.isin)\n- https://opendart.fss.or.kr/api/company.json?corp_code=00604815 (identity.jurisdiction)\n- https://mcp.kr-cm-kg.ai/events/KOSDAQ/121890 (the disclosure lines)\n- https://kind.krx.co.kr/investwarn/tradinghaltissue.do?method=searchTradingHaltIssueMain (the halt flag)\n- https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260318000689 (the auditor)\n- https://mcp.kr-cm-kg.ai/book/aio.json (the orderability chapter)\n- https://mcp.kr-cm-kg.ai/record/KOSDAQ/121890 (the record)\n",
 "market": "KR",
 "node": "kr-cm-kg",
 "numbers": {
  "as_of_depth": {
   "issuer_years_sealed": [],
   "live_record_began": "2026-09-12",
   "node_history_from": null,
   "node_years_sealed": [],
   "note": "6 years are sealed in the KR store; their Replay split is not built, so the as-of door answers not_sealed and the record is the live record as of 2026-11-06",
   "record_version": 1,
   "sealed": false,
   "store_years_sealed_not_served": [
    "2021",
    "2022",
    "2023",
    "2024",
    "2025",
    "2026"
   ]
  },
  "auditor": {
   "auditor": {
    "read_by": "DART API 회계감사인의 명칭 및 감사의견 (annual report 11011, business year 2025)",
    "read_date": "2026-11-06",
    "read_date_basis": "the record version as_of",
    "source": "https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260318000689",
    "state": "sourced",
    "value": "선진회계법인"
   },
   "auditor_firm_id": {
    "market": "KR",
    "state": "not_on_record"
   },
   "auditor_location": {
    "market": "KR",
    "state": "not_on_record"
   },
   "changes": {
    "market": "KR",
    "reason": "no lifecycle type map for this register yet (SHELF-01: us and ca first)",
    "state": "not_on_record"
   }
  },
  "cmr": "kr-cm-kg/KOSDAQ/121890",
  "coverage": {
   "count": 0,
   "houses": [],
   "pages_checked": [],
   "read_by": "Perplexity sonar (search) · page read by this rail",
   "read_date": "2026-11-12",
   "since": null,
   "state": "none_found"
  },
  "disclosure": {
   "against": {
    "exchange": {
     "issuers": 1819,
     "median_cadence_gap_days": 8,
     "median_filings": 33,
     "median_latency_days": 16,
     "name": "KOSDAQ"
    },
    "sector": {
     "issuers": 136,
     "median_cadence_gap_days": 8,
     "median_filings": 39,
     "median_latency_days": 10,
     "name": "전자부품 제조업"
    }
   },
   "by_type": {
    "agm_egm": 9,
    "corporate_news": 7,
    "directors_dealings": 1,
    "regulatory_filing": 1,
    "results": 6
   },
   "cadence_median_gap_days": 8,
   "filing_days": 18,
   "filings": 24,
   "latency_days": 85,
   "latest": [
    {
     "category": null,
     "date": "2026-08-13",
     "source": "https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260813001031",
     "title": "반기보고서 (2026.06)",
     "type": "results"
    },
    {
     "category": null,
     "date": "2026-07-20",
     "source": "https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260720900257",
     "title": "임시주주총회결과",
     "type": "agm_egm"
    },
    {
     "category": null,
     "date": "2026-07-03",
     "source": "https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260703900377",
     "title": "[기재정정]주주총회소집결의              (임시주주총회)",
     "type": "agm_egm"
    },
    {
     "category": null,
     "date": "2026-07-03",
     "source": "https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260703000274",
     "title": "주주총회소집공고",
     "type": "agm_egm"
    },
    {
     "category": null,
     "date": "2026-06-02",
     "source": "https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260602900430",
     "title": "[기재정정]주주총회소집결의              (임시주주총회)",
     "type": "agm_egm"
    }
   ],
   "latest_filing_date": "2026-08-13",
   "read": "the node's event lines (list_events_since), as get_filings serves them",
   "source": "https://mcp.kr-cm-kg.ai/events/KOSDAQ/121890",
   "window": {
    "from": "2025-11-06",
    "to": "2026-11-06"
   }
  },
  "identity": {
   "exchange": {
    "read_by": "KIND (KRX) listed-company list (corpList.do download)",
    "read_date": "2026-11-06",
    "read_date_basis": "the record version as_of",
    "source": "https://kind.krx.co.kr/corpgeneral/corpList.do?method=download&searchType=13",
    "state": "sourced",
    "value": "KOSDAQ"
   },
   "isin": {
    "read_by": "KRX stock finder (data.krx.co.kr finder_stkisu: full_code = the KRX standard code)",
    "read_date": "2026-11-08",
    "read_date_basis": "the field",
    "source": "https://data.krx.co.kr/comm/bldAttendant/getJsonData.cmd  [POST bld=dbms/comm/finder/finder_stkisu, mktsel=ALL]",
    "state": "sourced",
    "value": "KR7121890008"
   },
   "jurisdiction": {
    "read_by": "DART company.json (company profile per corp_code, keyed API) (jurir_no)",
    "read_date": "2026-11-06",
    "read_date_basis": "the record version as_of",
    "source": "https://opendart.fss.or.kr/api/company.json?corp_code=00604815",
    "state": "sourced",
    "value": "South Korea (DART filer with a corporate registration number)"
   },
   "lei": {
    "market": "KR",
    "reason": "no GLEIF record registered as 129-81-42052",
    "state": "not_on_record"
   },
   "name": {
    "read_by": "DART company.json (company profile per corp_code, keyed API)",
    "read_date": "2026-11-06",
    "read_date_basis": "the record version as_of",
    "source": "https://opendart.fss.or.kr/api/company.json?corp_code=00604815",
    "state": "sourced",
    "value": "SD system  Co., Ltd"
   },
   "sector": {
    "read_by": "KIND (KRX) listed-company list (corpList.do download) (업종)",
    "read_date": "2026-11-06",
    "read_date_basis": "the record version as_of",
    "source": "https://kind.krx.co.kr/corpgeneral/corpList.do?method=download&searchType=13",
    "state": "sourced",
    "value": "전자부품 제조업"
   },
   "security_type": {
    "read_by": "KIND (KRX) listed-company list (corpList.do download)",
    "read_date": "2026-11-06",
    "read_date_basis": "the record version as_of",
    "source": "https://kind.krx.co.kr/corpgeneral/corpList.do?method=download&searchType=13",
    "state": "sourced",
    "value": "Corporate"
   },
   "segment": {
    "market": "KR",
    "state": "not_on_record"
   },
   "ticker": {
    "read_by": "KIND (KRX) listed-company list (corpList.do download)",
    "read_date": "2026-11-06",
    "read_date_basis": "the record version as_of",
    "source": "https://kind.krx.co.kr/corpgeneral/corpList.do?method=download&searchType=13",
    "state": "sourced",
    "value": "121890"
   },
   "website": {
    "read_by": "KIND (KRX) listed-company list (corpList.do download)",
    "read_date": "2026-11-06",
    "read_date_basis": "the record version as_of",
    "source": "https://kind.krx.co.kr/corpgeneral/corpList.do?method=download&searchType=13",
    "state": "sourced",
    "value": "http://www.sdsystem.co.kr"
   }
  },
  "licensed": {
   "columns": [
    "licensor",
    "entitlement",
    "title",
    "date",
    "source"
   ],
   "rows": [],
   "rule": "A licensed row is served only to an agent whose firm holds that licence (licensor, entitlement). No licensed row is loaded."
  },
  "lifecycle": {
   "delisting": {
    "market": "KR",
    "reason": "no lifecycle type map for this register yet (SHELF-01: us and ca first)",
    "state": "not_on_record"
   },
   "domicile_change": {
    "market": "KR",
    "reason": "no lifecycle type map for this register yet (SHELF-01: us and ca first)",
    "state": "not_on_record"
   },
   "listing": {
    "market": "KR",
    "reason": "no lifecycle type map for this register yet (SHELF-01: us and ca first)",
    "state": "not_on_record"
   },
   "name_change": {
    "market": "KR",
    "reason": "no lifecycle type map for this register yet (SHELF-01: us and ca first)",
    "state": "not_on_record"
   },
   "segment_move": {
    "market": "KR",
    "reason": "no lifecycle type map for this register yet (SHELF-01: us and ca first)",
    "state": "not_on_record"
   }
  },
  "market": "KR",
  "node": "kr-cm-kg",
  "numbers_hash": "sha256:0823afb954aaaf58375c52181bb3fd3117b9a21ed060114475b642763c3a9581",
  "open_research": {
   "read_date": "2026-11-12",
   "rows": [],
   "state": "none_found"
  },
  "orderability": {
   "chapter_as_of": "2026-11-04",
   "client_categories": [],
   "determinable": false,
   "read": {
    "chapter": "https://mcp.kr-cm-kg.ai/book/aio.json",
    "door": "https://mcp.kr-cm-kg.ai/mcp",
    "tool": "get_orderability"
   },
   "reason": "the chapter's orderability section carries no client_categories: the outcome cannot name its client category",
   "rule_version": "acm-68000/kr/suitability-and-appropriateness-fscma-articles-46-and-46-2/r1",
   "section": "kr.aio.v5"
  },
  "record": {
   "as_of": "2026-11-06",
   "url": "https://mcp.kr-cm-kg.ai/record/KOSDAQ/121890",
   "version": 1
  },
  "schema": "research-numbers v0.1 (USR-01, 2026-11-11)",
  "status": {
   "read_date": "2026-11-08",
   "source": "https://kind.krx.co.kr/investwarn/tradinghaltissue.do?method=searchTradingHaltIssueMain",
   "value": "listed, not halted"
  }
 },
 "numbers_hash": "sha256:0823afb954aaaf58375c52181bb3fd3117b9a21ed060114475b642763c3a9581",
 "path": "/kr/KOSDAQ/121890",
 "schema": "research-page v0.1 (USR-02, 2026-11-11)",
 "sections": [
  {
   "id": "identity",
   "text": "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.",
   "title": "Identity and listing"
  },
  {
   "id": "disclosure",
   "text": "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.",
   "title": "The disclosure read"
  },
  {
   "id": "auditor",
   "text": "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.",
   "title": "Auditor"
  },
  {
   "id": "events",
   "text": "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.",
   "title": "Events and halts"
  },
  {
   "id": "orderability",
   "text": "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.",
   "title": "Orderability"
  },
  {
   "id": "coverage",
   "text": "No research houses were found on the issuer's own investor-relations page. The count is 0.",
   "title": "Coverage"
  },
  {
   "id": "open_research",
   "text": "No openly published research notes were found. The count is 0.",
   "title": "Open research"
  },
  {
   "id": "licensed",
   "text": "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.",
   "title": "Licensed"
  },
  {
   "id": "depth",
   "text": "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.",
   "title": "As-of depth"
  },
  {
   "id": "sources",
   "text": "8 source pages are named on this page; every value above carries its own source page and read date in the numbers.",
   "title": "Sources"
  }
 ],
 "sources": [
  {
   "for": "identity.exchange",
   "source": "https://kind.krx.co.kr/corpgeneral/corpList.do?method=download&searchType=13"
  },
  {
   "for": "identity.isin",
   "source": "https://data.krx.co.kr/comm/bldAttendant/getJsonData.cmd"
  },
  {
   "for": "identity.jurisdiction",
   "source": "https://opendart.fss.or.kr/api/company.json?corp_code=00604815"
  },
  {
   "for": "the disclosure lines",
   "source": "https://mcp.kr-cm-kg.ai/events/KOSDAQ/121890"
  },
  {
   "for": "the halt flag",
   "source": "https://kind.krx.co.kr/investwarn/tradinghaltissue.do?method=searchTradingHaltIssueMain"
  },
  {
   "for": "the auditor",
   "source": "https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260318000689"
  },
  {
   "for": "the orderability chapter",
   "source": "https://mcp.kr-cm-kg.ai/book/aio.json"
  },
  {
   "for": "the record",
   "source": "https://mcp.kr-cm-kg.ai/record/KOSDAQ/121890"
  }
 ],
 "title": "SD system  Co., Ltd (121890) — research page",
 "writer": {
  "by": "Claude through the platform account, Haiku class; one pass; checked against the numbers",
  "engine": "claude-haiku-5-5"
 }
}