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

# Nippon Seisen Co.,Ltd. (Prime Market: 5659) — research page

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

## Identity and listing

The issuer is Nippon Seisen Co.,Ltd., listed on the Prime Market under ticker 5659. Its ISIN is not on the record, and its LEI is not on the record. Its security type is Corporate, its segment is not on the record, its sector is 3450 Iron and Steel, and its jurisdiction is Japan (EDINET domestic filer). Its listing status is listed, not halted.

## The disclosure read

The record holds 6 filings in the twelve months to 2026-11-06, across 3 filing days. The median gap between filing days is 117.0 days, against an exchange median of 29.0 days and a sector median of 40.0 days. Days from the latest filing to the record date are 130, against an exchange median of 70.0 days and a sector median of 88 days. The latest filing is dated 2026-06-29 and is of type ad_hoc. The window holds 1 ad_hoc filing, 3 regulatory_filing and 2 results. The exchange median is 10 filings and the sector median is 10 filings.

## Auditor

The auditor of record is 仰星監査法人, and its location is not on the record. The auditor changes are not on the record.

## Events and halts

The record does not carry listing, delisting, name change, domicile change or segment move events for this issuer. The halt flag shows listed, not halted.

## Orderability

The outcome for Qualified Institutional Investors is not determinable, because the rule states a product scope and the subject's record carries no instrument class to place within it. The signal code is null. The rule version is acm-68000/jp/suitability-principle-fiea-article-40/r1, and the chapter is as of 2026-11-04.

## Coverage

No research houses were found on the issuer's investor-relations page, and the count is 0.

## Open research

No openly published research notes were found on the record, and 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 market earliest sealed date is not on the record, and the live record began is not on the record.

## Sources

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

- https://www.jpx.co.jp/english/markets/statistics-equities/misc/tvdivq0000001vg2-att/data_e.xlsx (identity.exchange)
- https://disclosure2dl.edinet-fsa.go.jp/searchdocument/codelist/Edinetcode.zip (identity.jurisdiction)
- https://mcp.jp-cm-kg.ai/events/TSE-PRIME/5659 (the disclosure lines)
- https://www.jpx.co.jp/markets/equities/suspended/index.html (the halt flag)
- https://disclosure2.edinet-fsa.go.jp/WZEK0040.aspx?S100YDZS (the auditor)
- https://mcp.jp-cm-kg.ai/book/aio.json (the orderability chapter)
- https://mcp.jp-cm-kg.ai/record/TSE-PRIME/5659 (the record)

---
Allooloo Technologies Corp. · https://getresearch.ai/jp/TSE-PRIME/5659 · public-record only · the same page signed and receipted: get_research at https://mcp.getresearch.ai/mcp