Idemitsu Kosan Co.,Ltd. — Investor Relations & Filings
Idemitsu Kosan is an integrated energy and materials company. Its core operations encompass the refining and marketing of petroleum products through an extensive service station network, alongside the production of basic chemicals derived from its refining processes. The company's resource division develops oil, natural gas, coal, and geothermal energy assets. In parallel, Idemitsu is advancing its functional materials business, developing high-performance products such as materials for next-generation batteries. The company also manages a diverse power generation portfolio, including solar, wind, biomass, and natural gas facilities, supplying electricity to wholesale and retail customers. A key strategic focus is the transition toward carbon neutrality through the development of sustainable aviation fuel (SAF), synthetic fuels, and other low-carbon solutions.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| 訂正公開買付届出書 | 2021-01-29 | Japanese | |
| 変更報告書 | 2020-12-22 | Japanese | |
| 変更報告書 | 2020-12-22 | Japanese | |
| 変更報告書 | 2020-12-22 | Japanese | |
| 訂正公開買付届出書 | 2020-12-21 | Japanese | |
| 公開買付届出書 | 2020-12-16 | Japanese |
Browse filings by year
12 years| ID | Filing | Released | Lang | Actions | |
|---|---|---|---|---|---|
|
2021
1 filing
| |||||
| 7677864 | 訂正公開買付届出書 | 2021-01-29 | Japanese | ||
|
2020
10 filings
| |||||
| 7678853 | 変更報告書 | 2020-12-22 | Japanese | ||
| 7678851 | 変更報告書 | 2020-12-22 | Japanese | ||
| 7678852 | 変更報告書 | 2020-12-22 | Japanese | ||
| 7678946 | 訂正公開買付届出書 | 2020-12-21 | Japanese | ||
| 7679136 | 公開買付届出書 | 2020-12-16 | Japanese | ||
| 7681815 | 四半期報告書－第106期第2四半期(令和2年7月1日－令和2年9月30日) | 2020-11-11 | Japanese | ||
| 7682832 | 訂正有価証券報告書－第105期(平成31年4月1日－令和2年3月31日) | 2020-10-23 | Japanese | ||
| 7686788 | 四半期報告書－第106期第1四半期(令和2年4月1日－令和2年6月30日) | 2020-08-07 | Japanese | ||
| 7689488 | 有価証券報告書－第105期(平成31年4月1日－令和2年3月31日) | 2020-06-25 | Japanese | ||
| 7692778 | 四半期報告書－第105期第3四半期(令和1年10月1日－令和1年12月31日) | 2020-02-14 | Japanese | ||
|
2019
4 filings
| |||||
| 7696256 | 四半期報告書－第105期第2四半期(2019/07/01－2019/09/30) | 2019-11-14 | Japanese | ||
| 7699380 | 四半期報告書－第105期第1四半期(2019/04/01－2019/06/30) | 2019-08-14 | Japanese | ||
| 7709998 | 有価証券報告書－第104期(平成30年4月1日－平成31年3月31日) | 2019-06-27 | Japanese | ||
| 7714090 | 四半期報告書－第104期第3四半期(2018/10/01－2018/12/31) | 2019-02-14 | Japanese | ||
Market data
Market data not available
Price history
Peer group · Manufacture of refined petroleum products; manufacture of fossil fuel products
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Idemitsu Kosan Co.,Ltd. via the API
Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec.
Endpoints
| GET | /api/companies/11451/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=11451 | Paginated list of all filings (filterable by type, date, language) |
| GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status |
| GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) |
| GET | /api/isins/?company=11451 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
cURL
$ curl https://api.financialreports.eu/api/filings/?company=11451 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json"
Python
import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 11451}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"]
MCP server
// MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for Idemitsu Kosan Co.,Ltd. (id: 11451)"
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