| 09/11/2025 16:00 |
Notice Regarding Commencement of Tender Offer for Shares of Fuji Oil Company, Ltd. (Securities Code 5017) |
| 09/10/2025 10:00 |
Mitsui Chemicals, Idemitsu Kosan, and Sumitomo Chemical Enter Into MOU |
| 08/30/2025 00:30 |
Idemitsu ESG Data Book 2025 |
| 08/30/2025 00:30 |
Idemitsu Integrated Report 2025 |
| 08/29/2025 18:30 |
Notice Regarding Receipt of Dividends from Consolidated Subsidiary |
| 08/08/2025 15:35 |
Presentation on Results for the 1st Quarter FY2025 |
| 08/08/2025 15:35 |
Consolidated Financial Results [Japan GAAP] for the three months ended June 30, 2025 |
| 06/19/2025 14:00 |
Entry into oil and gas field exploration and development blocks in Malaysia |
| 05/28/2025 08:00 |
Matters Subject to Measures for Electronic Provision upon Giving Notice of 110th Ordinary General Meeting of Shareholders |
| 05/28/2025 08:00 |
Notice of Convocation Annual General Meeting 2025 |
| 05/13/2025 15:30 |
Presentation on Results for FY2024 |
| 05/13/2025 15:30 |
Notice regarding change proposals of Representative Director, Directors and Auditors |
| 05/13/2025 15:30 |
Consolidated Financial Results [Japan GAAP] for the Fiscal Year Ended March 31, 2025 |
| 04/30/2025 15:30 |
Notice regarding conclusion of a loan agreement with financial covenants |
| 04/22/2025 17:00 |
[Delayed]Completed construction to increase capacity of Plant 1,small pilot facilities for mass production of solid electrolytes |
| 04/15/2025 15:30 |
Announcement on the Absorption-type Merger (Simple, Short Form Merger) with RS ENERGY K.K., a Wholly Owned Subsidiary |
| 04/11/2025 08:45 |
Notice Concerning Change in Major Shareholders |
| 03/19/2025 10:00 |
Announcement on Decision of Conditions of the issuance of First Stock Acquisition Rights via Third-Party Allotment for Acquisition of Shares |
| 03/19/2025 10:00 |
Announcement on the Result and Completion of the Acquisition of Treasury Shares through Off-Auction Own Share Repurchase Trading System (ToSTNeT-3) |
| 03/18/2025 16:15 |
Announcement on Acquisition of Treasury Shares through Off-Auction Own Share Repurchase Trading (ToSTNeT-3) System |
| 03/14/2025 17:30 |
Announcement on Completion of the Acquisition of Treasury Shares and Number of Treasury Shares to be Cancelled |
| 03/03/2025 13:00 |
Announcement on the Status of the Acquisition of Treasury Shares |
| 02/27/2025 13:30 |
Idemitsu has decided to construct a large-scale production facility for lithium sulfide |
| 02/12/2025 15:30 |
Consolidated Financial Results [Japan GAAP] for the nine months ended December 31, 2024 |
| 02/12/2025 15:30 |
Announcement Regarding Acquisition and Retirement of Treasury Shares |
| 02/12/2025 15:30 |
Announcement on Revisions to Consolidated Earnings Forecasts for the Fiscal Year Ending March 2025 |
| 02/12/2025 15:30 |
Presentation on Results for the 3rd Quarter FY2024 |
| 02/12/2025 13:00 |
Notice of Change of Representative Directors |
| 02/03/2025 13:00 |
Announcement on the Status of the Acquisition of Treasury Shares |
| 01/06/2025 13:00 |
Announcement on the Status of the Acquisition of Treasury Shares |
| 12/25/2024 11:30 |
Notice Regarding Results of Tender Offer for Shares of AGRO-KANESHO CO., LTD. (Securities Code 4955) and Change in the Subsidiary |
| 12/18/2024 13:30 |
Majority investment in Vecco, a company promoting a vanadium project in Australia, and full-scale entry into a critical minerals business |
| 12/02/2024 13:00 |
Announcement on the Status of the Acquisition of Treasury Shares |
| 11/19/2024 00:30 |
Idemitsu ESG Data Book 2024 |
| 11/13/2024 08:45 |
[Delayed]Notice Regarding Commencement of Tender Offer for Shares of AGRO-KANESHO CO., LTD. (Securities Code 4955) |
| 11/12/2024 13:00 |
Announcement on the Absorption-type Merger (Simple, Short Form Merger) with RS Renewables K.K., a Wholly Owned Subsidiary |
| 11/12/2024 13:00 |
Announcement on Interim Dividends and Revision of Dividend Forecasts |
| 11/12/2024 13:00 |
(Change of Disclosure Matters) Announcement on the Revision of the Shareholder Returns Policy in the Medium-term Management Plan |
| 11/12/2024 13:00 |
Presentation on Results for the 2nd Quarter FY2024 |
| 11/12/2024 13:00 |
Consolidated Financial Results [Japan GAAP] for the six months ended September 30, 2024 |
| 11/11/2024 11:00 |
[Delayed]Idemitsu and Mitsubishi Gas Chemical to establish supply system for e-methanol and biomethanol in Japan |
| 11/01/2024 15:00 |
Announcement on the Status of the Acquisition of Treasury Shares |
| 10/28/2024 11:00 |
Basic Design of Large Pilot Facility Begins for Commercialization of solid electrolytes for All-Solid-State Batteries in 2027-2028 |
| 10/23/2024 12:00 |
Joint Study by Idemitsu Kosan and Mitsubishi Corporation on Low-Carbon Ammonia |
| 10/22/2024 08:45 |
Notice Concerning Change in Major Shareholders |
| 10/15/2024 12:00 |
JAPEX, Idemitsu, and HEPCO Commission an engineering design work toward the Launch of CCS Project in Tomakomai Area |
| 10/09/2024 13:30 |
Idemitsu Kosan and Mitsui Chemicals to Move on to FEED Phase in Mulling the Consolidation of Their Chiba Ethylene Complexes |
| 10/09/2024 11:00 |
Notice Concerning Change in Major Shareholders |
| 10/01/2024 15:00 |
Announcement on the Status of the Acquisition of Treasury Shares |
