Highlights

12-19 Idemitsu Kosan and Mitsui Chemicals reach final agreement on consolidating Chiba ethylene complexes to optimize production RE
11-21 Overwatch Capital and Idemitsu Form 1 GW Partnership to Build High-Density AI Data Centers Across Ten U.S. States CI
11-11 Idemitsu Kosan Co.,Ltd. Announces Cash Dividend for the Second Quarter Ended September 30, 2025, Payable on December 5, 2025 CI
11-11 Idemitsu Kosan Co.,Ltd. Revises Consolidated Earnings Guidance for the Fiscal Year Ending March 31, 2026 CI
11-11 Idemitsu Kosan Co.,Ltd. authorizes a Buyback Plan. CI
11-11 Idemitsu Kosan Co.,Ltd. announces an Equity Buyback for 43,000,000 shares, representing 3.34% for ¥30,000 million. CI
11-11 Idemitsu president: we need to reassess our 2030 and 2040 decarbonization targets RE
11-11 Idemitsu Kosan Co Ltd - announces decision to buy and cancel treasury shares RE
11-06 Idemitsu Kosan Co.,Ltd. and Source Energy Company Announce Strategic Collaboration to Co-Create Next-Generation Solar Array Products for Space Market CI
29/10/25 Idemitsu Kosan Gains Control of Fuji Oil After Successful Tender Offer MT
28/10/25 Idemitsu Kosan Co.,Ltd. completed the acquisition of 52.97227% stake in Fuji Oil Company, Ltd. from a group of sellers for ¥19.6 billion. CI
29/09/25 Ex-dividend day for interim dividend FA
11/09/25 Idemitsu Kosan Co.,Ltd. proposed to acquire 70.42% stake in Fuji Oil Company, Ltd. from a group of sellers for ¥26.1 billion. CI
11/09/25 Fuji Oil Backs Idemitsu's 480 Yen-Per-Share Tender Offer, Plans Delisting MT
11/09/25 Fuji Oil Co Ltd (Shinagawa): supports Idemitsu's tender offer to take co private, recommend shareholders to tender shares RE
11/09/25 Idemitsu Kosan Co to launch tender offer for Fuji Oil Co at 480 yen per share RE
10/09/25 Japan's Chemical Heavyweights to Merge Polyolefin Businesses MT
10/09/25 Japan's Top Chemical Firms to Merge Polyolefin Operations MT
10/09/25 Mitsui Chemicals, Idemitsu, Sumitomo Chemical will integrate domestic commodity plastic businesses RE
10/09/25 Mitsui Chemicals, Idemitsu Kosan and Sumitomo Chemical to integrate commodity resin businesses, Nikkei says RE
29/08/25 Idemitsu Kosan Receives $400 Million Dividend from Asia Pacific Subsidiary MT
23/07/25 Inpex acquires interests in multiple oil and gas licenses in Norway RE
19/06/25 Japan's Idemitsu Kosan: Acquired Interests In Two Blocks Located Off The Coast Of Sarawak, Malaysia From South Korea's SK Earthon RE
13/05/25 Idemitsu Cfo: U.s. Tariffs Are Expected To Reduce Our Profits By 40 Billion Yen In Fy2025/26 RE
13/05/25 Idemitsu Kosan Co.,Ltd. Provides Dividend Guidance for Second Quarter End and Year End of Fiscal Year Ending March 31, 2026 CI
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