Recent Company News

• 11:44 AM ET Sep 18, 2025
  

  Idemitsu Kosan Co. releases 2025 ESG Data Book (¥1027.0000, 0)

• 11:18 AM ET Sep 15, 2025
  

  StreetAccount M&A Summary: Week of 8-Sep

• 03:19 AM ET Sep 11, 2025
  

  Idemitsu Kosan Co. to launch tender offer for Fuji Oil at ¥480/share, to run from 12-Sep to 28-Oct (¥333.0000, 0)

• 09:08 PM ET Sep 09, 2025
  

  Mitsui Chemicals, Idemitsu Kosan and Sumitomo Chemical sign MoU on integration of Sumitomo Chemical's PP and LLDPE businesses into Prime Polymer (¥999.7000, +0.7)

• 07:51 PM ET Sep 09, 2025
  

  Mitsui Chemicals, Idemitsu Kosan and Sumitomo Chemical to merge commodity polyolefin plastic operations - Nikkei (¥3802.0000, 0)

• 11:33 AM ET Aug 29, 2025
  

  Idemitsu Kosan Co. releases 2025 Integrated Report (¥984.0000, 0)

• 02:01 AM ET Aug 29, 2025
  

  Idemitsu Kosan Co. releases 2025 ESG data book (¥985.7000, -8.5)

• 02:57 AM ET Aug 08, 2025
  

  Idemitsu Kosan Co. reports Q1 net income attributable ¥5.24B vs FactSet (¥67.15B) [2 est, (¥75.60)-(58.70B)] (¥994.1000, 0)

• 11:34 AM ET Jul 31, 2025
  

  Idemitsu Kosan Co. releases 2025 Integrated Report (¥968.8000, 0)

• 01:06 AM ET Jun 19, 2025
  

  Idemitsu Kosan Co. acquires 40% interest in two blocks in Malaysia for oil and gas exploration and development (¥886.0000, -8.9)