Oct. 15, 2014

JCR Affirmed A-/Stable Long-term Issuer Rating, A- Rating on Bonds and J-1 Rating on CP of Idemitsu Kosan

Jul. 29, 2014

JCR Assigned A- Rating to Bonds of Idemitsu Kosan

Jul. 01, 2014

Highlights of Major Oil Distributors' Financial Results for Fiscal Year Ended March 31, 2014

Oct. 10, 2013

JCR Affirmed A-/Stable, A- and J-1 on Idemitsu Kosan

Jul. 10, 2013

JCR Assigned A- Rating to Bonds of Idemitsu Kosan

Jun. 06, 2013

JCR's Opinion on Idemitsu Kosan's Announcement on Final Invest Decision on Nghi Son Refinery/Petrochemical Complex

Sep. 13, 2012

JCR Assigned A- Rating to Bonds of Idemitsu Kosan

Sep. 11, 2012

JCR Affirmed A-/Stable and J-1 on Idemitsu Kosan

Dec. 12, 2011

JCR Affirmed A-/Stable and J-1 Rating on Idemitsu Kosan

Sep. 09, 2010

Affirmed A-/Stable and J-1 on Idemitsu Kosan

Aug. 28, 2009

Affirmed A-/Stable and J-1 on Idemitsu Kosan

Aug. 27, 2008

Affirmed A-/Stable and J-1 on sr.debts and CP of Idemitsu Kosan

Jun. 05, 2007

Assigned A-/Stable and J-1 to sr.debts and CP of Idemitsu Kosan