Idemitsu Kosan Co.,Ltd. revised consolidated earnings guidance for the year ended March 31, 2023. For the year, the company expects net sales of JPY 9,260,000 million, Operating Income of JPY 375,000 million, Net Income Attributable to Owners of the Parent of JPY 280,000 million or JPY 941.80 per share compared to the previous guidance net sales of JPY 8,600,000 million, Operating Income of JPY 190,000 million, Net Income Attributable to Owners of the Parent of JPY 165,000 million or JPY 554.99 per share provided earlier.