Investor Presentaiton

Reduce Cost of Capital through Business Transformation Enhance earnings to achieve ROE ≥ 10% Transition to decarbonized businesses Achieve GHG reduction targets Convert "quality" of profits Non-fossil fuel business (incl. new businesses) Business Transformation Transition to growing businesses Expand new businesses Leverage M&A Fossil fuel business ≤ 50% of earnings Change in the earning structure FY23 Forecast *1 FY25 Medium-term plan FY30 Medium-term plan Reduce earnings volatility from market fluctuations Achieve carbon neutrality, profit growth, and a stable earning structure through business transformation while also pursuing lower cost of capital idemitsu *1: FY23 forecast is adjusted by applying market assumptions for coal prices, etc. set forth in the medium-term plan Copyright Idemitsu Kosan Co., Ltd. All Rights Reserved. 7

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