Investor Presentaiton

Table of Contents Initiatives aimed at enhancing corporate and equity value -Action to Implement Management that is Conscious of Cost of Capital and Stock Price- ■Highlights Results for the 2Q FY2023 Forecasts for FY2023 Progress on the mid-term management plan Reference ✓ Financial results ✓ Volume ✓ Crude/product price and operation ✓ Business overview idemitsu Copyright Idemitsu Kosan Co., Ltd. All Rights Reserved. 2

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