Investor Presentaiton

I. Financial Highlights and Business Progress Identification of Material Issues Material Issues connects core CSR themes "SHINE" and "JAPEX Management Plan 2022-2030" Identified four issues from "SHINE" that needs to be addressed now for our sustainable growth Contribute to Society through our Business Establishment of Stable energy supply CN business Stable energy supply JAPEX We consider that oil and natural gas will continue to be indispensable energy sources for society at the carbon neutral-society in 2050 Based on this consideration, we will continue to work for stable energy supply through the development of oil and natural gas Establishment of CN business We will contribute to the carbon-neutral society by establishing CCS and others as our business, in order to realize a stable energy supply in the future Strengthen of Management Foundation Promote of HR development and diversity Digital transformation (DX) Copyright 2023 Japan Petroleum Exploration Co., Ltd. (JAPEX) All Rights Reserved. Promotion of HR development and diversity We consider that human resources (HR) are an origin of the value creation and essential to achieve our management plan Based on this consideration, we will enhance the ability of each employee for creating value through HR development, and strengthen company-wide capabilities through diversification of our employee Digital transformation (DX) We will realize the working environment that is able to focus on add- valued businesses through the strategic utilization of data and digital technologies, and make continuous challenges to further increase our corporate value 9

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