Basic Agreement Concerning the Business Integration Iyogin Holdings, Inc. The Iyo Bank, Ltd. July 24, 2026 The Ehime Bank, Ltd.

－－ Background and details of the Business Integration Market contraction due to declines in population and number of businesses Intensifying competition for deposits amid the return of positive interest rates in Japan The rapid evolution of AI into social infrastructure Widening threat of cyber attacks Growth of cross-industry financial collaboration and BaaS Growth of sustainability-conscious and digital-native customer segments Expectations for stronger regional financial capabilities, including in business succession and M&A Expected growth of Japan’s maritime cluster driven by national policy Amidst a growing and rapidly changing business environment, the Companies have determined that strengthening their management base and enhancing their financial intermediary functions, as well as creating a sustainable business model, is the best option for contributing to the growth of the Companies’ stakeholders. Leaping forward as a financial group with a strong presence in the Seto Inland Sea region

－－ Creating a bright and prosperous future for the region Offering the best service and being worthy of people’s trust Rendering our best service with gratitude in our hearts To become a corporate group that continues to create and provide new value The Companies share common principles and are aligned in the direction they seek to pursue toward the development of the regional economy and industries and, under the principles of trust and mutual respect, will create a new financial group that exercises enhanced financial and information intermediation functions. Principles and objectives of the Business Integration Corporate Credo Long-term Vision A bank that supports progress in its home region A bank committed to progress with vigor and fortitude A bank that is a pleasant and rewarding place to work Close to customers, contributing to regional development Philosophy Vision Iyogin Holdings, Inc. The Ehime Bank, Ltd. The Iyo Bank, Ltd.

－－ Principles and objectives of the Business Integration Contribute to the growth of the regional economy Maximize corporate value Shared Strengths A domestic and international customer base built through an extensive branch network spanning 13 prefectures and the Singapore Branch Market share of deposits and loans in Ehime Prefecture Regional co-creation capabilities through sustainability management and regional revitalization through the creation of new businesses Strong expertise and a high domestic market share in ship finance (Loan balance) (*Note 2) Iyo Bank: 3rd domestically (10th globally) Ehime Bank: 12th domestically (37th globally) (Companies’ aggregated market share) (*Note 1) Deposits: 52.6％; Loans: 51.0% Advanced digital implementation, including DHD services such as the “AGENT App” Strong securities investment performance through high-level ALM and agile portfolio management Providing community-based financial services founded on relationships of trust with local communities and customers Flexible collaboration with non-financial partners, including through the “AP Platform” and “HandyBank Branch” Ehime Bank’s Strengths Iyogin HD’s Strengths *Note 1: As of March 31, 2025 (Source: The Japan Financial News Co., Ltd., Financial Map 2026 (market shares among regional banks, second-tier regional banks, shinkin banks, credit cooperatives, and labor banks)) (Japanese only) *Note 2: As of December 31, 2025 (Source: Petrofin Research, Key Developments and Growth in Global Ship Finance) Contribute to the growth of the regional economy and maximize corporate value by demonstrating and integrating the individual and shared strengths of the Companies

Trade name to be changed *(Note) －－ The Business Integration will be implemented by way of a share exchange in which Iyogin HD will become the wholly owning parent company and Ehime Bank will become its wholly owned subsidiary, subject to the approval thereof by the general shareholders meeting and the acquisition of the necessary permissions, approvals, and the like from the relevant authorities. The share exchange ratio will be determined by the time of the execution of the definitive agreement regarding the Business Integration, taking into account the results of due diligence to be conducted in the future, the results of the share exchange ratio calculations by the third-party valuation firms appointed by each of the Companies, and other factors. Based on the determination that, following the Business Integration, pursuing business activities in a way that leverages the strengths of both banks will contribute to achieving the principles and objectives of the Business Integration, the Companies plan to commence a “single platform multi-brand” system (a two-bank system). Form of the Business Integration Shareholders Share Exchange Iyogin HD Iyo Bank Ehime Bank Financial Holding Company (Currently Iyogin HD) Ehime Bank Iyo Bank Before Business Integration After Business Integration *Note: Iyogin HD plans to change its current trade name subject to approval of a proposal for the name change at its annual general meeting of shareholders scheduled to be held in June 2027. Shareholders Shareholders Shareholders

－－ Outline of the Companies and the New Financial Group Following the Business Integration 　(As of March 31, 2026) Iyogin HD Ehime Bank Location of head office 1 Minami-Horibata-cho, Matsuyama-shi, Ehime 2-1 Katsuyama-cho Matsuyama-shi, Ehime Name and title of representative Kenji Miyoshi, Representative Director and President Yoshinori Nishikawa, President Stated capital 20 billion yen 21.3 billion yen Date of incorporation October 3, 2022 March 20, 1943 Total number of issued shares 313,408,831 shares of common stock 39,426,777 shares of common stock Market capitalization *(Note 1) 960.9 billion yen 86.3 billion yen End of fiscal year March 31 March 31 Total assets (consolidated) 9.5398 trillion yen 3.0826 trillion yen Net assets (consolidated) 877.8 billion yen 144.4 billion yen Balance in account and other deposits (non-consolidated) 7.2983 trillion yen 2.7843 trillion yen Loan balance (non-consolidated) 6.1644 trillion yen 2.0207 trillion yen Number of employees (consolidated) 3,098 employees 1,350 employees Number of branches*(Note 2) Domestic: 121 branches Overseas: 1 branch Overseas representative office: 1 branch Domestic: 81 branches Group companies Engage in banking, leasing, securities, consulting, credit cards, systems, administrative outsourcing, etc. Engage in leasing, credit cards, systems, administrative outsourcing, etc. *Note 1: As of July 3, 2026; excluding treasury shares. *Note 2: The number of branches of Iyogin HD is the number of branches of Iyo Bank. Each number excludes branches within branches, loan-specialized branches, and internet branches. 　(As of March 31, 2026) New Financial Group (simple combined figures) Market capitalization *(Note 1) 1.0472 trillion yen Total assets (consolidated) 12.6224 trillion yen Net assets (consolidated) 1.0222 trillion yen Balance in account and other deposits (non-consolidated) 10.0826 trillion yen Loan balance (non-consolidated) 8.1851 trillion yen Number of employees (consolidated) 4,448 employees Number of branches*(Note 2) Domestic: 202 branches Overseas: 1 branch Overseas representative office: 1 branch The new Group will have total assets exceeding 12 trillion yen, making it one of the largest financial groups in western Japan, and will pursue economies of scale and greater efficiency while contributing to the development of the regional economy.

－－ Hiroshima Matsuyama City Saijo City Imabari City Niihama City Ozu City Yawatahama City Oita Kagawa Okayama Shikokuchuo City Uwajima City Chemicals, electrical machinery, nonferrous metals, and general machinery Paper manufacturing and processing Fish aquaculture Electrical machinery, agricultural machinery, chemicals, and tourism Citrus fruits and food processing Shipbuilding, marine transportation, petroleum, and towel and garment manufacturing Outline of the Companies and the New Financial Group Following the Business Integration (Number of Domestic Locations) (*Note) Iyogin HD Ehime Bank New Financial Group (simple combined figures) Ehime Prefecture Eastern Region 28 22 50 Central Region 42 31 73 Southern Region 19 13 32 Other Prefectures Kagawa 5 2 7 Kochi 1 5 6 Tokushima 1 1 2 Tokyo 2 1 3 Aichi 1 　 1 Osaka 3 1 4 Hyogo 2 　 2 Okayama 3 1 4 Hiroshima 5 3 8 Yamaguchi 1 　 1 Fukuoka 2 　 2 Oita 6 1 7 　Total 121 81 202 *Note: As of March 31, 2026; excluding branches within branches, loan-specialized branches, and internet branches (numbers for Iyogin HD represent the number of branches of Iyo Bank). Expand the Companies’ business and customer bases by leveraging their brands and branch networks across Ehime Prefecture and the Seto Inland Sea region, which is home to diverse industries including shipbuilding, one of Japan’s 17 strategic sectors Yamaguchi Kochi Fukuoka Osaka Hyogo Tokushima

－－ Synergistic effects expected from the Business Integration To achieve the objectives of the Business Integration at an early stage, the Companies will implement specific measures with a view toward achieving the synergistic effects, realize regional economic growth, and maximize corporate value Establish a high-quality sales structure that leverages the expertise and networks of the Companies Provide tailored responses for customers and engage in high-quality business activities by integrating the customer base Improve convenience through digitalization Diversify businesses by expanding into new business domains Further contributing to the region and customers Optimize channel networks and services while maintaining customer convenience Integrate administrative work and systems and standardize products and services Concentrate and streamline various head office and branch operations and digitize operations for individual customers and local governments Optimize organizational structures, including those of group companies Improving business efficiency Allocate personnel to areas to be strengthened, such as consulting, and priority areas, such as digital transformation and new businesses Issue long-term assignments to specialized head office departments and external organizations, and conduct secondments to group companies Reassign trained personnel as branch staff to share expertise and further enhance the Companies’ ability to provide value Enhancing growth and new businesses

－－ Future schedule Scheduled date Details July 24, 2026 (today) Execution of the Basic Agreement concerning the Business Integration December 2026 (scheduled) Execution of the Definitive Agreement and the Share Exchange Agreement February 2027 (scheduled) Extraordinary general meeting of shareholders of Ehime Bank April 1, 2027 (scheduled) Effective date of the Share Exchange *Note 1:The above schedule is based on current plans and may be changed depending on future discussions between the Companies and other relevant factors. *Note 2:The implementation of the Business Integration is subject to the receipt of the required approvals, permits, and other authorizations from the relevant authorities. Any cause for delay in the schedule for the Business Integration that arises due to the acquisition status of such approvals, permits, or other authorizations will be promptly announced. *Note 3:If the Business Integration constitutes a simplified share exchange as provided for in Article 796, Paragraph 2 of the Companies Act, then the Business Integration will be carried out without the approval of Iyogin HD’s general meeting of shareholders.

－－ This document contains statements regarding future performance. Such statements do not guarantee future performance and are subject to risks and uncertainties. Please note that actual future performance may differ from the targets due to changes in the business environment and other factors. The form of the Business Integration is subject to change pursuant to ongoing discussions and examinations between the Companies. Iyogin Holdings General Planning Division　 Tel: 089-907-1034 Ehime Bank Planning and Public Relations Department Tel: 089-933-1111 Contact information for inquiries concerning the Business Integration