E.SUN Financial Holding Company, Ltd., together with its subsidiaries, provides various financial products and services in Taiwan and internationally. The company operates through Corporate Banking Unit, Individual Banking Unit, Overseas Branches and Subsidiaries, and Others segments. It offers corporate and unsecured personal loans, and residential mortgages; foreign exchange, financial banking, and wealth management services; and credit cards and payment services. The company also deals in, underwrites, and brokers securities; and offers futures brokerage, venture capital investment, trust, insurance agency, security consultancy, real estate leasing and management, and remittance services. In addition, it is involved in the retail sale of computer software; and provision of software design, data processing, digital information supply, and business consultancy services. As of December 31, 2020, it operated a business department, an international banking department, a trust department, a credit card and payment division, an offshore banking unit, an insurance agent department, 8 overseas branches, and 138 domestic branches. The company was founded in 1992 and is based in Taipei, Taiwan.