Sun Brothers Business Summary

Sun Brothers Development Co., Limited (3489.TWO) is a Taiwan-based real estate firm specializing in the development, construction, and sale of residential and commercial buildings. The company operates a multi-stream revenue model encompassing property sales, real estate leasing, and contract construction for public works projects. By managing the full real estate value chain—from land acquisition and project development to property management—Sun Brothers maintains a focused presence in the domestic market, particularly within the Taoyuan region. For the fiscal year ending December 31, 2025, the company reported annual sales of TWD 719.07 million. Its primary competitors include Sun-Sea Construction, Chien Kuo Construction, and Rich Development, against whom Sun Brothers positions itself as a specialized mid-sized developer focused on urban growth and infrastructure support. The company’s leadership is anchored by Chairman Chien Yuan-Cheng (簡元城) and General Manager Wen-Chieh Chien (簡文潔), who directs the firm’s strategic operations and project execution. Established in June 1991, Sun Brothers has historically operated under a family-led management structure, with the Chien family maintaining significant oversight of the company’s long-term trajectory. Supporting the core executive team is Chuang Yi-Fang (莊義芳), who serves as the company’s Spokesperson and Accounting Manager. The board of directors includes key figures such as Wei Cheng-Ta (魏成達), representing a leadership pedigree deeply rooted in the Taiwanese construction sector and characterized by a conservative yet agile approach to regional real estate development.