Sino Tactful Co., Ltd. (5481.TWO) engages primarily in the education sector in Taiwan, providing authorized children's education programs including the Sesame Street English brand with fully English-immersion teaching materials and comprehensive professional services; educational guidance for junior high and high school advancement, covering subjects, entrance exams, skills learning, and exam training; property management services overseeing nearly 20,000 square meters of land and factory space; and strategic investments focused on green and environmental protection industries, technology, and other sectors. The company, founded in 1979 and headquartered at No. 328, Changchun Road, Zhongshan District, Taipei City, Taiwan, operates mainly in the domestic market with subsidiaries including Sesame Village Education Co., Ltd., Yufeng Property Management Consulting Co., Ltd., and international holdings such as Sino Tactful (Hong Kong) Holdings Limited and Wuhan Tuotesi Education Science and Technology Co., Ltd.. Originally established as Hwa Woei Laminate Corporation in June 1990 for copper clad laminates and related electronics before pivoting to education, it underwent key name changes including to Hwa Well Green Technology Co., Ltd. in 2017 and its current name in May 2018; recent developments feature an October 2024 equity investment in Ares Biotech Co., Ltd. acquiring an 8.58% stake and compliance with updated regulations that month, alongside ongoing optimization of its investment structure and property acquisitions.