TSU Business Summary

Taiwan Steel Union (TSU) operates a circular economy business model primarily generating revenue through the recovery of crude zinc oxide from electric arc furnace (EAF) dust and the collection of waste treatment fees. The company’s primary business segments include resource recycling, which processes hazardous EAF dust into high-purity zinc oxide for export to international smelters, and industrial waste management, which treats contaminated soil and incinerator fly ash. Through its subsidiary, Tai-Gang Resources, TSU has expanded into the production of green building materials, such as low-carbon controlled low-strength material (CLSM) and concrete derived from stabilized slag. TSU maintains a dominant, near-monopolistic position in Taiwan’s EAF dust recycling niche, outperforming diversified environmental services competitors such as Cleanaway Co., Ltd. (8422.TW), ECOVE Environment Corp. (6803.TW), and Sunny Friend Environmental Technology (8341.TW) due to its specialized high-temperature metallurgical technology and strategic industry integration. Founded in 1984 as a joint venture by a consortium of Taiwan’s leading steel manufacturers, TSU is currently led by Chairman Lin Tsai-Hsiang (林才翔), who assumed the role in May 2025 after serving as the company’s General Manager, bringing decades of operational expertise in resource recovery. The executive team is rounded out by General Manager Hsieh Tsung-Lin (謝宗霖), a former plant manager with deep technical knowledge of waste stabilization and AI-driven precision feeding systems. The company’s board and ownership structure remain anchored by its founding steel giants, including Feng Hsin Steel and Tung Ho Steel, which provide both a stable supply of raw materials and a robust institutional pedigree. This leadership team is currently focused on a 2026 strategic roadmap involving the expansion of solar power capacity and the commissioning of new fly ash water-washing facilities to diversify the company's environmental service portfolio.