- Business
- Seojin System Co., Ltd. manufactures and supplies precision metal components and assemblies primarily for telecommunications, energy storage systems, semiconductors, automotive and LED applications; its core products include telecom equipment such as remote radio heads (RRH), radio units (RU), cabinets, enclosures, cases and server racks; mobile phone frames; automotive parts; semiconductor equipment; aluminum alloys and ingots; cable harnesses for power, telecom and data sectors; and LED cases for industrial, sports, security and street lighting uses, as well as products for heavy industries. Founded in 1996 and headquartered in Bucheon-Si, Gyeonggi Province, South Korea, the company operates manufacturing facilities in Vietnam and China, including subsidiaries such as SeoJin Vina Co., Ltd. and Texon Co., Ltd., which it acquired as its largest shareholder in 2015 to expand into semiconductor equipment and energy storage system (ESS) production. In recent developments, Seojin System achieved record 2024 revenues of 1.21 trillion won, driven by 132% growth in its ESS business, plans to launch a larger 20-foot ESS container in 2025 amid rising demand for high-capacity units, secured major orders including 122.4 billion won and 185 billion won contracts, expanded into semiconductor equipment manufacturing beyond parts supply, and partnered with a major securities firm in late 2025 to restructure shareholder equity and resolve put options on financial investor stakes held by Crescendo Equity Partners and SKS Private Equity.