TAC Business Summary

Tradetool Auto Co., Ltd. (3685.TWO), formerly known as Jeng Shiang Precision Ind., operates as a specialized manufacturer and supplier of precision automotive components, generating revenue through the production of high-strength metal stamping parts, automotive optics, and precision tooling. The company’s business is divided into three primary segments: Automotive Metal Parts, which includes stamping and welding for body structures; Automotive Optics, focusing on light guide plates (LGP) and LED lamp assemblies; and a growing Renewable Energy division providing operation and maintenance services for solar photovoltaic equipment. As a Tier 1 and Tier 2 supplier, Tradetool Auto serves a global client base including Audi, BMW, and major joint ventures like SAIC Volkswagen and Dongfeng Nissan. Within the competitive landscape of Taiwan’s automotive supply chain, the company competes directly with firms such as Jui Li Enterprise (1512.TW), Mobiletron Electronics (1533.TW), and Cubtek Inc. (2252.TWO), distinguishing itself through its dual expertise in both structural metal forming and advanced optical applications for smart vehicle lighting. The company is led by Chairman Chiang Kai-Liang, who holds a Master of Management from National Tsing Hua University and previously spearheaded the firm’s strategic pivot from consumer electronics to the automotive sector following a private equity-led restructuring in 2016. CEO and General Manager Chang Ming-Hung, an MBA graduate from National Sun Yat-sen University with a background in capital markets at Hongyuan Securities, oversees the group’s cross-strait operations and its expansion into the mainland Chinese market. Technical leadership is bolstered by key figures such as Li Chao-Pei, a former AU Optronics senior engineer who manages the automotive optics subsidiary, Tan De Technology. The company’s governance is supported by a board that includes representatives from major institutional shareholders Fu Ya Industrial Co., Ltd. and Aber Technology Co., Ltd., which together hold approximately 44% of the company’s outstanding shares as of early 2026.