P ark Dong-suk is the founder and CEO of Sanil Electric, a South Korean manufacturer of specialized electrical transformers. He established the company in 1987 (restructured in 1994), building it into a key player in the global power infrastructure market. Sanil Electric specializes in producing transformers and reactors for industrial applications, including renewable energy projects and power grids. Park's leadership has been defined by a strong focus on engineering excellence and export-driven growth.

Under Park's direction, Sanil Electric has capitalized on the surging global demand for upgrading power grids, particularly in the United States and Europe. The company went public in 2024, a milestone that highlighted its rapid expansion and technological capabilities. Park is also a dedicated philanthropist, having made significant donations to his alma mater, Korea University, to support engineering research and development. His success reflects the critical role of specialized manufacturing in the modern energy transition.