United Microelectronics names Po-Wen Yen CEO, effective immediately UMC announced that its board appointed senior vice president Po-Wen Yen as the company's new CEO, effective immediately. Former CEO Dr. Shih-Wei Sun was promoted to the position of UMC vice chairman. Prior to becoming CEO, Po-Wen Yen was UMC's senior vice president responsible for 12-inch operations.
News For UMC From The Last 14 Days
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