Zhitong Financial APP News, hehui optoelectronics (688538.SH) announced that the company's core technical personnel Yu Tao resigned due to personal reasons and no longer holds any position in the company. The work that Yu Tao is responsible for has been smoothly handed over, and Yu Tao's departure will not affect the integrity of the company's core technology and will not have a substantial impact on the company's production and operation.