Du is the health administrative director of Tianjin Meinian University. On May 23, 2023, the theme activity of 2023 Customer Service Day was held at the Warm Heart of Gulou Branch of Meinian Dajian Tianjin Company. General manager Zhang, deputy general manager and general manager of marketing center, deputy general manager and administrative general manager Du, general manager of medical management center Wang Xiaoli, general manager of medical management center Chen and many other corporate executives provided meticulous and intimate service support in front of the welcoming, inspection, customer service and inspection departments.