On February 20, Qingzhou City held the city's work mobilization conference to commend the advanced models that have made outstanding contributions to the economic and social development of Qingzhou, among which Yao Zhongxiu, chairman of Shandong Useen Group Co., Ltd. was awarded the title of "Outstanding Contribution Entrepreneur of Qingzhou City" in 2023. Shandong Useen Group Co., Ltd. won the title of "2023 high-quality development outstanding Enterprise", the group's subsidiaries Shandong Useen Calcium Co.,Ltd. and Shandong Useen Casting Co., Ltd. won the title of "2023 high-quality development potential Enterprise".