The canteen of Qingdao Development Zone Senior No.1 Middle School was awarded the bid by Qingdao Chuxin YEATION Supply Chain Co., Ltd. According to the relevant public information, Qingdao Development Zone Senior No.1 Middle School issued an announcement on September 3, 2122, and the winning bidder was Qingdao Chuxin YEATION Supply Chain Co., Ltd. Winning the bid refers to the behavior that the tenderee sends a bid-winning notice to the selected bidder and signs a written contract with it within the specified time.