The winning bidder for the Hainan Provincial Department of Emergency Management’s flood control material maintenance is Hainan Zhengkun Tendering Agency Co., Ltd. According to the official website of the Hainan Provincial Department of Emergency Management, the winning company for the maintenance of flood control materials of the Hainan Provincial Department of Emergency Management is Hainan Zhengkun Tendering Agency Co., Ltd. The company has a comprehensive Grade A engineering design qualification or a comprehensive Grade A supervision qualification or a Grade I or above general contracting qualification for construction projects or a comprehensive engineering consulting qualification. The company's address is 3a01, Floor 3a (4), Unit 2, Office Building, Guorui City (Boshiyuan), Haikuotaikongkong, No. 10 Daying Shandong 1st Road, Meilan District, Haikou City, Hainan Province, and the contact person is Mr. Guan.