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On December 23, the final wall panel for the 12 tanks in the intermediate tank area of the Yushen 500,000 tons per year coal-based ethanol project was installed. The 12 tanks are respectively 1 3,000-cubic-meter unqualified ethanol tank, 2 1,000-cubic-meter ethanol testing tanks, 4 2,000-cubic-meter methanol intermediate buffer tanks, 2 2,000-cubic-meter circulating methyl ester tanks, 2 2,000-cubic-meter methyl acetate tanks, and 1 2,000-cubic-meter unqualified ethanol methyl ester tank. All storage tanks are internal floating roof tanks, consisting of various components such as the roof panel, grid structure, tube walls, bottom plate, platform, spiral staircase, and carbon steel floating disk. The edge plates of the bottom plate adopt an arch-shaped structure, the mid-section plates are welded together, and the tube walls are made up of sheet metal. These storage tanks are used to hold highly hazardous materials, which means that very high standards are required regarding the technical quality of their installation. Additionally, due to the cold weather recently, it is more difficult to ensure construction safety and maintain quality control. To ensure the efficient progress of the construction, Yushen Company organized everything in a scientific manner and made sound arrangements; the project’s participating units took proactive steps in advance, enforced strict quality control, and adhered to standardized construction practices. After 53 days of intensive work, all 12 storage tank structures were installed. The completion of this stage lays a solid foundation for the subsequent hydrostatic testing and the smooth installation of internal components and auxiliary facilities. The total investment in Yanchang Petroleum’s 500,000 tons per year coal-based ethanol project is 6.98 billion yuan; it is located in the Qingshui Industrial Park of the Yushen Industrial Zone, and it utilizes the ethanol production technology based on dimethyl ether carbonylation, which was developed jointly by Yanchang Petroleum and the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences. Construction on this project officially began on November 6, 2018, with completion scheduled by the end of 2021.