[Shanghai: Strengthen the supply of natural gas and reserve capacity for more than 25 days by 2030] On September 3, the Shanghai Municipal Housing and Urban-Rural Development Management Committee issued the "Shanghai Housing and Urban-Rural Construction Management "Fifteenth Five-Year Plan"", which mentioned promoting the high-quality development of the gas industry. We will strengthen the supply of natural gas, continue to optimize the production, supply, storage and marketing system, further improve the pattern of both sea and land gas sources, and build a hub-type natural gas "one network" system. Continue to improve natural gas reserve capacity, and by 2030, the reserve capacity will reach more than 25 days. Standardize the layout of liquefied petroleum gas stations and establish and improve a bottom-up guarantee mechanism for liquefied petroleum gas supply with state-owned enterprises as the core. Promote regional gas market integration and continue to increase market concentration. Continue to improve the gas price adjustment mechanism. Promote the development of gas-electric coupling.