In accordance with Article 2 of the Provisions on the Scope of Infrastructure and Public Utility Projects that must be tendered (DRE Regulation [2018] 843)，Large-scale infrastructure, public utilities and other projects related to social public interests and public safety that do not fall under the circumstances specified in Article 2 and Article 3 of the Provisions on Engineering Projects that must be Tendering，The specific scope of bidding must include: (1) coal, oil, natural gas, electricity, new energy and other energy infrastructure projects;(2) Railway, road, pipeline and water transport，As well as transportation infrastructure projects such as public aviation and A1 general airports;(3) communication infrastructure projects such as telecommunications hubs and communication information networks;(4) water conservancy infrastructure projects such as flood control, irrigation, drainage and water diversion (supply);(5) Urban rail transit and other urban construction projects。May I ask, the town gas municipal natural gas pipeline belongs to public utilities, whether it must be in the scope of bidding？