1. "Law of the People's Republic of China on the Prevention and Control of Environmental Pollution by Solid Waste": my country's first special law on the prevention and control of environmental pollution by solid waste. The promulgation of this law has filled in the gaps in China's environmental protection legal system. A blank provides a basic legal basis for preventing and controlling environmental pollution by solid waste.

2. "Law of the People's Republic of China on Promotion of Circular Economy": This law clearly proposes the merger of low calorific value fuels such as waste heat, residual pressure, coal bed methane, coal gangue, coal slime, and garbage. Grid power generation project.

3. The "Renewable Energy Law of the People's Republic of China" clearly stipulates: "The state supports the integration of renewable energy into the grid for power generation" and lists municipal solid waste as a biomass fuel.

4. The profit model of the waste incineration industry is relatively clear. Its main income includes government subsidies for waste processing, on-grid electricity prices, heating income, slag sales income, etc. Among them, the value-added tax on centralized power generation and power supply income is levied. Retreat immediately. Its tax preferential policies are based on the "Regulations of the People's Republic of China on the Implementation of Enterprise Income Tax", the "Notice on Publishing the Catalog of Income Tax Preferences for Environmental Protection, Energy and Water Saving Projects (Trial)" (Finance and Taxation [2009] No. 166), "On Resources Notice on Value-Added Tax Policies for Comprehensive Utilization and Other Products.