2. manufacturing industry.

3. Construction industry.

4. Transportation industry. Carbon quota trading means that when the amount of greenhouse gases such as carbon dioxide emitted by enterprises exceeds the prescribed standards, they need to buy carbon emission quotas that meet the standards in order to achieve the purpose of environmental protection and emission reduction. Energy industries such as coal, oil and natural gas emit a lot of greenhouse gases in the process of production and transportation, so it is necessary to buy more carbon emission credits. Some emerging industries are gradually participating in such transactions, such as renewable energy, energy conservation and environmental protection, and these industries are expected to become important participants in future carbon quota transactions. Under the background of global emission reduction, carbon quota trading will be more widely used and promoted in the future.