1. Consult the relevant departments of the local government: consult the urban planning, construction and other departments to learn about the subway project under construction in the local area and ask for the contact information of the construction team of this project.
2. Online search: You can search related keywords online, such as "subway construction team" and "subway engineering contractor", and find relevant enterprises or institutions through search engines and other tools to contact for more information.
3. Consult the subway station: If you know the location of the subway station under construction, you can go to the construction site of the subway station and ask the staff about the construction team information of the project.