Who are the other independent tower operators?

Metano currently has about four tower companies in China, including private tower companies such as Metano and Guo Dong Communication Network. However, compared with the China Tower, private tower companies are just like the Ganges River. For example, taking Metano as an example, public data shows that the number of operating towers is only 2,000 (the number of towers owned ranks 43rd in the world).