Joke Collection Website - Bulletin headlines - Is it illegal to post a factory building?

Is it illegal to post a factory building?

This is illegal.

No one is allowed to distribute, hang or post promotional materials and advertisements in public places without authorization, and no one is allowed to portray, scribble or spray slogans, promotional materials and advertisements on buildings and structures. In violation of the provisions, it shall be ordered to clean up, confiscate the illegal property and income, and impose a fine of more than 100 yuan 1000 yuan.