Is it illegal to hang a banner in front of the company?

Legal Subjectivity:

If the act of pulling banners violates public security management and disrupts social order, it is illegal. Generally, the public security organ may issue a warning or a fine of not more than 200 yuan; if the circumstances are serious, the person may be detained for not less than five days but not more than ten days, and may also be fined not more than 500 yuan. The law is objective:

Article 23 of the "Law of the People's Republic of China on Public Security Administration Punishments" Whoever commits any of the following acts shall be given a warning or fined not more than 200 yuan; if the circumstances are more serious, he shall be fined not more than 200 yuan. Detention for not less than five days but not more than ten days may result in a fine of not more than five hundred yuan: (1) Disturbing the order of agencies, groups, enterprises, and institutions, causing work, production, business, medical care, teaching, and scientific research to be unable to proceed normally, without causing serious consequences loss. Article 24 of the "Public Security Administration Punishment Law of the People's Republic of China" who commits any of the following acts and disrupts the order of large-scale mass activities such as culture and sports shall be given a warning or fined not more than 200 yuan; if the circumstances are serious, he shall be fined not more than 200 yuan. Detention for not less than five days but not more than ten days may result in a fine of not more than five hundred yuan: (1) Forcibly entering the venue; (2) Violating regulations by setting off fireworks or other items in the venue; (3) Displaying insulting slogans, Banners and other items; (4) Besieging referees, athletes or other staff; (5) Throwing debris into the field and refusing to be stopped; (6) Other behaviors that disrupt the order of large-scale mass activities.