Where to go through the procedures for going to Hong Kong from Tianjin?

If you are simply going to Hong Kong instead of going to other countries and regions via Hong Kong, then you need to apply for a Hong Kong and Macau pass first. Citizens who currently have a Tianjin household registration can go to the Third Public Security Bureau (Exit and Entry Administration Center, near the former First Palace) with their citizen ID cards and household registration books, or they can apply for free entry to Hong Kong through a travel agency. If you do not want to make arrangements for accommodation, sightseeing, etc. through a travel agency, but go to Hong Kong for business, you can usually apply for an endorsement for the most common travel purposes, and generally stay in Hong Kong for no more than 7 days. If you want to stay in Hong Kong for a long time, you need to apply for special endorsements, such as business endorsements. The required information and procedures are relatively complicated. It is recommended to go directly to the Third Public Security Bureau for consultation.