You need to apply for a HK Exit and Entry Permit from the local Public Security Bureau. It will take about 1-2 weeeks.

Hi,

I changed my plan. I will be going there via Hongkong. My business trip is 12 days and I would travel from Shenzhen to Hongkong on 6th day. Do I still need to apply visa in order to visit HongKong? I will be returning from HongKong.

yes, you still need to apply for Exit-entry Permit for travelling to and from Hong Kong and Macao and an "endorsement for individual visit (Geren Luyou)" from the relevant Public Security Bureau Office. Please pay attention to the below information, if your Hukou (Household Registration) is not in the list of following places, you can't go to Hong Kong by yourself, you have to join a tour.

Mainland residents from Guangdong Province and 28 cities, including Shanghai, Beijing, Nanjing, Suzhou, Wuxi, Hangzhou, Ningbo, Taizhou, Fuzhou, Xiamen, Quanzhou, Tianjin, Chongqing, Chengdu, Jinan, Shenyang, Dalian, Nanchang, Changsha, Nanning, Haikou, Guiyang, Kunming, Shijiazhuang, Zhengzhou, Changchun, Hefei and Wuhan who wish to come here for sightseeing purpose in individual capacity are required to obtain an Exit-entry Permit for travelling to and from Hong Kong and Macao and an "endorsement for individual visit (Geren Luyou)" from the relevant Public Security Bureau Office.

Mainland residents who wish to come here for sightseeing may join the group tours organized by designated Mainland tour companies. Group tour members need to obtain an Exit-entry Permit for Travelling to and from Hong Kong and Macao and an "endorsement for group visit (Tuandui Luyou)" issued by the Public Security Bureau Office. As group tour visitors, they must arrive and depart together as a group.