The 'beads' that link up HK and mainland 1 2021-05-07 14:29:09China Daily Editor : Liu Yimeng ECNS App Download Vanessa Tang Sau-han, director of the Hong Kong government's liaison unit in Shenzhen, delivers a speech on collaboration among cities of the Guangdong-Hong Kong-Macao Greater Bay Area. (Photo Provided to China Daily) There're two calendars on the office desk of Vanessa Tang Sau-han, director of the Hong Kong Special Administrative Region government's Shenzhen Liaison Unit. One shows the statutory public holidays in Hong Kong and the other shows those of the Chinese mainland. She's accustomed to checking the calendars first before contacting people or organizations in either city.