Seven people on Friday were jailed for 10 months after pleading guilty at the District Court to perverting the course of justice.
They were among 12 Hong Kong people who tried to flee to Taiwan by speedboat and were intercepted by the Guangdong coastguard in August 2020.
Li Tsz-yin, Liu Tsz-man, Cheng Tsz-ho, Cheung Chun-fu, Cheung Ming-yu, Yim Man-him and Kok Tsz-lun committed the offence between December 2019 and August 2020.