Lui Bo (, age ) is the manager and one of the three shareholders of Mighty Current. His last known location was the bookstore. On 14 October 2015, he logged in for the last time onto the bookstore computer. Unconfirmed sources state that he was taken away from his wife's home in
Shenzhen.
Gui Minhai (, age ) is a Swedish national and one of the three shareholders of Mighty Current. He was taken away from his home in
Pattaya, Thailand by an unknown man on 17 October 2015. Gui had written some 200 books during his ten years as author/publisher. He kept his movements to himself and his communications routed, and his work projects were also shrouded in secrecy. Gui had not set foot inside the PRC for a long period – he never attended to his father when he was ill, and did not return upon his death. It is known that his home in Thailand was later searched by four Chinese men, who attempted to seize Gui's computer. A manager from the estate where Gui lived, in an effort to contact Gui, dialled the number that last called her regarding Gui, to be told by
a taxi driver that the four men, who had left the telephone in the taxi, wanted to go to a border town in Cambodia. He was last heard from on 6 November when he called his wife to tell her that he was safe but was unwilling to reveal his whereabouts. Gui's family contacted the Swedish embassy, and the Swedish police filed a report through Interpol, but
the Guardian, noting that the military junta was becoming increasingly accommodating to Chinese demands, observed that the Thais had done little to advance the case. The Thai authorities have no record of him leaving the country. Gui was a board member of Independent Chinese PEN Centre in 2014.
Lam Wing-kee (, age ), the founder of Causeway Bay Books, went missing since 24 October 2015. He habitually spent long hours at the bookshop and occasionally slept there. His wife filed a missing persons report with the police on 5 November and his family received a telephone call from him several hours later; he refused to reveal his whereabouts. When filing the police report, they were referred to the
Immigration Department, who said it was against privacy policy to reveal a person's records of entry and exit of Hong Kong without the subject's permission. However, legislator
James To said this was a reasonable request that was exempt from privacy policy. Police followed up on his case once, asking whether they had heard from him. His family allege that upon learning that he had contacted his family, the officer who called them informed that the case would be closed as resolved.
Cheung Chi-ping (, age ), a manager of Mighty Current, was taken away from his wife's home in
Fenggang, Dongguan by at least a dozen men in plainclothes.
Lee Bo (aka
Paul Lee, , age ), was a British citizen and the husband of Sophie Choi, who is in turn one of the three shareholders of Mighty Current. Lee regularly helped out in the bookstore. Lee Bo's wife has written a column for 20 years under the pen name of Syu Fei at
Ta Kung Pao – owned by the
Liaison Office; Lee worked at
Joint Publishing until he started work at the bookstore. Since the disappearances of four of his colleagues, he had been doing anonymous interviews with
BBC and various media. After the arrest of Yiu Man-tin and the disappearance of three of his colleagues, Lee went on record to say that their motive was purely economic, and that not setting foot in the mainland was the cost to bear for being in the publishing business. Lee was last seen on 30 December 2015, while delivering books in
Chai Wan to a certain unknown client. Choi, who had been expecting Lee home for dinner at around 7.15 pm on 30 December, raised the alarm when he failed to return home. Lee had apparently received an order for about ten books from a new customer and had arranged to hand them over in person that night. He descended his building in a lift with at least eight other people at around 6 pm, and witnesses saw him being pushed by a group of men into a minivan, which sped away the moment he was securely on board. Choi, Lee Bo's wife, later received a telephone call from him from a Shenzhen number. Uncharacteristically speaking in
Mandarin Chinese and apparently with someone whispering over his shoulder, Lee said that he had to go to the mainland on urgent business and that he would not be back home for some time. He assured her that he was well but assisting with investigations. His wife was told to be discreet. The Immigration Department has no record of Lee having left Hong Kong, and Hong Kong does not have any
extradition agreement with the PRC. The fact that his
home return permit was left at home led many to fear that he may have somehow been abducted by the mainland
public security bureau and
renditioned to
Shenzhen. His disappearance is the only known disappearance that occurred in Hong Kong territory, and thus sparked even more concern on whether the integrity of "one country, two systems" is being maintained. ==Reactions to Lee Bo's disappearance==