Hong Kong's former Chief Executive Leung Chun-ying arrives to vote during the election of Hong Kong's next Chief Executive, in Hong Kong, China, May 8, 2022. REUTERS/Lam Yik 

Hong Kong Chief Executive Carrie Lam, former Chief Executive Leung Chun-ying, and officials raise a toast on stage during an official reception marking the Chinese National Day in Hong Kong, China October 1, 2021. REUTERS/Lam Yik 

Hong Kong Chief Executive Carrie Lam delivers a speech on stage as former Chief Executive Leung Chun-ying looks on during an official reception marking the Chinese National Day in Hong Kong, China October 1, 2021. REUTERS/Lam Yik 

Hong Kong Chief Executive Carrie Lam and former Chief Executive Leung Chun-ying toast each other on stage during an official reception marking the Chinese National Day in Hong Kong, China October 1, 2021. REUTERS/Lam Yik 

Hong Kong Chief Executive Carrie Lam and former Chief Executive Leung Chun-ying stand beside their spouses, Lam Siu-por and Regina Tong, during a flag-raising ceremony marking the Chinese National Day in Hong Kong, China October 1, 2021. REUTERS/Lam Yik 

Hong Kong Chief Executive Carrie Lam stands beside former Chief Executive Leung Chun-ying during a flag-raising ceremony marking the Chinese National Day in Hong Kong, China October 1, 2021. REUTERS/Lam Yik 

Former Chief Executive of Hong Kong Leung Chun-ying attends Macau gambling tycoon Stanley Ho's funeral reception, in Hong Kong, China July 10, 2020. REUTERS/Tyrone Siu 

Director of China's Liaison Office in Hong Kong Wang Zhimin (4th L), Former Hong Kong Chief Executive Leung Chun-ying (5th L), Guangdong Governor Ma Xingrui (6th L), Hong Kong Chief Executive Carrie Lam (6th R), Former Hong Kong Chief Executive Tung Chee-hwa (5th R) and director of the Hong Kong and Macau Affairs Office Zhang Xiaoming (4th R), attend the opening ceremony of the Hong Kong Section of the Guangzhou-Shenzhen-Hong Kong Express Rail Link, in Hong Kong, China September 22, 2018. REUTERS/Tyrone Siu 

(L-R) Director of China's Liaison Office in Hong Kong Wang Zhimin, Former Hong Kong Chief Executive Leung Chun-ying, Guangdong governor Ma Xingrui, Hong Kong Chief Executive Carrie Lam, Former Chief Executive Tung Chee-hwa and director of the Hong Kong and Macau Affairs Office Zhang Xiaoming attend the opening ceremony of the Hong Kong Section of the Guangzhou-Shenzhen-Hong Kong Express Rail Link, in Hong Kong, China September 22, 2018. REUTERS/Tyrone Siu 

Hong Kong Chief Executive Leung Chun-ying, Chief Executive-elect Carrie Lam and other officials attend a flag raising ceremony on the 20th anniversary of the city's handover from British to Chinese rule, in Hong Kong, China July 1, 2017. REUTERS/Damir Sagolj 

Hong Kong Chief Executive Leung Chun-ying, Chief Executive-elect Carrie Lam and other officials attend a flag raising ceremony marking the 20th anniversary of the city's handover from British to Chinese rule, in Hong Kong, China July 1, 2017. REUTERS/Damir Sagolj 

Hong Kong Chief Executive Leung Chun-ying (3-L), Chinese President Xi Jinping (C), Chief Executive-elect Carrie Lam (3-R) sing during a variety show, as part of the celebration for the 20th anniversary of the city's handover from British to Chinese rule, in Hong Kong, China June 30, 2017. REUTERS/Tyrone Siu 

Hong Kong Chief Executive Leung Chun-ying (4-L), Chinese President Xi Jinping (C), Chief Executive-elect Carrie Lam (4-R) sing during a variety show, as part of the celebration for the 20th anniversary of the city's handover from British to Chinese rule, in Hong Kong, China June 30, 2017. REUTERS/Tyrone Siu 

Hong Kong Chief Executive Leung Chun-ying (L), Chinese President Xi Jinping (C), Chief Executive-elect Carrie Lam (R) sing during a variety show, as part of the celebration for the 20th anniversary of the city's handover from British to Chinese rule, in Hong Kong, China June 30, 2017. REUTERS/Tyrone Siu 

Hong Kong Chief Executive Leung Chun-ying (L), Chinese President Xi Jinping (2nd-L) and his wife Peng Liyuan (R) attend a variety show, as part of the celebration for the 20th anniversary of the city's handover from British to Chinese rule, in Hong Kong, China June 30, 2017. REUTERS/Tyrone Siu 

China's President Xi Jinping (R) shakes hands with Hong Kong's outgoing chief executive Leung Chun-ying during a banquet in Hong Kong, China June 30, 2017. REUTERS/Dale de la Rey/Pool 

China's President Xi Jinping and Hong Kong's outgoing Chief Executive Leung Chun-ying look at a demonstration by members of the Junior Police scheme during a visit at the scheme's Permanent Activity Center and Integrated Youth Camp in Hong Kong, China June 30, 2017. REUTERS/Justin Chin/Pool 

China's President Xi Jinping waves as he arrives with Hong Kong's outgoing Chief Executive Leung Chun-ying during a visit at the scheme's Permanent Activity Center and Integrated Youth Camp in Hong Kong, China June 30, 2017. REUTERS/Justin Chin/Pool 

China's President Xi Jinping gestures as Leung Chun-ying, Hong Kong's outgoing Chief Executive, looks on during a visit at the scheme's Permanent Activity Center and Integrated Youth Camp in Hong Kong, China June 30, 2017. REUTERS/Justin Chin/Pool 

China's President Xi Jinping gestures as Leung Chun-ying, Hong Kong's outgoing Chief Executive, looks on during a visit at the scheme's Permanent Activity Center and Integrated Youth Camp in Hong Kong, China June 30, 2017. REUTERS/Justin Chin/Pool 

China's President Xi Jinping and Hong Kong's outgoing Chief Executive Leung Chun-ying applaud during a meeting with members of the Hong Kong Police Force's Junior Police Scheme during a visit at the scheme's Permanent Activity Center and Integrated Youth Camp in Hong Kong, China, June 30, 2017. REUTERS/Justin Chin/Pool 

China's President Xi Jinping and Hong Kong's outgoing Chief Executive Leung Chun-ying give thumbs up as they pose for photographs with members of the Hong Kong Police Force's Junior Police Scheme during a visit at the scheme's Permanent Activity Center and Integrated Youth Camp in Hong Kong, China, June 30, 2017. REUTERS/Justin Chin/Pool 

China's President Xi Jinping waves to members of the Hong Kong Police Force's Junior Police Scheme as Leung Chun-ying, Hong Kong's outgoing Chief Executive, looks on during a visit at the scheme's Permanent Activity Center and Integrated Youth Camp in Hong Kong, China June 30, 2017. REUTERS/Justin Chin/Pool 

China's President Xi Jinping and Hong Kong's outgoing Chief Executive Leung Chun-ying give thumbs up as they pose for photographs with members of the Hong Kong Police Force's Junior Police Scheme during a visit at the scheme's Permanent Activity Center and Integrated Youth Camp in Hong Kong, China, June 30, 2017. REUTERS/Justin Chin/Pool 

Outgoing Hong Kong Chief Executive Leung Chun-ying and Chinese President Xi Jinping meet Steve Hui Chun-tak, Assistant Commissioner of Police, Information Systems, Hong Kong Police Force at the Hong Kong Police Force's Junior Police Call Permanent Activity Centre and Integrated Youth Training Camp, Pat Heung, New Territories, Hong Kong, China, 30 June 2017. REUTERS/Alex Hofford/Pool 

Outgoing Hong Kong Chief Executive Leung Chun-ying and Chinese President Xi Jinping meet Chinese mainland-born Hong Kong Police officer Hip Kin-man (R) at the Hong Kong Police Force's Junior Police Call Permanent Activity Centre and Integrated Youth Training Camp, Pat Heung, New Territories, Hong Kong, China, 30 June 2017. REUTERS/Alex Hofford/Pool 

Members of the Hong Kong Police Force Junior Police Scheme, outgoing Hong Kong Chief Executive Leung Chun-ying and Chinese President Xi Jinping look at an architectural model of the Hong Kong Police Force's Junior Police Call Permanent Activity Centre and Integrated Youth Training Camp, Pat Heung, New Territories, Hong Kong, China, 30 June 2017. REUTERS/Alex Hofford/Pool 

Chinese President Xi Jinping waves as he arrives with Leung Chun-ying, Hong Kong's outgoing chief executive during a visit at the Hong Kong Police Force's Junior Police Scheme Permanent Activity Center and Integrated Youth Camp in Hong Kong, China June 30, 2017. REUTERS/Justin Chin/Pool TPX IMAGES OF THE DAY 

Members of the Hong Kong Police Force Junior Police Scheme, outgoing Hong Kong Chief Executive Leung Chun-ying nd Chinese President Xi Jinping chat at the Hong Kong Police Force's Junior Police Call Permanent Activity Centre and Integrated Youth Training Camp, Pat Heung, New Territories, Hong Kong, China, 30 June 2017. REUTERS/Alex Hofford/Pool 

Members of the Hong Kong Police Force Junior Police Scheme, outgoing Hong Kong Chief Executive Leung Chun-ying and Chinese President Xi Jinping chat at the Hong Kong Police Force's Junior Police Call Permanent Activity Centre and Integrated Youth Training Camp, Pat Heung, New Territories, Hong Kong, China, 30 June 2017. REUTERS/Alex Hofford/Pool 

A member of the Hong Kong Police Force Junior Police Scheme bows to outgoing Hong Kong Chief Executive Leung Chun-ying and Chinese President Xi Jinping at the Hong Kong Police Force's Junior Police Call Permanent Activity Centre and Integrated Youth Training Camp, Pat Heung, New Territories, Hong Kong, China, 30 June 2017. REUTERS/Alex Hofford/Pool 

Outgoing Hong Kong Chief Executive Leung Chun-ying (C) listens as Chinese President Xi Jinping (R) gestures near an exit sign at the Hong Kong Police Force's Junior Police Call Permanent Activity Centre and Integrated Youth Training Camp, Pat Heung, New Territories, Hong Kong, China, 30 June 2017. REUTERS/Alex Hofford/Pool 

Outgoing Hong Kong Chief Executive Leung Chun-ying (C) and Chinese President Xi Jinping (R) listen to a presentation by an exit sign at the Hong Kong Police Force's Junior Police Call Permanent Activity Centre and Integrated Youth Training Camp, Pat Heung, New Territories, Hong Kong, China, 30 June 2017. REUTERS/Alex Hofford/Pool 

Chinese president Xi Jinping, Hong Kong Chief Executive Leung Chun-ying and Chief Executive-elect Carrie Lam clap after watching two Chinese opera performers during a visit to Hong KongÕs West Kowloon district, in Hong Kong June 29, 2017. REUTERS/Vincent Yu/Pool 

China's President Xi Jinping shakes hands with outgoing Hong Kong Chief Executive Leung Chun-ying during a meeting in a hotel in Hong Kong, China, June 29, 2017. REUTERS/Dale De La Rey/Pool TPX IMAGES OF THE DAY 

China's President Xi Jinping speaks with outgoing Hong Kong Chief Executive Leung Chun-ying (not pictured) during a meeting in a hotel in Hong Kong, China, June 29, 2017. REUTERS/Dale de la Rey/Pool 

China's President Xi Jinping speaks with outgoing Hong Kong Chief Executive Leung Chun-ying during a meeting in a hotel in Hong Kong, China, June 29, 2017. REUTERS/Dale de la Rey/Pool 

China's President Xi Jinping speaks with outgoing Hong Kong Chief Executive Leung Chun-ying during a meeting in a hotel in Hong Kong, China, June 29, 2017. REUTERS/Dale de la Rey/Pool 

China's President Xi Jinping shakes hands with outgoing Hong Kong Chief Executive Leung Chun-ying during a meeting in a hotel in Hong Kong, China, June 29, 2017. REUTERS/Dale De La Rey/Pool 

China's President Xi Jinping waits to meet with outgoing Hong Kong Chief Executive Leung Chun-ying at a hotel in Hong Kong, China, June 29, 2017. REUTERS/Dale De La Rey/Pool 

China's President Xi Jinping waits to meet with outgoing Hong Kong Chief Executive Leung Chun-ying at a hotel in Hong Kong, China, June 29, 2017. REUTERS/Dale De La Rey/Pool 

Chinese President Xi Jinping is followed by outgoing Hong Kong Chief Executive Leung Chun-ying and Chief Executive-elect Carrie Lam (back L) upon Xi's arrival in Hong Kong, China June 29, 2017. REUTERS/Bobby Yip 

Chinese President Xi Jinping (C) speaks after his arrival at the airport in Hong Kong, China, as Hong Kong Chief Executive-elect Carrie Lam (first row, L) and Hong Kong Chief Executive Leung Chun-ying (first row, 2nd L) listen ahead of celebrations marking the city's handover from British to Chinese rule June 29, 2017. REUTERS/Bobby Yip TPX IMAGES OF THE DAY 

Chinese President Xi Jinping speaks after his arrival at the airport in Hong Kong, China, as Hong Kong Chief Executive-elect Carrie Lam and Hong Kong Chief Executive Leung Chun-ying listen ahead of celebrations marking the city's handover from British to Chinese rule, June 29, 2017. REUTERS/Bobby Yip 

A boy depicts Hong Kong Chief Executive Leung Chun-ying during the Bun Festival parade at Cheung Chau island in Hong Kong, China May 3, 2017. REUTERS/Bobby Yip 

Indonesian President Joko Widodo (2nd L) and Hong Kong Chief Executive Leung Chun-ying (2nd R) look on as Minister for Foreign Affairs of Indonesia Retno L.P. Marsudi (L) and Hong Kong Secretary for Labour Stephen Sui (R) sign a memorandum of understanding at the Government House in Hong Kong, China May 1, 2017. REUTERS/Jerome Favre/POOL 

Indonesian President Joko Widodo (L) meets Hong Kong Chief Executive Leung Chun-ying at the Government House in Hong Kong, China May 1, 2017. REUTERS/Jerome Favre/Pool 

Indonesian President Joko Widodo is welcomed by Hong Kong Chief Executive Leung Chun-ying at the Government House in Hong Kong, China May 1, 2017. REUTERS/Jerome Favre/POOL 

Indonesian President Joko Widodo is welcomed by Hong Kong Chief Executive Leung Chun-ying at the Government House in Hong Kong, China May 1, 2017. REUTERS/Jerome Favre/POOL 

Indonesian President Joko "Jokowi" Widodo (2nd L) and Hong Kong Chief Executive Leung Chun-ying (2nd R) pose with guests after attending a forum in Hong Kong, China May 1, 2017. REUTERS/Bobby Yip 

Newly elected Chief Executive Carrie Lam arrives to meet current leader Leung Chun-ying in Hong Kong, China March 27, 2017. REUTERS/Bobby Yip 

Newly elected Chief Executive Carrie Lam arrives to meet current leader Leung Chun-ying in Hong Kong, China March 27, 2017. REUTERS/Bobby Yip 

Newly elected Chief Executive Carrie Lam (L) walks with current leader Leung Chun-ying after their meeting in Hong Kong, China March 27, 2017. REUTERS/Bobby Yip 

Newly elected Chief Executive Carrie Lam (R) and current leader Leung Chun-ying speak after their meeting in Hong Kong, China March 27, 2017. REUTERS/Bobby Yip 

Newly elected Chief Executive Carrie Lam (R) meets current leader Leung Chun-ying in Hong Kong, China March 27, 2017. REUTERS/Bobby Yip 

China's President Xi Jinping shakes hands with Hong Kong Chief Executive Leung Chun-ying, newly elected Vice Chairman of the National Committee of Chinese People's Political Consultative Conference (CPPCC), during the closing session of the CPPCC at the Great Hall of the People in Beijing, China, March 13, 2017. REUTERS/Jason Lee 

China's Premier Li Keqiang shakes hands with Hong Kong Chief Executive, vice-chairman of the National Committee of Chinese People's Political Consultative Conference (CPPCC), Leung Chun-ying, during the closing session of the CPPCC at the Great Hall of the People in Beijing, China, March 13, 2017. REUTERS/Jason Lee 

China's President Xi Jinping shakes hands with Hong Kong Chief Executive, vice-chairman of the National Committee of Chinese People's Political Consultative Conference (CPPCC), Leung Chun-ying, during the closing session of the CPPCC at the Great Hall of the People in Beijing, China, March 13, 2017. REUTERS/Jason Lee TPX IMAGES OF THE DAY 

Photographers take pictures of Hong Kong Chief Executive, vice-chairman of the National Committee of Chinese People's Political Consultative Conference (CPPCC), Leung Chun-ying, as he attends the closing session of the CPPCC at the Great Hall of the People in Beijing, China, March 13, 2017. REUTERS/Jason Lee 

Hong Kong Chief Executive, vice-chairman of the National Committee of Chinese People's Political Consultative Conference (CPPCC), Leung Chun-ying, attends the closing session of the CPPCC at the Great Hall of the People in Beijing, China, March 13, 2017. REUTERS/Jason Lee