Luo Huining, director of the Liaison Office of the Central People’s Government in the HKSAR, delivers a keynote speech at a high-level seminar on the relationship between the Communist Party of China and the “one country, two systems” principle at the Hong Kong Convention and Exhibition Centre on June 12, 2021. (EDMOND TANG / CHINA DAILY)

Hong Kong Chief Executive Carrie Lam Cheng Yuet-ngor delivers a speech at a high-level seminar on the relationship between the Communist Party of China and the “one country, two systems” principle at the Hong Kong Convention and Exhibition Centre on June 12, 2021. (EDMOND TANG / CHINA DAILY)

Leung Chun-ying, vice-chairman of the National Committee of the Chinese People's Political Consultative Conference and former chief executive of the HKSAR, delivers a speech at a high-level seminar on the relationship between the Communist Party of China and the “one country, two systems” principle at the Hong Kong Convention and Exhibition Centre on June 12, 2021. (EDMOND TANG / CHINA DAILY)

Brave Chan Yung (1st left), Hong Kong deputy to the National People’s Congress, Lau Siu-kai (2nd left), professor emeritus of sociology at the Chinese University of Hong Kong and vice-president of the Chinese Association of Hong Kong and Macao Studies, and Elsie Leung Oi-sie (2nd right), Hong Kong's former secretary for justice and former deputy director of the Hong Kong Basic Law Committee of the NPC Standing Committee, join a panel discussion moderated by Wang Songmiao (1st right), secretary-general of the Liaison Office of the Central People’s Government in the HKSAR, during a seminar on the relationship between the Communist Party of China and the “one country, two systems” principle at the Hong Kong Convention and Exhibition Centre on June 12, 2021. (EDMOND TANG / CHINA DAILY)

(From left) Brave Chan Yung, Hong Kong deputy to the National People’s Congress, Elsie Leung Oi-sie, Hong Kong's former secretary for justice and former deputy director of the Hong Kong Basic Law Committee of the NPC Standing Committee, Liu Guangyuan, commissioner of the Ministry of Foreign Affairs of China in the HKSAR, Luo Huining, director of the Liaison Office of the Central People’s Government in the HKSAR, Leung Chun-ying, vice-chairman of the National Committee of the Chinese People's Political Consultative Conference and former chief executive of the HKSAR, Tung Chee-hwa, vice-chairman of the National Committee of the Chinese People's Political Consultative Conference and former Chief Executive of the HKSAR, Hong Kong Chief Executive Carrie Lam Cheng Yuet-ngor, Zheng Yanxiong, head of the Office for Safeguarding National Security of the Central People’s Government in the HKSAR, Major General Chen Daoxiang, commander-in-chief of the Chinese People’s Liberation Army Hong Kong Garrison, and Lau Siu-kai, professor emeritus of sociology at the Chinese University of Hong Kong and vice-president of the Chinese Association of Hong Kong and Macao Studies, pose for a group photo at a seminar on the relationship between the Communist Party of China and the “one country, two systems” principle at the Hong Kong Convention and Exhibition Centre on June 12, 2021. (EDMOND TANG / CHINA DAILY)

A video about the development of the Chinese mainland and the Hong Kong Special Administrative Region over the past 100 years is played during the opening ceremony of the seminar at the Hong Kong Convention and Exhibition Centre on June 12, 2021. (EDMOND TANG / CHINA DAILY)