The transfer of Hong Kong from Britain to China has led to a change in the city's laws to crack down on dissent.
It was 25 years ago that Hong Kong was handed over to China. It was his first visit to mainland China in over a year.
The Hong Kong people became masters of their own city after reunification with the motherland, and realized the idea of Hong Kong people administering Hong Kong with a high degree of autonomy.
The true democracy of Hong Kong began here.
The principle of "one country, two systems" was used when Hong Kong was handed over to China.
"For this kind of good system, there is no reason at all to change it," said the president, according to the news agency. It needs to be maintained over time.
The security law it implemented in 2020 to crack down on protesters and anyone who criticizes China has been accused of violating the agreement.
The pro-democracy protests that took place in the city disappeared after the new law took effect.
China has shut down independent newspapers over the last two years.
Taiwan's premier said on Friday that freedom and democracy have disappeared in Hong Kong since China regained control. Beijing claims that Taiwan is part of China, and has increased its military activity near the island recently.