The 79-year-old never expected when he was browsing the internet that day that he would uncover a piece of family history dating back some 140 years

In the interview, Lee said the Initiative-related cooperation in sectors such as infrastructure investments, trade and tourism can help further "integrate China into regional and international economic systems while greatly boosting the prosperity and development in other countries

"It was a picture I had never seen before and my instinct told me that the subjects could be my great grandparents," he told China Daily

"Besides, the Congolese government can adopt the most strict standards on pollution for the Chinese companies and the Chinese investors will consciously follow the rules and regulations set by the Congolese government, he said

Before they became major officials, dozens of years should have passed and they should have collected enough experience to tackle seemingly tough problems