The operations recovered 2,715 items, including 64 Grade I relics and 140 classified as Grade 2, which are potentially worth billions of yuan, although officials declined to provide accurate figures for fear of alerting thieves.
Japanese Emperor Akihito expressed his sincere congratulations to Xi's election as president and his wish for Xi's good health and China's prosperity.
Pakistani President Mamnoon Hussain said Xi's election shows that the Chinese people are confident of his brilliant leadership. China has made remarkable achievements in the past five years, and Xi's outstanding contribution to world peace and development has been widely praised, he said.
Wang Xiaotao, the agency's chief, also attended. He was named the head of theagency, the first of its kind in the country's history, earlier this month.
"I believe that as long as more than 1.3 billion Chinese people keep carrying forward this great spirit of pursuing dreams, we can and will realize the great rejuvenation of the Chinese nation," he said.