Medical workers check the physical condition of a survivor of the gold mine explosion at a hospital in Yantai City, east China's Shandong Province, on Jan. 26, 2021. Eleven miners were rescued on Sunday after being trapped for two weeks, and they are receiving appropriate medical treatment in hospitals. (Xinhua/Wang Kai)

A survivor of the gold mine explosion is interviewed by journalists at a hospital in Qixia City, east China's Shandong Province, on Jan. 26, 2021. Eleven miners were rescued on Sunday after being trapped for two weeks, and they are receiving appropriate medical treatment in hospitals. (Xinhua/Wang Kai)

A survivor of the gold mine explosion expresses his gratitude at a hospital in Qixia City, east China's Shandong Province, on Jan. 26, 2021. Eleven miners were rescued on Sunday after being trapped for two weeks, and they are receiving appropriate medical treatment in hospitals. (Xinhua/Wang Kai)

A medical worker checks the physical condition of a survivor of the gold mine explosion at a hospital in Yantai City, east China's Shandong Province, on Jan. 26, 2021. Eleven miners were rescued on Sunday after being trapped for two weeks, and they are receiving appropriate medical treatment in hospitals. (Xinhua/Wang Kai)

A survivor of the gold mine explosion is interviewed by journalists at a hospital in Qixia City, east China's Shandong Province, on Jan. 26, 2021. Eleven miners were rescued on Sunday after being trapped for two weeks, and they are receiving appropriate medical treatment in hospitals. (Xinhua/Wang Kai)

A survivor of the gold mine explosion expresses his gratitude at a hospital in Yantai City, east China's Shandong Province, on Jan. 26, 2021. Eleven miners were rescued on Sunday after being trapped for two weeks, and they are receiving appropriate medical treatment in hospitals. (Xinhua/Wang Kai)