Beijing: China's National Health Commission (NHC) on Tuesday sent an expert team to Qixia in Shandong province to guide and assist the rescue mission for the trapped gold mine workers.
The blast took place on January 10, and 22 workers are trapped underground.
Tuesday's development comes after the trapped miners sent a note on Sunday, saying that 12 workers were still alive, while the state of the other 10 was unknown.
Read:|12 workers trapped week ago in China mine blast are alive
In a related development, China's National Mine Safety Administration has ordered a comprehensive inspection of the country's non-coal mines to forestall major accidents.
According to a directive issued by the administration, the campaign will last till the end of March, with efforts focusing on preventing the occurrence of severe accidents including collapses in mined-out areas and explosions.