Amazing. I’m so happy to hear they were saved. I always prepare for bad news when I hear about a mine incident in any country. I think China has far more mining accidents than anywhere(and probably more miners, actually).
Wow, that’s amazing. I wouldn’t have expected so many to survive for that long.
And then, rather sadly, a mine explosion in the US has killed 6(at least). 
http://news.yahoo.com/s/ap/20100405/ap_on_bi_ge/us_mine_explosion