Decision could have significant impact on the wireless industry, as it opens the door for disability claims from millions of workers who experience occupational exposures to operating antenna arrays.
“Any accident is one too many at Cintas, and we remain heartbroken over the loss of our friend and partner," said CEO Scott Farmer in response to heavy OSHA fines.
A team of mine-safety experts will review whether or not it is safe for rescue workers to return to underground rescue efforts, according to MSHA's Richard Stickler.
The work safety administration gave no reason for the collapse, but China Central Television said initial investigations showed the structure was unstable.
More than a week after the Utah mine collapse, crews were drilling a third hole in hopes of finding the men, who may have sought refuge near the back of the mine in search of air.