"why else would he change the name of copperstone mine to Jerome copper mining?"
To hide the name of the asset so that future plays cannot be tied to him or he intends to sell the asset from underneath the new company IMO
You should be able to look up all his US listed properties here, make sure you uncheck the yellow abandoned mine box. Once you ID the mine, you can get very detailed information on man hours and citations, operator history.
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