Hallo Uwe,
so wie ich das verstanden habe, hat der Minenbetreiber die Produktion bis auf weiteres wegen Hochwasser eingestellt.
Siehe:
Mexican mining company Penoles said on Tuesday it had suspended operations at its Naica mine in the northern state of Chihuahua "for an undefined period" due to force majeure following serious flooding there several months ago . Penoles suspends operations at Naica mine until further notice. Naica is Mexico's second-richest lead mine, according to Penoles' website. Naica in 2014 produced 19,694 tons of lead, 15,399 tons of zinc and 1.9 million ounces of silver representing 25 percent, 6 percent and 3 percent respectively of consolidated mining output
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Reinhold