The blockade hit Penasquito's third-quarter production by some 11,000 gold ounces, 1.7 million silver ounces, 13.7 million pounds of lead and 22.8 million pounds of zinc,
The decision represents a blow to Italy's ruling coalition, which had hoped to dissuade the steel giant from pulling out of the contract, and will raise questions about the country's reliability as a partner for foreign investors.