Primero reports exploration upside

The TSX-listed stock of precious metals producer Primero Mining on Monday rose as much as 4% after it reported positive exploration results at its Black Fox mine, in Ontario, as well as at its San Dimas mine and the Lechugilla concession, in Mexico. Vancouver-based Primero reported that initial mining at the Deep Central zone at Black Fox generated 3 885 t of production ore grading 8.3 g/t gold, which is above the underground mine’s current reserve grade of 6.2 g/t gold.