BUZZ-Primero Mining Corp: Mexican exports halted
** Canadian gold and silver miner's shares down about 7 pct at C$4.47; U.S.-listed shares down about 6 pct at $3.53
** Company says customs authorities suspended its import and export licenses in Mexico in May due to a discrepancy over its address
** Dundee Capital downgrades stock to "neutral" from "buy"; cuts PT to C$5.50 from C$6.25
** 13 of 16 brokerages rate stock "buy" or higher and 3 "hold"; their median PT is C$5.22
** Up to Monday's close, stock had fallen nearly 45 pct on the TSX and 53.5 pct on the NYSE in the last 12 months
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