BRIEF-Southern Copper Says Striking Workers Voted Union Representation By Federación Nacional De Sindicatos Independientes

* SOUTHERN COPPER - STRIKING WORKERS OF SAN MARTIN MINE OF ITS UNIT, INDUSTRIAL MINERA MEXICO S. A. DE C.V. HAD, BY A MAJORITY, VOTED TO ELECT UNION REPRESENTATION BY FEDERACIÓN NACIONAL DE SINDICATOS INDEPENDIENTES