MONTEVIDEO, Uruguay–(BUSINESS WIRE)–Orosur Mining Inc. (“Orosur” or “the Company”) (TSX/AIM: OMI), the South America-focused gold producer, developer and explorer is pleased to provide an exploration and development progress update for its Uruguayan operations. HIGHLIGHTS Underground reserve increase in and around the San Gregorio West underground mine area (“SGW UG”) From November 31, 2016 to May 31, 2017, total production from SGW UG totaled 12,600 oz Current remaining San Gregorio undergro
