SANTIAGO, Chile--(BUSINESS WIRE)--Orosur Mining Inc. (“Orosur” or “the Company”) (TSX:OMI) (AIM:OMI), the South American-focused gold producer, developer and explorer is pleased to announce the results for the fiscal year ended May 31, 2015 (“FY15”). Highlights Gold production of 53,485 oz in line with guidance of 50,000 – 55,000 oz (FY14: 60,271). Cash operating costs US$912/oz (FY14: US$792/oz) in line with guidance of $850 – $950/oz. H2 cash operating costs of US$864/oz. All-In-Sustaining Co