Australia's St Barbara falls on Q1 gold sales drop
** St Barbara SBM.AX falls as much as 4.8% to A$0.50 ** Gold miner says Q1 gold sales totalled 11,738 ounces vs 14,711 ounces in Q4 FY25 ** Q1 gold production from Simberi gold mine in Papua New Guinea was 11,158 ounces vs 14,620 ounces in Q4 FY25 ** YTD, SBM surges 126.7% (Reporting by Roshan Thomas in Bengaluru) ((Roshan.Thomas@thomsonreuters.com;))