April 30 (Reuters) - Blackham Resources Ltd BLK.AX :
* MAR'19 QUARTERLY GOLD PRODUCTION OF 15,296OZ VERSUS 19,016OZ IN DEC'18 QUARTER
* FY19 PRODUCTION GUIDANCE IS REVISED TO 66-68KOZ AT AN AISC OF ABOUT A$1,700/OZ
* PRODUCTION OUTLOOK FOR SEP'19 QUARTER OF 19,000 OZ-23,000 OZ