Gold miner St Barbara has revised its production forecast at both its Gwalia and Simberi operations, in Western Australia and Papua New Guinea respectively.
The ASX-listed miner was now expecting Gwalia to produce between 235 000 oz and 240 000 oz in the full 2019, compared with the previous estimate of between 245 000 oz and 255 000 oz, while all-in sustaining cost estimates have increased from between A$930/oz and A$970/oz, to between A$980/oz and A$1 000/oz.