The share price of gold miner St Barbara stumbled on Friday after the company revised its production expectations for the Gwalia project for the 2020 financial year, while also raising the anticipated all-in sustaining costs for the operation.
The ASX-listed company on Friday said that near-term production from Gwalia will be impacted by strained infrastructure, as the remaining Gwalia extension project construction and raise boring programme was competing for constrained ventilation with the scheduled production and development activities.