South Africa-based Royal Bafokeng Platinum (RBPlat) said the $992m expansion of its new Styldrift mine could be delayed by six months due to issues with shaft hoisting.
The company encountered poor ground conditions in the main shaft loading box area and was also issued with a section 54 notice after an acetylene bottle fell down the services shaft.
RBPlat said in a statement: "Revision of the project schedule to mitigate the impact of this constraint has resulted in the main shaft commissioning and subsequent ramp-up being delayed.
"The main shaft will now be commissioned during the second quarter of 2015 (previously scheduled for the first quarter of 2015) with start of ramp-up occurring in the first quarter of 2016 (previously scheduled for the third quarter of 2015)."
The project is currently 78 days behind schedule and around 48% complete.
Meanwhile, the company also reported that its Bafokeng Rasimone Platinum Mine (BRPM) phase three project has moved ahead of schedule and is 69% complete against its target of 63%.
Under the BRPM project, the company extended the north shaft Merensky decline system and associated infrastructure from level ten to level 15.
RBPlat said: "The project remains below budget, with expenditure for the quarter amounting to R55.3m and R722.6m for the project to date."