The company estimates production from operations at the chrome and platinum recovery plant at Hernic's ferrochrome mine will exceed 25% growth compared to the third quarter.
It also reassured investors that it has taken action to address a tailings spill at the plant on 29 December.
The spill had caused a V-shaped failure of the side wall of compartment 2 of the tailings dam but this was resealed on the same day.
The spillage was also contained on the adjacent property, which was previously used as an opencast mining area.
Clean-up of the spill has begun and Jubilee expects to resume depositing of final processed tailings in compartment 2 before the end of the month.
Compartment 2 of the tailings dam was used for depositing the final chrome and platinum processed tailings from Jubilee's Hernic project operation.
In the meantime Jubilee has been using compartment 1 of the tailings dam for depositing the final processed tailings.
“Jubilee will continue operating its PGM processing plant and will reduce throughput only during the interim period by approximately 30% to allow Hernic to fully restore compartment 2,” it said.