African Copper's subsidiary Messina Copper has resumed operations at its Mowana Mine in Botswana.
The operational team has mobilised a new mining contractor, and a metallurgical and engineering team from major shareholder ZCI has worked to recommission the site's concentrator.
The teething problems encountered during the restart of the plant, coming out of a period of extended care and maintenance, were quickly identified and remedied, the company said.
The feed grade delivered from the pit has been about 20% above the forecast feed grade of 1.2% copper.
All processing plant circuits have been brought back to operational status.
The average concentrate grade is 26% copper, which is about 12% above forecasts.