Zimplats Holdings (ASX:ZIM) reported mined volumes of 1.9 million tonnes in the December 2024 quarter, an 8% decrease from 2 million tonnes in the previous quarter, hampered by poor trackless mobile machinery availability and interruptions to power supply at the operations, according to a Thursday filing with the Australian Securities Exchange.
The 6E head grade for the quarter was 3.4 grams per tonne grade of gold, in line with the September quarter, the filing said.
Ores milled fell 8% quarter on quarter to 1.8 million tonnes from about 2 million tonnes due to lower ore supply and constrained operating capacity at the concentrator plants, the filing added.
The total operating cash costs increased by 3% to $139.6 million from roughly $135 million, influenced by higher power costs and timing differences in major engineering component replacements, according to the filing.