"The press release by Zijin Mining refers to '..multiple roof-falling and rib-spalling in the eastern section of the [Kakula] mine,' Ivanhoe said.
"Ivanhoe Mines does not agree with this statement", it said.
"Preliminary indications suggest that seismic activity... resulted in a redistribution of forces underground and caused 'scaling', or rock falls, from the sidewalls of certain mining areas."
Ivanhoe had said on Tuesday that some mining operations had been suspended at the Kakula underground mine on Sunday.
The Kamoa-Kakula mining complex is Africa's biggest copper producer and one of the world's largest.
In Friday's update it added: "The operational teams are currently focused on safely repairing damage caused to the cables and pipework that support the underground pumping infrastructure."
The mine produced 437,000 tons last year.
Ivanhoe also disputed that, saying it would only be able to know whether production guidance would need to be changed after an investigation was completed.
