Barrick's comments come on the heels of a report published this week, which claims its Tanzanian subsidiary has been under-reporting the amount of metal in its shipments to evade taxes.
Ore with 62% content in Qingdao lost $2.33 a tonne to close at $57.91, data from the Metal Bulletin shows, hitting a seven-month low and marking the commodity third consecutive weekly fall.
Ivanhoe Mines and Zijin each hold now an indirect 39.6% interest in the Kamoa-Kakula project, thought to be Africa's most significant deposit of the red metal ever found.