First gold shipment from Talang Santo expected this week
Tuesday, August 5 2014 - 02:26 AM WIB
ASX-listed Kingsrose Mining Limited (KRM) said Tuesday that the first shipment of gold and silver dore from the Talang Santo Mine in southern Sumatra is scheduled to be completed this week.
?This is the first shipment of dore since the final approval to commence production at the Talang Santo Mine was received on 9 July 2014,? the company said in a statement.
Kingsorse said that approximately 2,000 ounces of gold and 5,650 ounces of silver will be shipped subject to final assay at the refinery. This figure does not include gold and silver in circuit (GIC).
A total of 5,012 tons at an average head grade of 10.9 g/t and 31 g/t Ag have been processed and reconciled to 31 July 2014, with the mill currently running at an average throughput of 300 tons per day. This will progressively increase to the 380 tpd nameplate capacity over the coming months in line with the increase in mine production, the statement explained.
Head grades have progressively increased and individual days have exceeded 12 g/t Au as the circuit and ore feed blends continue to be balanced following the initial build-up of GIC. A key outcome has been the metallurgical recoveries which are currently returning 97 percent for gold and 92 percent for silver, both above previous test work.
The company said operations at the Talang Santo Mine are focused on the setup of additional sub levels, rises and ore passes required to commence stoping. Mining is being undertaken on both the 2 and 3 Levels in the Hanging Wall and Mawi veins, and the Splay vein off the 3 Level. This work is aimed at matching mine production to the current mill capacity over the next few months.
A number of process plant initiatives aimed at circuit optimization and cost savings are also being trialled over this initial period. These include running the SAG mill stand alone to achieve required grind size without the need to parallel the ball mills, with the required specifications being achieved at 65% power draw on the mill.
?Trials on thickening leach feed are also underway, which, if successful, will reduce reagent costs,? Kingsrose said.
Editing by Reiner Simanjuntak