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Integra Resources Increases Scope of Pre-Feasibility Study, Aiming at Larger Production Profile and Increased Silver Production at DeLamar, Pre-Feasibility Study Expected in Q4 2021
The Company has increased the scope of the Pre-feasibility Study (“PFS”), aiming at a 32,000 to 35,000 tonnes per day (“tpd”) heap leach facility and an 8,000 t
About this update from Integra Resources Corp
[{"type":"text","content":" The Company has increased the scope of the Pre-feasibility Study (“PFS”), aiming at a 32,000 to 35,000 tonnes per day (“tpd”) heap leach facility and an 8,000 to 10,000 tpd mill facility. The augmented scope and increased throughput at DeLamar, subject to on-going studies, is expected to result in a 50% or greater increase in gold and silver production profile over a longer time-frame relative to the 2019 Preliminary Economic Assessment (“PEA”) which showed 124,000 oz gold equivalent (“AuEq”) per year over 10 years. The larger milling scenario will accommodate additional unoxidized material from DeLamar that was excluded from the 2019 PEA and allow the Company to produce additional silver ounces. In the PEA, silver accounted for approximately 18% of the overall economics of the project; however, with a larger mill proposed in the PFS, the Company now anticipates a much greater percentage of project economics to be driven by higher silver recoveries and production. The Company’s Board of Directors recently met with Governor Brad Little of Idaho who expressed his support of mining in Idaho. The PFS remains scheduled for completion in Q4 2021. VANCOUVER, British Columbia, Oct. 06, 2021 (GLOBE NEWSWIRE) -- Integra Resources Corp. (“Integra” or the “Company”) (TSX-V: ITR; NYSE American: ITRG) is pleased to provide an update on the Company’s PFS which is expected to be completed in Q4 2021. As previously reported, the Company has been working on a series of trade-off studies to optimize both the heap leach and mill processing circuits. This work was aimed at incorporating a significant portion of the unoxidized resource from the DeLamar deposit which was excluded in the 2019 PEA and improving the silver recoveries. The results of column leach tests completed on Florida Mountain oxide and transition material in Q2 have indicated that 0.5 inch crush provides the most economic feed size for the Florida Mountain heap leach circuit. While column leach testing has recently commenced on samples for DeLamar, the Company sees scope to increase the heap leach circuit to between 32,000 and 35,000 tpd from the 27,000 tpd contemplated in the PEA. In addition, extensive metallurgical testing of the DeLamar unoxidized material has demonstrated that a portion of this resource can be processed through a larger mill with a similar flowshee...