Processing Alternatives Advanced For High-Grade Mill Material At Beartrack-Arnett

TORONTO - Revival Gold Inc. reported on the third stage of metallurgical testing on mill (or sulphide) material from the Beartrack-Arnett Gold Project located in Lemhi County, Idaho. The objective of this testing program was to evaluate the flotation performance of the high-grade component of sulphide material at Beartrack-Arnett and assess its potential to yield a salable concentrate.

The composite sample was assembled from 21 individual samples of core to mimic the tenor of high-grade mill material at Beartrack-Arnett. Results demonstrate gold recoveries of 93% to concentrate from a composite sample grading 4.6 g/t gold. A concentrate grade of 50 g/t gold was achieved with a relatively coarse particle grind size (P80) of 150 µm and a resulting mass pull of just 8.9%. The corresponding sulphide sulphur grade of the concentrate was 23% with a sulfide sulfur recovery of 98%.

“Revival Gold remains focused on continuing to expand and prepare the open pit heap leach restart phase at Beartrack-Arnett,” said Hugh Agro, President & CEO. “Meanwhile, work continues to advance and de-risk a potential mill phase for the Project. Today’s announced test results support a potential mill development concept that would involve the production and sale of concentrate rather than the construction of a complete onsite gold production facility for the Project. This approach could greatly simplify and reduce the potential capital cost of developing a second phase mill operation at Beartrack-Arnett.”

Current mill material base case processing assumptions detailed in Revival Gold’s National Instrument 43-101 Technical Report on the Beartrack-Arnett Heap Leach Project. The program involved the following steps: 1) Analysis of lithology, grade, depth, and oxidation level to guide composite sample selection. 2) Preparation of a composite sample from 21 samples of coarse reject material from Joss area core drilled during 2022. 3) Batch scale variability testing to establish the preferred grind, rougher kinetic and cleaner flotation testing conditions, and reagent dosages. 4) Locked cycle flotation testing with 7 cycles of cleaner tailings recycling.

Results are considered preliminary. Further metallurgical testing on high-grade mill material across various areas of the known deposit has been recommended by KCA to help determine potential key operating criteria and economics for a concentrate shipping alternative for Beartrack-Arnett mill material.