Gold Road Resources has unveiled its 2025 guidance and three-year production outlook for the Gruyere operation in Western Australia, confirming sustainable mine production through to 2032.
Gruyere, a 50–50 joint venture between Gold Road and Gold Fields, has set its 2025 annual guidance to 325,000–355,000 ounces (oz) at an all-in sustaining cost (AISC) of $2400–2600 per ounce, following a record-breaking December 2024 quarter.
“The annualised increase in production will be achieved now that the mining fleet is in the position to access the entire ore body within the State 4 pit and, as a consequence, fill the process plant with higher grade ore,” Gold Road said.
“Limited blending with lower grade oxide ore stockpiles is planned to optimise the performance of the milling circuit. Consequently, the average grade of the ore processed will be slightly below the average ore grade.”
Gruyere’s three-year production outlook stands at 335,000–375,000oz of gold, with the amount expected to be delivered by higher mill head grades and improving plant throughput rates. Gruyere is expected to deliver two million ounces (Moz) in 2026.
“Over the past three years, production capability at Gruyere has improved as a result of increased plant throughput, supported by the installation of a third pebble crushing circuit in late 2023, with further plant improvements planned in 2025,” Gold Road said.
“Plant throughput in 2025 targets approximately 9.5Mt (million tonnes), with an extended shutdown currently scheduled for the second half of 2025 to upgrade conveyors in the pebble crushing circuit, together with other upgrades in the grinding circuit.”
The outlook follows Gold Road increasing Gruyere’s total open-pit ore reserve to 83Mt at 1.29 grams per tonne of gold for 3.45Moz last week.
A drilling and preliminary underground review completed last year by SRK supported the commencement of deep drilling to assess potential for a future underground mine that could extend Gruyere well beyond 2032.
To test this potential, Gold Road will carry out a 60,000m diamond drilling program to test the ore body to a nominal depth of 1200m below surface and infill drill the upper portions of the resource within the top 400 vertical metres of the conceptual underground mining area.
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