Libertad Mine & Mill

The Libertad exploitation concession covers an area of 10,937 hectares and was granted by Ministerial Decree for a 40-year term in 1994. The Project also comprises the Buenaventura and Cerro Quiroz exploration concessions, which are contiguous with the Libertad exploitation concession and cover a total area of 4,600 hectares. The Project is located approximately 110 km east of the capital of Managua and is accessible by road.

Calibre has an extensive ongoing, multi-prong approach to all exploration activities. The Company is advancing a resource expansion and discovery drill program with multiple drill rigs operating across the Libertad concessions.

487,000 ozs Au

Probable Mineral Reserves

Refer to 2023 Mineral Reserves & Resources News Release here

602,000 ozs Au

Indicated Mineral Resources

520,000 ozs Au

Inferred Mineral Resources

Libertad Processing Plan

The Libertad processing plant can treat approximately 2.25 million tonnes per annum (tpa), and current gold recoveries are approximately 94% to 95% for a blend of spent ore and run of mine ("ROM") ore. Currently the mine is fed by ore trucked from the Limon, Pavon and Eastern Borosi gold mines as well ore mined near the mill at the Jabali underground mine. The Jabali underground mine uses a bottom-up sequenced long hole stoping mining method with unconsolidated backfill.

The Libertad mill currently has in excess of one million tonnes of surplus processing capacity and therefore benefits from satellites deposits within a 400km radius.

Calibre’s asset base includes multiple ore sources, 2.7 million tpa of installed mill capacity from two processing facilities ( Limon and Libertad), reliable in-country infrastructure, and favourable transportation costs. The Company will continue to optimize its consolidated mine and process plans as the Company progresses our “hub-and-spoke” approach to maximizing value from our integrated asset base.

Snapshot
LOCATION Central Nicaragua
OWNERSHIP 100%
METALS Gold
MINE

• Limon Mill Feed
• Pavon Norte and Pavon Central Open pits​​​​​​
• Jabali underground
HISTORICAL PRODUCTION 1.9Moz
Technical Reports

Eastern Borosi Project

Calibre owns 100% of the Eastern Borosi Gold-Silver Property (“EBP”), located in the northeastern Nicaraguan low-sulphidation, epithermal district that hosts numerous high-grade, gold-silver vein systems. The ore produced from the now operating Guapinol/Vancouver open pit mine is trucked to the Libertad Mine & Mill facility within the Libertad Mine Complex.

The 176 km2 Eastern Borosi land package consists of open pit and underground known resources including Riscos de Oro, East Dome, Blag and La Luna, in addition to the now operating, Guapinol/Vancouver open pit mine. These deposits consist of numerous low sulphidation gold-silver vein systems. Surrounding the Eastern Borosi project is a large 7,281 km2 land package also 100% owned by Calibre. The land package is prospective for porphyry, skarn and epithermal vein deposits, which include the Primavera and Cerro Aeropuerto deposits both of which contain an Inferred Mineral Resource.

Snapshot
LOCATION Northeast Nicaragua
OWNERSHIP 100%
METALS Gold
MINE Guapinol – Vancouver open pit
HISTORICAL PRODUCTION
MILL Ore trucked to Libertad mill
Technical Reports

Snapshot
LOCATION Northwest Nicaragua
OWNERSHIP 100%
METALS Gold
MINE Open Pit
• Pavon Norte
• Pavon Central
Technical Reports

Pavon Gold Mine

The Pavon property is located within the Natividad and Las Brisas exploration concessions totaling 31.5km2 located approximately 300 kms on paved highways from the Libertad processing facility, where the ore is trucked for milling. Since acquiring the asset in 2019 Calibre completed an initial open pit resource estimate, initiated and completed the Environmental Impact Assessment (“EIA”) for Pavon Norte, completed mine design and construction and began open pit mining and transporting to the Libertad processing plant. By implementing our ‘Hub-and-Spoke’ operating model and by developing the Pavon gold project, the Libertad Complex processing life has been significantly extended and is now expected to generate robust cash flows over several years.

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