Name of the Mine
Lindero mine.

Location  
Salta, Argentina.

Mine Owner/s  
Mansfield Minera, 100%-owned by Fortuna Silver Mines.

Brief Description  
The Lindero property contains two known porphyry gold/copper deposits – the Lindero deposit, the focus of current mining activities at the Lindero mine and the Arizaro deposit, which is located 3.2 km south-east of the Lindero deposit.

Brief History 
Fortuna acquired the fully permitted, shovel-ready development-stage Lindero project in July 2016. Over 2017, the miner optimised the feasibility study and made a positive construction decision in September 2017. Mass earthmoving activities began in 2018, and the mine's first gold pour occurred on October 20, 2020.

Primary Metals/Minerals  
Gold.

Secondary Metals/Minerals  
Copper.

Geology/Mineralisation  
The Lindero deposit is a gold porphyry system hosted within a series of diorite to monzonite porphyritic stocks that intrude coarse-grained Ordovician granites and Early Tertiary red bed sandstones. Mineralisation forms an inward plunging semicircular shape of about 600 m in diameter and extends to a drill-tested depth of 600 m. Gold/copper mineralisation shows a strong relationship to lithology, potassium-feldspar alteration, and stockwork veining.

Reserves  
Total proven and probable reserves as at December 31, 2022, were estimated at 79.22-million tonnes grading 0.57 g/t gold and 0.1% copper.

Resources  
Total measured and indicated resources as at December 22, 2022, were estimated at 29.45-million tonnes grading 0.42 g/t gold and 0.1% copper. Inferred resources were estimated at 24.17-million tonnes grading 0.47 g/t gold and 0.11% copper.

Type of Mine
Openpit.

Mining Method  
Conventional heap-leaching.

Major Infrastructure/Equipment  
Mine infrastructure includes: access roads; power connection and supply from diesel generators to site facilities; process water supply and distribution, including a fire water system; a potable water system; a sewage system; project buildings; adsorption, desorption and recovery process area/building; a sulphidisation, acidification, recycling, and thickening process area/building; an agglomeration process area/building; a refinery building; a reagent storage; a process shop; chemical and metallurgic laboratory buildings; a mine truck shop; a light vehicles shop; a crushing plant shop; a guard house; a dispatch office; an infirmary; a general warehouse; liquefied petroleum gas and diesel fuel storage systems; explosives storage; personnel camps for construction and operations, including a dining and recreation area, and a laundry building; and miscellaneous site services such as security, first aid and communications.

The Lindero mine’s processing facilities include a conventional three-stage crushing plant, an agglomerator, and a permanent leach pad that is loaded using grasshoppers and a radial stacker.

Prospects  
Fortuna is conducting brownfield exploration at the mine.

Contact Details
Fortuna Silver Mines
Tel +1 604 484 4085
Email info@fortunasilver.com

Sources
Fortuna Silver Mines. Website: https://fortunasilver.com/
Fortuna Silver Mines. Technical Report: Lindero mine and Arizaro project, Salta, Argentina (December 31, 2022).
Fortuna Silver Mines. Annual information form for the fiscal year ended December 31, 2022 (March 28, 2023).