Segovia Operations Mineral Reserves (effective September 30, 2023)

Category Tonnes (kt) Gold Grade (g/t) Contained Gold (koz)
Proven 1,515 12.25 597
Probable 2,017 11.16 723
Proven + Probable     1,320

Notes: Totals may not add due to rounding. Mineral reserves were estimated using a gold price of US$1,700 per ounce. The mineral reserve estimates utilized a gold cut-off grade of between 3.05 g/t and 3.40 g/t depending on mining area. The cut-off grade values were applied to vein grades diluted to a minimum mining height that varies according to the mining area. There are no known mining, legal, political, metallurgical, infrastructure, permitting, or other relevant factors that could materially affect the mineral reserve estimates. The mineral reserve estimates was prepared by the Aris Mining technical staff under the supervision of and reviewed by Inivaldo Diaz, CP, Vice President Technical Services of Aris Mining’s Colombia operations, who is a Qualified Person as defined by National Instrument NI 43-101.

Segovia Operations Mineral Resources (effective September 30, 2023)

Category Tonnes (Mt) Gold Grade (g/t) Contained Gold (koz)
Measured 4.1 14.31 1,893
Indicated 3.8 14.38 1,736
Measured + Indicated     3,629
Inferred 4.7 12.11 1,823

Notes: Mineral resources are not mineral reserves and do not have demonstrated economic viability. Mineral resource estimates are reported inclusive of mineral reserves. Totals may not add due to rounding. Mineral resources were estimated using a gold price of US$1,850 per ounce. The mineral resource estimates utilized a gold cut-off grade of between 2.80 g/t and 3.12 g/t depending on mineral resource area. The cut-off grade values were applied to vein grades diluted to a minimum height of one vertical metre. There are no known environmental, permitting, legal, title, taxation, socio-economic, marketing, political, or other relevant factors that could materially affect the mineral resource estimate. Mineral resource estimates were prepared under the supervision, or were reviewed by, Pamela De Mark, P.Geo, Senior Vice President Geology and Exploration of Aris Mining, who is a Qualified Person as defined by National Instrument NI 43-101.