Atacama Copper Corporation report results from the first five holes of a 10,000- metre diamond drilling program at its wholly-owned Cristina precious metals project in southwestern Chihuahua State, Mexico. The first five holes represent 1,347 metres of drilling of a 40-50-hole drill program. The Cristina project consists of multiple outcropping quartz veins that are frequently greater than 10 metres in width and extend for at least a five-kilometre strike length.

Four parallel mineralized vein zones have been mapped and sampled to date, with most of the existing mineral resource estimate at Cristina contained within the Guadalupe vein. Highlights of the five holes reported here, all from the central portion of the main Guadalupe vein system, include: 10.65 g/t AuEq over 7.8 m estimated true width (1.55 g/t Au, 528 g/t Ag, 2.38% Zn, 0.54% Pb and 0.19% Cu) in hole ACD24-221, including: 19.88 g/t AuEq over 4.8 m estimated true width (2.45 g/t Au, 1,041 g/t Ag, 3.95% Zn, 0.93% Pb, and 0.34% Cu) 9.40 g/t AuEq over 2.2 m estimated true width (1.86 g/t Au, 523 g/t Ag, 0.15% Zn, 0.32 % Pb, 0.05% Cu) in hole ACD24-222 The 2.2 m wide intercept occurs within a broader mineralized zone measuring 2.02 g/t AuEq over 29.0 m estimated true width (0.57 g/t Au, 90 g/t Ag, 0.22% Zn, 0.12% Pb, 0.02% Cu). 10.48 g/t AuEq over 1.6 m estimated true width (6.18 g/t Au, 54 g/t Ag, 1.26% Zn, 0.09% Pb and 0.07% Cu) in hole ACD24-224 The 1.6 m wide intercept occurs within a broader mineralized zone measuring 1.87 g/t AuEq over 21.5 m estimated true width (1.12 g/t Au, 22.1 g/t Ag, 0.65% Zn, 0.09% Pb and 0.04% Cu).

All five holes reported here were drilled in the central portion of the Guadalupe vein system: ACD24-221 fills in a gap in the previous drilling and demonstrates vertical continuity of similar high-grade mineralisation over a vertical distance of over 250 metres starting at surface. This intercept is also expected to convert a zone of Inferred resource to Indicated as well as increasing the resource grade and ounces around the drill hole. ACD24-222 is a shallow hole with positive results which should increase the surrounding resource block grades and contained ounces, while potentially upgrading the resource classification in this area from Inferred to Indicated.

ACD24-223 demonstrates that mineralisation in the Guadalupe vein continues for nearly 200 meters below previous drilling and the base of the resource block model, with a total vertical extent in this area of over 450 metres from surface. ACD24-224 confirms and fills in an area of high-grade mineralisation and is expected to convert the surrounding resource blocks to Indicated while increasing the resource grade and ounces around the drill hole. ACD24-225 was another shallow hole on the margins of a high-grade shoot which better defines the location of a fault that drops down the higher-grade portion of the vein to the west of the fault.

The Cristina deposit is an epithermal to mesothermal vein system where the mineralisation is predominantly gold and silver, with lesser base metal values. At least four known parallel vein zones trend east-west to northeast-southwest and are hosted in an andesitic volcanic sequence which forms part of the Lower Volcanic Sequence of the Sierra Madre Occidental range. The andesites are intercalated locally with dacitic intrusions and related lava flows and breccias, and the sequence is in turn cut by andesitic and hornblende-plagioclase porphyry following fault trends.

In some areas the veins are covered by post-mineral rhyolite of the Upper Volcanic Sequence. An interesting aspect of the Cristina deposit is the apparent vertical extent of the mineralisation within the system. Mineralisation in outcrop occurs at surface at elevations up to 2,000 metres above sea level (masl), while the deepest zone of mineralisation intercepted by drilling is at an elevation of 900 masl, a vertical range of approximately 1,100 m. Cristina is similar to other active mines in the region including Fresnillo's San Julian and La Cienega mines, as well as First Majestic's Tayoltita/San Dimas mine.

The drill program is expected to continue over the next several months, with results released periodically as they are received and analyzed. The goal of targeting the higher-grade zones within the main Guadalupe Vein, as well as other high- grade veins in the area, is to both increase the size and the grade of the resource and demonstrate the underground resource potential at Cristina. The current, primarily open-pit mineral resource estimate comprises: Indicated resources of 17.5 Mt at 0.51 g/t gold, 33.8 g/t silver, 0.47% zinc, 0.19% lead and 0.04% copper (1.33 g/t AuEq grade), for a contained 752,000 gold-equivalent ounces.

Inferred resources of 19.0 Mt at 0.51 g/t gold, 27.5 g/t silver, 0.50% zinc, 0.19% lead and 0.05% copper (1.27 g/t AuEq grade), for a contained 777,000 gold-equivalent ounces. Mineral Resources are not Mineral Reserves and do not have demonstrated economic viability.