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Atacama Begins 10,000-metre Diamond Drilling Program at its Cristina Project, Chihuahua Mexico

Exploration Programs

Atacama Begins 10,000-metre Diamond

Drilling Program at its Cristina Project,

Chihuahua Mexico

Vancouver, British Columbia--(Newsfile Corp. - March 12, 2024) - Atacama Copper Corporation (TSXV:

ACOP) ("

Atacama

" or the "

Company

") is pleased to announce the start of a 10,000-metre diamond

drilling program at its wholly-owned Cristina precious metals project in southwestern Chihuahua State,

Mexico (Figure 1). The Cristina project consists of multiple outcropping quartz veins that are frequently

greater than 10 metre in width and extend for a currently known strike length of up to five kilometres. At

least four parallel mineralized vein zones have been mapped and sampled to date, however most of the

resource estimate reported here is contained within the Guadalupe vein (Figure 2).

Tim Warman, Atacama's CEO, commented "The drilling program that started this week is aimed at

better defining and expanding the known higher-grade zones within the Guadalupe and Los Ingleses vein

systems. While the current resource is largely contained within a single modeled open pit shell on the

Guadalupe vein, we believe that there is excellent potential to define a higher-grade underground

resource at Cristina. Previous drilling has encountered thick higher-grade zones in every vein system

tested to date, and this current round of drilling is aimed at better defining and expanding those zones."

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.

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 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.

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 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 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.

The program is expected to continue over the next several months. Results from the drilling program will

be released periodically as they are received and analyzed.

Figure 1- Cristina Project location map

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/7505/201215_783dfa64b4689808_001full.jpg

Figure 2- Existing and proposed drill holes, Guadalupe and Los Ingleses veins

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/7505/201215_783dfa64b4689808_002full.jpg

Qualified Person

Mr. Jacob W. Richey, P.E. of IMC is the Qualified Person responsible for the MRE. Details of the

Cristina MRE can be found in the Company's press release of October 30, 2023, and in the National

Instrument 43-101 compliant report titled "Technical Report on the Mineral Resource for the Cristina

Project" prepared for TCP1 and Atacama Copper by Independent Mining Consultants Inc., with an

effective date of January 1, 2023, and issue date of December 1, 2023. This report is available under

the Company's SEDAR profile at www.sedarplus.ca and on the Company's website.

Mr. Charlie Ronkos, MMSA is Atacama's EVP Exploration and the Qualified Person for the remaining

technical information disclosed in this release.

About Atacama Copper Corporation

Atacama Copper is a well-funded resource company adding value through the acquisition, exploration,

and development of copper and precious metals projects in the Americas. The company is carrying out

an aggressive drilling campaign at its Cristina precious metals project in Chihuahua Mexico, with the

goal of significantly expanding the existing mineral resource estimate. Drilling is also planned for the

Yecora copper project in Sonora Mexico. In Chile, the Placeton/Caballo Muerto project hosts several

untested porphyry copper targets situated between the large-scale Relincho and El Morro/La Fortuna

copper-gold deposits of the Nueva Union joint venture between Teck and Newmont Mining.

Atacama's corporate presentation can be found at:

https://atacamacopper.ca/investors/presentations/

Additional Information - Please Contact

Tim Warman

Chief Executive Officer and Director

Atacama Copper Corp.

Email:

[email protected]

Cautionary Statements

This news release includes certain "forward-looking statements" under applicable Canadian securities

legislation. Forward-looking statements include, but are not limited to, statements with respect to: the

maiden resource estimate at the Company's Cristina project; the drilling program at Cristina and the

potential for MRE growth; future development plans; and the business and operations of the

Company. Forward-looking statements are necessarily based upon estimates and assumptions that,

while considered reasonable, are subject to known and unknown risks, uncertainties and other factors

which may cause the actual results and future events to differ materially from those expressed or

implied by such forward-looking statements. Such factors include, but are not limited to business

integration risks; fluctuations in general macroeconomic conditions; fluctuations in securities markets;

fluctuations in spot and forward prices of gold, silver, base metals or certain other commodities;

fluctuations in currency markets; results of exploration; the economics of processing methods; change

in national and local government, legislation, taxation, controls, regulations and political or economic

developments; risks and hazards associated with the business of mineral exploration, development

and mining (including environmental hazards, industrial accidents, unusual or unexpected formations

pressures, cave-ins and flooding); inability to obtain adequate insurance to cover risks and hazards;

the presence of laws and regulations that may impose restrictions on mining; employee relations;

relationships with and claims by local communities and indigenous populations; availability of and

increasing costs associated with mining inputs and labour; the speculative nature of mineral

exploration and development (including the risks of obtaining necessary licenses, permits and

approvals from government authorities); and title to properties.

There can be no assurance that such statements will prove to be accurate, as actual results and future

events could differ materially from those anticipated in such statements. Accordingly, readers should

not place undue reliance on forward-looking statements. Atacama disclaims any intention or

obligation to update or revise any forward-looking statements, whether as a result of new information,

future events or otherwise, except as required by law.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the

policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this

news release.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/201215