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Mirasol Resources Provides Updates on its Libanesa and Virginia Precious Metals Projects in Argentina

Mergers & Acquisitions

NEWS RELEASE

Suite 1150 – 355 Burrard Street, Vancouver, B.C. Canada, V6C 2G8

Tel: +1 604 602 9989 E-mail: [email protected]

www.mirasolresources.com

www.mirasolresources.com

October 12, 2021

Shares Issued and Outstanding: 53,872,043

TSX-V: MRZ

OTCPK: MRZLF

Mirasol Resources Provides Updates on its Libanesa and

Virginia Precious Metals Projects in Argentina

VANCOUVER, BC, October 12, 2021 — Mirasol Resources Ltd. (TSX-V: MRZ) (OTCPK: MRZLF) (the

“Company” or “ Mirasol”) is pleased to provide an update on two partner-funded projects in the

province of Santa Cruz , Argentina. At the Libanesa project (“Libanesa”), Mirasol has executed a

definitive agreement granting Golden Arrow Resources Corporation (TSX-V: GRG) (“Golden Arrow”) an

option to acquire a 75% interest i n the project. A s urface exploration program operated by Golden

Arrow is to start shortly to refine drill targets, with a maiden drill program planned for Q1 2022. At the

Virginia project (“Virginia”) , which is under an option agreement with Silver Sands Resources Corp.

(CSE: SAND) (“Silver Sands”) and operated by Mirasol, the Company’s exploration team has started a

2,685m Phase III drill program.

Mirasol’s President, Tim Heenan stated: “We are pleased to be partnered at Libanesa with Golden

Arrow, a well -funded exploration company with a successful discovery record in Argentina. We look

forward to Golden Arrow moving forward aggressively with its exploration plan to refine the drill targets

in preparation for the maiden drill program expected to start in early 2022.”

Mr. Heenan added: “We are also pleased that drilling has started again at Virginia to follow up on our

successful Phase I and II programs. The 2,685m Phase III program is designed to increase the Ag

resources at Virginia by following-up on prospective targets discovered last field season. This is shaping

up to be a very busy season on our properties in Santa Cruz, Argentina.”

Figure 1: Santa Cruz regional map with Mirasol’s project location

• Libanesa:

Mirasol has granted Golden Arrow an option (the “Option”) to earn a 75% undivided interest in Libanesa

over six years (the “Option Period”) by:

- incurring exploration expenditures totaling US$4,000,000

o US$500,000 per year during the first 2 years; and

o US$750,000 per year thereafter.

- making cash payments to Mirasol totaling US$1,000,000

o US$100,000 to be paid on the 2nd, 3rd and 4th anniversaries;

o US$250,000 on the 5th anniversary; and

o US$450,000 on the 6th anniversary.

The initial US$500,000 in exploration expenditures is a firm commitment, but it may be incurred over

24 months instead of 12 months if all permits required for exploration are not in place by the end of

Suite 1150 – 355 Burrard Street, Vancouver, B.C. Canada, V6C 2G8

Tel: +1 604 602 9989 E-mail: [email protected]

www.mirasolresources.com

www.mirasolresources.com

March 2022. In addition, Golden Arrow is required to complete a minimum of 2,000m of drilling by the

end of the second year. Golden Arrow will be the operator during the Option Period.

Upon exercise of the Option, M irasol and Golden Arrow will hold 25% and 75% , respectively, in a

participating joint venture company holding Libanesa. If either party’s equity interest is diluted below

10%, it will convert to a 2% net smelter return royalty.

Libanesa Project Overview and Exploration Plans

Libanesa is a 14,500 ha Ag-Au (Pb) project discovered by Mirasol. It is located at the northeastern

margin of the Deseado Massif Au -Ag metallogenic province, approximately 70 km west of the port of

Puerto Deseado , 40 km northwest of the Cerro Moro Mine operated by Yamana Gold and 100 km

northeast of the Don Nicolas mine operated by Cerrado Gold.

Libanesa hosts several diversified geological, geochemical and geophysical -supported drill targets.

Cerro Plomo is the principal prospect and is characterized by a well-mineralized Au/Ag hydrothermal

breccia that is exposed at surface and supported by both char geability and resistivity geophysical

anomalies at depth. Peripheral polymetallic veins at the Libanesa Main prospect represent secondary

targets and are supported by strong base metal and Au mineralization. The Lagunita prospect is a third

prospective zone , which has reported encouraging rock chip Au values from more typical low

sulfidation-type epithermal veins and breccias. This prospect warrants additional surface exploration

to vector into the potentially better mineralized parts of this extensive vein system, where intermittent

vein occurrences , outcropping/sub-cropping through post mineral cover , have been mapped over a

strike length of more than 2.3 km. (see News Release June 1 st, 2021 for a summary on previous work

completed at Libanesa).

Golden Arrow is mobilizing an exploration team to Santa Cruz this month to conduct additional surface

exploration, which may include geophysical surveys, to refine targets for a drill program expected to

start in the first quarter of 2022.

• Virginia:

Mirasol’s exploration team has mobilized to Virginia and drilling is now underway. The Phase III drill

program follows the successful completion of nearly 6,000m of drilling last season, which le d to the

discovery of a new high-grade zone at the Ely Central target. Drilling intersected strong and continuous

Ag grades in four core holes over a 200m strike length (see News Release May 17, 2021). Significant

intercepts were also encountered at the Ely Central, Ely North, Martina NW and Julia South targets .

The drill campaigns are successfully defining additional mineralization at Virginia, which currently hosts

a NI 43-101 indicated mineral resource of 11.9 million ounces of Ag at 310 g/t Ag and a further inferred

resource 3.1 million ounces of Ag at 207 g/t Ag. (Refer to Amended NI 43 -101 technical report filed

February 29, 2016: “Amended Technical Report, Virginia Project, Santa Cruz Province, Argentina - Initial

Silver Mineral Resource Estimate” prepared by D. Earnest and M. Lechner).

The current 2,685m drill program is focused on expanding the known mineralized zones at Virginia by

drilling within gaps, along strike and depth at Ely Central, Ely North , Julia South and Martina NW.

Additional drill holes are planned at the Margarita target along strike and below anomalous surface

Suite 1150 – 355 Burrard Street, Vancouver, B.C. Canada, V6C 2G8

Tel: +1 604 602 9989 E-mail: [email protected]

www.mirasolresources.com

www.mirasolresources.com

rock samples. In addition, Mirasol will complete an initial test at the Maos target and at the Santa Rita

prospect, which is located in the north of the property package.

This program is being funded by Silver Sands under an option-to-purchase agreement in terms of which

Mirasol will retain a 19.9% equity ownership in Silver Sands and a 3% NSR royalty (with a buydown to

2% for US$2M), if the option is exercised (see News Release May 21, 2020).

About Mirasol Resources Ltd

Mirasol is a well -funded exploration company focused in Chile and Argentina. Mirasol has seven

partner-funded projects, with Newcrest Mining Ltd (Chile), First Quantum Minerals (Chile), Mine

Discovery Fund (Chile), Mineria Activa (Ch ile), Silver Sands Resources (Argentina), Patagonia Gold

(Argentina) and Golden Arrow (Argentina). Mirasol is currently self-funding exploration at two projects,

Inca Gold (Chile) and Sacha Marcelina (Argentina).

For further information, contact:

Tim Heenan, President

or

Jonathan Rosset, VP Corporate Development

Tel: +1 (604) 602-9989

Email: [email protected]

Website: www.mirasolresources.com

Qualified Person Statement: Mirasol’s disclosure of technical and scientific information in this press release has been

reviewed and approved by Tim Heenan (MAIG), the President of the Company, who serves as a Qualified Person under the

definition of National Instrument 43-101.

Forward Looking Statements: The information in this news release contains forward looking statements that are subject to

a number of known and unknown risks, un certainties and other factors that may cause actual results to differ materially

from those anticipated in our forward -looking statements. Factors that could cause such differences include: changes in

world commodity markets, equity markets, costs and supp ly of materials relevant to the mining industry, change in

government and changes to regulations affecting the mining industry and to policies linked to pandemics, social and

environmental related matters. Forward-looking statements in this release include statements regarding future exploration

programs, operation plans, geological interpretations, mineral tenure issues and mineral recovery processes. Although we

believe the expectations reflected in our forward -looking statements are reasonable, results m ay vary, and we cannot

guarantee future results, levels of activity, performance or achievements. Mirasol disclaims any obligations to update or

revise any forward-looking statements whether as a result of new information, future events or otherwise, excep t as may

be required by applicable law.

Neither the 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 release.

Suite 1150 – 355 Burrard Street, Vancouver, B.C. Canada, V6C 2G8

Tel: +1 604 602 9989 E-mail: [email protected]

www.mirasolresources.com

www.mirasolresources.com

Figure 1