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Heliostar Defines Growth Targets Including a Parallel Panel at Ana Paula, Mexico

Exploration Programs

1090 West Georgia Street, Suite 700, Vancouver BC, V6E 3V7, Canada -- Tel +1 236 429 9306

www.heliostarmetals.com | Trading Symbols: TSX.V: HSTR, OTCQX: HSTXF, FRA: RGG1

Heliostar Defines Growth Targets Including a Parallel Panel at

Ana Paula, Mexico

Highlights:

• Drill results identify a Parallel Panel target located ~50 metres north of the High Grade Panel with

mutiple high grade intercepts:

• 38.0m grading 6.95 grams per tonne (‘g/t’) gold including 6.0m grading 23.3 g/t gold

• 4.0m grading 10.7 g/t gold

• 2.0m grading 13.6 g/t gold

• Deep Expansion Zone beneath the High Grade Panel with open intercepts:

• 13.5m grading 29.1 g/t gold

• 40.0m grading 6.30 g/t gold

• New West Breccia target with gold mineralization and a pathfinder element signature as strong as

the High Grade Panel

• San Luis Target, a large jasperiod/vein zone with open gold drill intercepts and untested high gold

grades (3.0 m grading 11.35 g/t gold) on surface

• Drilling to test new targets commencing in September, 2023

• Amended Ana Paula acquisition agreement deferring next payment to earlier of Feasibility Study

or 2025

Vancouver, Canada, September 7th, 2023 – Heliostar Metals Ltd. (TSX.V: HSTR, OTCQX: HSTXF, FRA: RGG1)

(“Heliostar” or the “Company”) is pleased to introduce new growth targets at the Ana Paula project in

Mexico (“Ana Paula ” or the “ Ana Paula Project ”). The recent drill program has improved the

understanding on the controls on mineralization at Ana Paula. The Company has generated these targets

through a combination of new data and review of historic information.

Heliostar CEO, Charles Funk, commented, “To date in 2023, the team has been focussed on delivering the

re-scope goals set out by the Company for the High Grade Panel at Ana Paula. We have made significant

progress so far. Now the Company can build on th is foundation to demonstrate the resource growth

potential of the Ana Paula project. That starts with the significant recognition of a Parallel Panel just fifty

meters north of the High Grade Panel. It opens a well mineralized new target for expansion drilling. In

addition, the West Breccia, Expansion Zone, and San Luis targets are the highest priorities from a pipeline

of growth targets at Ana Paula. The team will prioritize the Parallel Panel and the West Breccia targets for

drilling this month.”

Growth Target Identification

The Company’s understanding of Ana Paula has built on the work of previous operators. This process led

to an evolution in the understanding of controls on gold mineralization. Most of the high-grade gold is

hosted in a diatreme breccia rock unit. This was the focus of exploration in the project ’s recent history.

The Company recognized that the breccia makes a great host rock and that it predates the mineralization

however structural controls play a far greater role in focusing gold mineralization.

TSX.V: HSTR

OTCQX: HSTXF

1090 West Georgia Street, Suite 700, Vancouver BC, V6E 3V7, Canada -- Tel +1 236 429 9306

www.heliostarmetals.com | Trading Symbols: TSX.V: HSTR, OTCQX: HSTXF, FRA: RGG1

Broad east-west faulting controls the earlier diatreme breccia emplacement and created excellent gold

pathways at Ana Paula. The results from the recent drill program at the High Grade Panel reinforce this

observation. Because the historic target was the breccia rather than the east-west fault structure, very

few holes in the current PFS resource are drilled in the best orientation to find these structures.

Figure 1: Plan Map showing, 2023 drilling, historic collars and labelling key growth targets and infrastructure at Ana Paula.

New Parallel Panel

As the recent drill program advanced, five Heliostar holes have probed the footwall of the High Grade

Panel. Completion of these drill hole on a more effective drill orientation began to define a new Parallel

Panel to the north of the existing High Grade Panel. The Parallel Panel target currently has dimensions of

200 metres long by 150 metres wide and remains open in all directions (Figure 2). The width is not well

defined as most historic holes intersected the Parallel Panel at a high angle. However, it appears to vary

from 2 to over 15 metres wide. Those holes returned long, high-grade intervals including.

- APM-17-15: 54.6 m grading 7.19 g/t gold

- APM-15-01: 97.6 m grading 4.64 g/t gold

- AP-11-72: 20.9 m grading 7.79 g/t gold

- AP-12-115: 9.5 m grading 5.06 g/t gold and

13.2m grading 5.39 g/t gold

Heliostar drilling in 2023 intersected the zone at a more representative orientation and has returned the

following intercepts.

- AP-23-299: 38.0m grading 6.95 g/t gold including 6.0m grading 23.3 g/t gold

- AP-23-304: 4.0m grading 10.7 g/t gold and 5.5m grading 4.13 g/t gold

- AP-23-296: 2.0m grading 13.6 g/t gold

- AP-23-303: 5.5m grading 4.15 g/t gold

1090 West Georgia Street, Suite 700, Vancouver BC, V6E 3V7, Canada -- Tel +1 236 429 9306

www.heliostarmetals.com | Trading Symbols: TSX.V: HSTR, OTCQX: HSTXF, FRA: RGG1

The Company believes a systematic infill drill program of holes drilled in a north -south plane has a high

probability of adding gold ounces to a resource that could be mined using underground methods. The

Parallel Panel will be the first target tested in the growth drill program commencing in September.

Figure 2: A section through the Parallel Panel. Significant intercepts from 2023 drilling labelled in red boxes and historic intercepts

in black.

Deep Expansion Zone

The Ana Paula resource is open at depth. The Expansion Zone sits beneath the High Grade Panel. The

previous owner recognized the potential of this zone and commenced a decline to better access the zone

for drilling. Drill results include.

- AP-11-70: 13.5m grading 29.1 g/t gold

- AP-13-215: 40.0m grading 6.3 g/t gold

- AP-12-86: 20.5m grading 6.0 g/t gold

- AP-12-90: 11.0m grading 4.0g/t gold

Access to the Expansion Zone is best from underground or utilizing directional drilling. The shallow targets

discussed previously will take priority ahead of the Expansion Zone for this reason alone.

1090 West Georgia Street, Suite 700, Vancouver BC, V6E 3V7, Canada -- Tel +1 236 429 9306

www.heliostarmetals.com | Trading Symbols: TSX.V: HSTR, OTCQX: HSTXF, FRA: RGG1

Figure 3: A section through the resource model from 2023 PFS 1 highlighting the Expansion Zone Target (clipped to greater than

2g/t resource blocks).

West Breccia – A High Grade Panel Lookalike

The gold mineralization in the High Grade Panel at the core of Ana Paula has distinctive pathfinder

elements associated with it, including bismuth. Two deep drill holes, 300 metres west of the High Grade

Panel, intersected pathfinder anomalies as strong as those within the High Grade Panel (Figure 4; next

page). These holes also have narrow gold intercepts. However, there has not been any follow-up drilling

to chase potential gold mineralization similar to the High Grade Panel at the West Breccia.

Surface rock chips above the West Breccia target define multiple areas of gold anomalism with up to 2.77

g/t gold. Geophysics shows a similar chargeability anomaly as the area of the High Grade P anel. As a

shallow target, the West Breccia will be tested in in the next phase of exploration drilling.

1090 West Georgia Street, Suite 700, Vancouver BC, V6E 3V7, Canada -- Tel +1 236 429 9306

www.heliostarmetals.com | Trading Symbols: TSX.V: HSTR, OTCQX: HSTXF, FRA: RGG1

Figure 4: Sections through the West Breccia target showing intercepts defining the target in Gold, Bismuth anomalism and IP

Geophysics.

San Luis

San Luis is a hybrid epithermal vein/skarn gold target with high gold grades sampled across a large area

of alteration. The target is located 5.5 kilometres east of Ana Paula. It begins at the property boundary

with Torex Gold and extends for over 2.5 kilometres of strike on the Company’s lands. The target is a zone

of intense silicification with gold and pathfinder elements that have epithermal quartz veins in the silicified

structures. Surface samples include.

- 3.0 m grading 11.35 g/t gold (Undrilled)

- 1.15 m grading 8.83 g/t gold (Undrilled)

- 0.5 m grading 16.7 g/t gold (Undrilled)

1090 West Georgia Street, Suite 700, Vancouver BC, V6E 3V7, Canada -- Tel +1 236 429 9306

www.heliostarmetals.com | Trading Symbols: TSX.V: HSTR, OTCQX: HSTXF, FRA: RGG1

Two phases of drilling were completed historically, with best results of 3.05 metres at 3.32 g/t gold and

15.3 metres grading 1.18 g/t gold. These holes tested potential skarn contacts between the limestone

unit and the granodiorite intrusions. The silicified structures, which Heliostar geologists believe have the

highest potential, remain almost entirely untested.

San Luis is one of several regional targets that will be the focus of a new drill permit. Heliostar will target

them in 2024 once the permit has been received.

Amended Purchase Agreement

Heliostar and Argonaut Gold have amended the terms of the Ana Paula purchase agreement.

Argonaut Gold has agreed to defer the outside date of the US$2,000,000 cash payment associated with

the Feasibility Study to January 1 st, 2025. This is an extension of six months and represents the earliest

cash obligation Heliostar must meet.

In return, Heliostar agreed to re-imburse to Argonaut Gold US$150,000 in Ana Paula claim fees from the

closing of the transaction to June 30, 2023 . Additionally, Heliostar will cover certain transition services

and administration costs incurred during the handover of the asset.

Also, the open pit mine permit extension/new underground mine permit granting milestone was also

modified to clarify that the issuance of US$5,000,000 in shares will be divided by the VWAP of Heliostar’s

shares for the ten trading days ending on the last trading day immediately prior to the date of award of

the permits.

Webinar Invitation

The Company is hosting a webinar today (September 7th) at 11am Pacific/2pm Eastern time to provide an

update on the progress made over the summer at Ana Paula. The company will provide a detailed review

of the progress made with the re-scope to date, the catalysts for the remainder of 2023 and the options

ahead to rapidly bring Ana Paula into production.

Please use the link here to register for the webinar:

https://us02web.zoom.us/webinar/register/WN_JfM07_7USW-yZZmaVAS5tg

Statement of Qualified Person

Stewart Harris, P.Geo., a Qualified Person, as such term is defined by National Instrument 43 -101 –

Standards of Disclosure for Mineral Projects (“NI 43 -101”), has reviewed the scientific and technical

information that forms the basis for this news release and has approved the disclosure herein.

About Heliostar Metals Ltd.

Heliostar is a junior mining company with a portfolio of high-grade gold projects in Mexico and Alaska.

The Company is focused on developing the 100% owned Ana Paula Project in Guerrero, Mexico. In

addition, Heliostar is working with the Mexican federal and local government to permit the San Antonio

1090 West Georgia Street, Suite 700, Vancouver BC, V6E 3V7, Canada -- Tel +1 236 429 9306

www.heliostarmetals.com | Trading Symbols: TSX.V: HSTR, OTCQX: HSTXF, FRA: RGG1

Gold Project in Baja Sur, Mexico. The Company continues to explore the Unga Gold Project in Alaska,

United States of America.

The Ana Paula Project deposit contains proven and probable mineral reserves of 1,081,000 ounces of gold

(630,000 proven and 451,000 probable ounces) at 2.38 grams per tonne (“g/t”) gold and 2,547,000 ounces

of silver (1,322,000 proven and 1,226,000 probable ounces) at 5.61 g/t silver. Ana Paula hosts measured

and indicated resources of 1,468,800 ounces of gold (703,800 measured and 765,000 indicated ounces)

at 2.16 g/t gold and 3,600,000 ounces of silver (1,637,000 measured and 1,963,000 indicated ounces) a t

5.3 g/t silver. The asset is permitted for open -pit mining and contains significant existing infrastructure

including a portal and a 412-metre-long decline.

References

1 An updated prefeasibility study titled “Ana Paula Project NI 43 -101 Technical Report Preliminary

Feasibility Study Update” was filed on SEDAR on April 6, 2023, with an effective date of February

28, 2023, prepared for the Company by Daniel H. Neff, PE, Art S. Ibrado, PhD, PE, Richard K.

Zimmerman, RG, SME-RM, Craig Gibson, PhD, CPG, Andrew Kelly, P.Eng., Gordon Zurowski, P.Eng.,

Paul Daigle, P.Geo., Gilberto Dominguez, PE and James A. Cremeens, PE, PG.

For additional information please contact:

Charles Funk

Chief Executive Officer

Heliostar Metals Limited

Email: [email protected]

Rob Grey

Investor Relations Manager

Heliostar Metals Limited

Email: [email protected]

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 release.

This news release includes certain "Forward–Looking Statements" within the meaning of the United States

Private Securities Litigation Reform Act of 1995 and "forward –looking information" under applicable

Canadian securities laws. When used in this news release, the words "anticipate", "believe", "estimate",

"expect", "target", "plan", "forecast", "may", "wou ld", "could", "schedule" and similar words or

expressions, identify forward –looking statements or information. These forward –looking statements or

information relate to, among other things: the exploration, development, and production at the

Company’s properties; permitting at the San Antonio project; the release of exploration results; and future

resource and reserve estimates. Forward–looking statements and forward–looking information relating to

any future mineral production, liquidity, enhanced value an d capital markets profile of the Company,

future growth potential for the Company and its business, and future exploration plans are based on

management's reasonable assumptions, estimates, expectations, analyses and opinions, which are based

on management's experience and perception of trends, current conditions and expected developments,

and other factors that management believes are relevant and reasonable in the circumstances, but which

1090 West Georgia Street, Suite 700, Vancouver BC, V6E 3V7, Canada -- Tel +1 236 429 9306

www.heliostarmetals.com | Trading Symbols: TSX.V: HSTR, OTCQX: HSTXF, FRA: RGG1

may prove to be incorrect. Assumptions have been made regarding, am ong other things, the price of

metals; no escalation in the severity of public health crises or ongoing military conflicts; costs of exploration

and development; the estimated costs of development of exploration projects; and the Company's ability

to operate in a safe and effective manner and its ability to obtain financing on reasonable terms.

These statements reflect the Company's respective current views with respect to future events and are

necessarily based upon a number of other assumptions and estima tes that, while considered reasonable

by management, are inherently subject to significant business, economic, competitive, political, and social

uncertainties, and contingencies. Many factors, both known and unknown, could cause actual results,

performance, or achievements to be materially different from the results, performance or achievements

that are or may be expressed or implied by such forward –looking statements or forward -looking

information and the Company has made assumptions and estimates based on or related to many of these

factors. Such factors include, without limitation: precious metals price volatility; risks associated with the

conduct of the Comp any's mining activities in foreign jurisdictions ; regulatory, consent or permitting

delays; risks relating to reliance on the Company's management team and outside contractors; risks

regarding exploration and mining activities; the Company's inability to obtain insurance to cover all risks,

on a commercially reasonable basis or at all; currency fluctuations; risks regarding the failure to generate

sufficient cash flow from operations; risks relating to project financing and equity issuances; risks and

unknowns inherent in all mining projects, including the inaccuracy of reserves and resources, metallurgical

recoveries and capital and operating costs of such projects; contests over title to properties, particularly

title to undeveloped properties; laws and re gulations governing the environment, health and safety; the

ability of the communities in which the Company operates to manage and cope with the implications of

public health crises ; the economic and financial implications of public health crises, ongoing military

conflicts and general economic factors to the Company; operating or technical difficulties in connection

with mining or development activities; employee relations, labour unrest or unavailability; the Company's

interactions with surrounding commun ities; the Company's ability to successfully integrate acquired

assets; the speculative nature of exploration and development, including the risks of diminishing quantities

or grades of reserves; stock market volatility; conflicts of interest among certain directors and officers; lack

of liquidity for shareholders of the Company; litigation risk; and the factors identified under the caption

“Risk Factors” in the Company’s public disclosure documents. Readers are cautioned against attributing

undue certainty to forward–looking statements or forward-looking information. Although the Company

has attempted to identify key factors that could cause actual results to differ materially, there may be

other factors that cause results not to be anticipated, estimated o r intended. The Company does not

intend, and does not assume any obligation, to update these forward –looking statements or forward -

looking information to reflect changes in assumptions or changes in circumstances or any other events

affecting such statements or information, other than as required by applicable law.