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STS.V ·

South Star Announces Closing of First Tranche of Non-Brokered Private Placement of Units

Financings

South Star Announces Closing of First Tranche of Non-Brokered Private

Placement of Units

- NOT FOR DISSEMINATION IN THE UNITED STATES OR THROUGH U.S. NEWSWIRE SERVICES -

VANCOUVER, British Columbia, Oct. 10, 2025 -- South Star Battery Metals Corp. (“South Star ” or the “Company”) (TSXV:

STS) (OTCQB: STSBF) is pleased to announce that, further to its news release dated September 30, 2025, it has closed the

first tranche of its previously announced non-brokered private placement of units (the “Unit Offering”), issuing 5,521,512 units

(the “Units”) at a price of C$0.15 per Unit for gross proceeds of C$828,227 (approximately US$595,847).

Each Unit consists of one common share (a “ Share ”) and one common share purchase warrant (a “Warrant ”). Each Warrant

entitles the holder to acquire one additional Share at a price of C$0.20 per Share for a period of five (5) years from the closing

date, subject to acceleration. The expiry date of the Warrants may be accelerated, at the option of the Company, if at any

time after four (4) months following the closing date, the closing price of the Company’s common shares on the TSX Venture

Exchange (the “Exchange”) is at or above C$0.40 for ten (10) consecutive trading days, provided that the Company gives

thirty (30) days’ prior notice to the holders by news release.

The securities issued under the first tranche of the Unit Offering are subject to a statutory hold period of four months and one

day from the date of issuance in accordance with applicable securities laws. Net proceeds from the Unit Offering will be used

for exploration and development activities, general and administrative expenses, and working capital. The first tranche of the

Unit Offering remains subject to final approval of the Exchange.

The Company anticipates closing one or more additional tranches of the Unit Offering in the coming weeks, the closing of

which remain subject to customary conditions, including the receipt of all necessary corporate and regulatory approvals,

including approval of the Exchange.

The Company previously announced on September 30, 2025 that certain funds directed and controlled by Mr. Tiago Cunha,

Interim CEO, President and a director of the Company, agreed to complete a non-brokered private placement of convertible

notes for gross proceeds of up to C$2.085 million (US$1.5 million) (the “ Note Offering ”). The Company will no longer be

proceeding with the Note Offering and the funds have instead agreed to purchase C$2.085 million (US$1.5 million) of Units

under the terms of the Unit Offering. As a result, the Company has increased the size of the Unit Offering to up to C$6,255,000

(US$4.5 million).

Funds directed and controlled by Mr. Tiago Cunha purchased 1,557,912 Units in the first tranche of the Unit Offering, resulting

in Mr. Tiago Cunha having direction and control of 19.9% of the Company’s issued and outstanding shares. The Company

intends to hold a shareholder meeting on or about November 17, 2025 to seek approval of shareholders for Mr. Tiago Cunha to

become a control person of the Company in accordance with the requirements of the Exchange. Subject to and upon receipt

of such shareholder approval, the funds directed and controlled by Mr. Tiago Cunha will complete the purchase of an additional

12,342,088 Units, representing the balance of their C$2.085 million (US$1.5 million) investment commitment.

Insiders of the Company purchased an aggregate of 2,007,912 Units in the first tranche of the Unit Offering (including the

1,557,912 Units purchased by funds directed and controlled by Mr. Tiago Cunha). Such insider participation constitutes a

“related party transaction” under Multilateral Instrument 61-101 – Protection of Minority Security Holders in Special

Transactions (“MI 61-101”). The Company is relying on exemptions from the formal valuation and minority shareholder approval

requirements of MI 61-101 pursuant to sections 5.5(a) and 5.7(1)(a) thereof, as the fair market value of the securities

subscribed for does not exceed 25% of the Company’s market capitalization.

The Company also announces that it will not be proceeding with any further tranches of the Company’s prior offering of units

originally announced on June 4, 2025.

This news release does not constitute an offer to sell or a solicitation of an offer to buy any of the securities in the United

States. The securities have not been and will not be registered under the United States Securities Act of 1933, as amended

(the “U.S. Securities Act ”) or any state securities laws and may not be offered or sold within the United States or to U.S.

Persons unless registered under the U.S. Securities Act and applicable state securities laws or an exemption from such

registration is available.

ABOUT SOUTH STAR BATTERY METALS CORP.

South Star is a Canadian battery-metals project developer focused on the selective acquisition and development of near-term

production projects in the Americas. South Star’s Santa Cruz Graphite Project, located in Southern Bahia, Brazil is the first of

a series of industrial- and battery-metals projects that will be put into production. Brazil is the second-largest graphite-

producing region in the world with more than 80 years of continuous mining. Santa Cruz has at-surface mineralization in friable

materials, and successful large-scale pilot-plant testing (> 30 tonnes) has been completed. The results of the testing show

that approximately 65% of graphite concentrate is +80 mesh with good recoveries and 95%-99% graphitic carbon (Cg). With

excellent infrastructure and logistics, South Star Phase 1 is ramping up commercial production with first sales shipped in May

2025. Santa Cruz is the first new graphite production in the Americas since 1996.

South Star’s second project in the development pipeline is strategically located in the center of a developing electric-vehicle,

aerospace, and defense hub in Alabama, U.S.A. The BamaStar Project includes a historic mine active during the First and

Second World Wars. The vertically integrated production facilities include a mine and industrial concentrator in Coosa County,

AL and a downstream value-add plant in Mobile, AL, which will be upgrading natural flake graphite concentrates from both

Santa Cruz and BamaStar mines. A NI 43-101 Preliminary Economic Assessment demonstrates strong economic results with

a pre-tax Net Present Value ("NPV8%") of US$2.4 billion and an Internal Rate of Return ("IRR") of 35%, as well as an after-tax

NPV8% US$1.6 billion with an IRR of 27%. South Star has also received US$3.2 million grant commitment from the US

Department of Defense Title III program to advance a feasibility study on the BamaStar project. South Star trades on the TSX

Venture Exchange under the symbol STS, and on the OTCQB under the symbol STSBF.

South Star is committed to a corporate culture, project execution plan and safe operations that embrace the highest standards

of ESG principles, based on transparency, stakeholder engagement, ongoing education, and stewardship. To learn more,

please visit the Company website at http://www.southstarbatterymetals.com .

This news release has been reviewed and approved for South Star by Marc Leduc, P. Eng., a “Qualified Person” under

National Instrument 43-101 and Chairman of South Star Battery Metals Corp.

On behalf of the South Star Board of Directors,

MR. MARC LEDUC,

CHAIRMAN OF THE BOARD OF DIRECTORS

For additional information, please contact: South Star Investor Relations

South Star Investor Relations

Email: [email protected]

Phone: +1 (604) 706-0212

Website: www.southstarbatterymetals.com

Twitter: https://twitter.com/southstarbm

Facebook: https://www.facebook.com/southstarbatterymetals

LinkedIn: https://www.linkedin.com/company/southstarbatterymetals/

YouTube: https://www.youtube.com/@southstarbatterymetals6425

CAUTIONARY STATEMENT

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

Exchange) accepts responsibility for the adequacy or accuracy of this press release.

FORWARD-LOOKING INFORMATION

This press release contains “forward-looking statements” within the meaning of applicable securities legislation. Forward-

looking statements relate to information that is based on assumptions of management, forecasts of future results, and

estimates of amounts not yet determinable. Any statements that express predictions, expectations, beliefs, plans,

projections, objectives, assumptions or future events or performance are not statements of historical fact and may be “forward

-looking statements”.

Forward-looking statements in this press release include, but are not limited to, the completion of subsequent tranches of the

Unit Offering, the anticipated gross proceeds and the use of proceeds therefrom, the potential creation of a new control

person, the timing and receipt of shareholder and regulatory approvals, and the Company’s overall strategy, plans, and future

expectations.

Forward-looking statements are subject to a variety of risks and uncertainties which could cause actual events or results to

differ from those reflected in the forward-looking statements, including, without limitation: risks related to failure to obtain

adequate financing on a timely basis and on acceptable terms; risks related to the outcome of legal proceedings; political and

regulatory risks associated with mining and exploration; risks related to the maintenance of stock exchange listings; risks

related to environmental regulation and liability; the potential for delays in exploration or development activities or the

completion of feasibility studies; the uncertainty of profitability; risks and uncertainties relating to the interpretation of drill

results, the geology, grade and continuity of mineral deposits; risks related to the inherent uncertainty of production and cost

estimates and the potential for unexpected costs and expenses; results of prefeasibility and feasibility studies, and the

possibility that future exploration, development or mining results will not be consistent with the Company's expectations; risks

related to commodity price fluctuations; risks relating to the receipt of shareholder approval for the Note Offering; and other

risks and uncertainties related to the Company's prospects, properties and business detailed elsewhere in the Company's

disclosure record. Additional information on these and other risk factors can be found in the Company’s continuous disclosure

documents available under its profile on SEDAR+ at www.sedarplus.ca.

Should one or more of these risks and uncertainties materialize, or should underlying assumptions prove incorrect, actual

results may vary materially from those described in forward-looking statements. Investors are cautioned against attributing

undue certainty to forward-looking statements. These forward-looking statements are made as of the date hereof and the

Company does not assume any obligation to update or revise them to reflect new events or circumstances. Actual events or

results could differ materially from the Company's expectations or projections.