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STS.V ·

South Star Announces Closing of Final Tranche of Non-Brokered Private Placement of Shares

Financings Corporate Updates

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

Placement of Shares

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

VANCOUVER, British Columbia, June 09, 2026 -- South Star Battery Metals Corp. (“South Star” or the “Company”) (TSXV:

STS) (OTCQB: STSBF) is pleased to announce that, further to its news releases dated May 6, 2026 and May 15, 2026, the

Company has closed the second and final tranche of its previously announced non-brokered private placement of common

shares (the “Share Offering ”), issuing 16,587,667 common shares (the “ Shares”), at a price of CAD $0.15 per Share for

gross proceeds of CAD $2,488,000 (the “ Final Tranche ”). Including the first tranche which closed on May 15, 2026, the

Company has raised total gross proceeds of CAD $4,800,000 under the Share Offering.

The Shares issued under the Final Tranche 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 Share Offering will be used to support the

continued scaling and advancement of the Company's operations, including the execution of capital expenditures associated

with the planned expansion of the Santa Cruz graphite operation toward a production capacity of 10,000 tonnes per annum, as

well as for corporate general and administrative expenses and general working capital purposes.

In connection with the Final Tranche, the Company paid aggregate finder's fees consisting of CAD $182,981 in cash and

1,474,567 Shares issued at a deemed price of CAD $0.15 per Share to A8 Capital Advisors Latin America Ltd.

Ace Global Special Opportunities BRL Fundo De Investimento Financeiro EM Acoes, a fund directed and controlled by Tiago

Cunha, the Interim Chief Executive Officer, President and director of the Company, purchased 210,136 Shares in the Final

tranche, resulting in Tiago Cunha having direction and control of 29.67% of the Company’s issued and outstanding shares.

Priscila Costa Lima, a director of the Company also purchased 200,000 Shares in the Final tranche, resulting in Priscila Costa

Lima having direction and control of less than 1% of the Company’s issued and outstanding shares. 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 Shares

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

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 is anticipated to be put into production. Brazil is the third largest graphite

producing region in the world with more than 80 years of continuous graphite mining. With excellent infrastructure and

logistics, Santa Cruz is slated to be the newest graphite producer in the Americas. 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 .

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

Email: [email protected]

Phone: +1 (303) 519-5149

Website: www.southstarbatterymetals.com

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 the final tranche of the

Share Offering, the anticipated gross proceeds and the use of proceeds therefrom, 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; 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.