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6-K

Santacruz Silver Mining Ltd. (SCZM)

6-K 2026-06-30 For: 2026-06-30
View Original
Added on June 30, 2026

UNITEDSTATES

SECURITIESAND EXCHANGE COMMISSION

Washington,D.C. 20549

FORM6-K

Reportof Foreign Private Issuer

Pursuantto Rule 13****a-16or 15d-16

UNDERthe Securities Exchange Act of 1934

For the month of June 2026

Commission File No.: 001-43051

SantacruzSilver Mining Ltd.

(Translation of registrant’s name into English)

480– 1140 West Pender Street

Vancouver,British Columbia

CanadaV6E 4G1

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F: Form 20-F ☐ Form 40-F ☒

EXHIBITINDEX

Exhibit Description
99.1 Press Release dated June 29, 2026

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Santacruz Silver Mining Ltd.
Date: June 30, 2026 By: /s/ Andres Bedregal
Name: Andres Bedregal
Title: Chief Financial Officer

Exhibit99.1


News Release<br><br> <br>June 29, 2026

SantacruzSilver Reports Fatality at Bolivian Operation

Vancouver,B.C. – Santacruz Silver Mining Ltd. (NASDAQ:SCZM) (TSX.V:SCZ) (“Santacruz” or the “Company”) regrets to report that an employee of the Company was fatally injured at the Reserva mine, part of the mining operations in Bolivia.

The incident occurred on June 24, 2026 at approximately 6:30 pm, at the end of the third shift. Preliminary findings indicate the incident did not occur during the course of normal mining operations or the employee’s assigned work duties. Emergency response protocols were immediately activated; however, despite these efforts, the employee did not survive the incident.

The Company extends its deepest condolences to the employee’s family, friends, and colleagues during this difficult time. Support is being provided to the employee’s family and to employees affected by this tragic loss.

Arturo Préstamo, Executive Chairman and CEO of Santacruz, stated: “The loss of a member of our team fills us with profound sorrow.On behalf of the entire organization, we express our condolences and support to the family of our employee during this incredibly difficulttime. Nothing is more important than the health and safety of our people. Our priority is to provide the necessary support to their lovedones and, at the same time, advance a thorough investigation to determine the factors that led to this tragic event. We reaffirm ourcommitment to safety, transparency, and the continuous improvement of our operating protocols, with the goal of preventing a similartragedy from happening again.

The Company has well-established safety procedures and training programs in place. Preliminary findings indicate the incident may have involved a deviation from these procedures.

As an immediate precautionary measure, the Company suspended activities in the affected area and initiated a comprehensive investigation in coordination with the competent authorities and external experts. The investigation will review the circumstances surrounding the incident and identify any additional corrective measures, with a commitment to full transparency and technical rigor.

The health and safety of the Company’s employees remain its highest priority. The Company remains committed to maintaining a safe workplace through rigorous safety standards, ongoing training, and continuous improvement of its safety systems and practices.

The Company will provide further commentary and updates on the investigation as additional information becomes available. The Company will also provide an update regarding the resumption of operations at this section of the Reserva Mine once the ongoing investigations have been completed.


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AboutSantacruz Silver Mining Ltd.

Santacruz Silver is engaged in the operation, acquisition, exploration, and development of mineral properties across Latin America. In Bolivia, the Company operates the Bolivar, Porco, and Caballo Blanco mining complexes, with Caballo Blanco comprising the Tres Amigos and Colquechaquita mines. The Reserva mine, whose production is provided to the San Lucas ore sourcing and trading business, is also located in Bolivia. Additionally, the Company oversees the Soracaya exploration project. In Mexico, Santacruz operates the Zimapan mine.

‘signed’

Arturo Préstamo Elizondo,

Executive Chairman and CEO

For further information, please contact:

Arturo Préstamo

Santacruz Silver Mining Ltd.

Email: [email protected]

Telephone: +52 81 83 785707

Andrés Bedregal

Santacruz Silver Mining Ltd.

Email: [email protected]

Telephone: +591 22444849

Eduardo Torrecillas

Santacruz Silver Mining Ltd.

Email: [email protected]

Telephone: +591 22444849

Neitherthe TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) northe Nasdaq Capital Market LLC accepts responsibility for the adequacy or accuracy of this news release. No stock exchange, securitiescommission or other regulatory authority has approved or disapproved the information contained herein.

ForwardLooking Information

Thisnews release includes certain statements and information that may constitute forward-looking information within the meaning of applicableCanadian securities laws. Forward-looking statements relate to future events or future performance and reflect the expectations or beliefsof management of the Company regarding future events. Generally, forward-looking statements and information can be identified by theuse of forward-looking terminology such as “intends”, “expects” or “anticipates”, or variations ofsuch words and phrases or statements that certain actions, events or results “may”, “could”, “should”,“would” or will “potentially” or “likely” occur.

Theseforward-looking statements involve numerous risks and uncertainties and actual results might differ materially from results suggestedin any forward-looking statements. These risks and uncertainties include, among other things, risks related to changes in general economic,business and political conditions, including changes in the financial markets, changes in applicable laws, and compliance with extensivegovernment regulation, as well as those risk factors discussed or referred to in the Company’s disclosure documents filed withthe securities regulatory authorities in certain provinces of Canada and available at www.sedarplus.ca.

Inmaking the forward-looking statements in this news release, the Company has applied several material assumptions, including without limitation,assumptions regarding the Company’s ability to carry out its business plans and operations and the continuation of current operatingconditions.

Therecan be no assurance that any forward-looking information will prove to be accurate, as actual results and future events could differmaterially from those anticipated in such statements. Accordingly, the reader should not place any undue reliance on forward-lookinginformation or statements. The Company undertakes no obligation to update forward-looking information or statements, other than as requiredby applicable law.

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