| Santacruz Silver Advances Soracaya Project Toward Production with Preliminary Mine Plan and Permitting 
 newsfilecorp.com
 
 October 07, 2025 7:00 AM EDT | Source:  Santacruz Silver Mining Ltd.
 
 Vancouver, British Columbia--(Newsfile Corp. - October 7, 2025) - Santacruz Silver Mining Ltd. (TSXV: SCZ) (OTCQX: SCZMF) (FSE: 1SZ) ("Santacruz"  or the "Company") is pleased to announce the initiation of development  activities and the pursuit of full production permitting at its  wholly-owned Soracaya Project ("Soracaya" or the "Project"), located in  the Potosí Department, Bolivia. These activities mark a key step toward  advancing the Project to a production decision.
 
 Arturo Préstamo,  Executive Chairman and CEO of Santacruz, commented: "With the  preliminary mine plan in place and the permitting process underway,  Soracaya is emerging as a cornerstone growth project for Santacruz in  Bolivia. Its high-grade resource, strategic location, and synergies with  existing operations give us confidence in its ability to deliver  long-term value for shareholders and stakeholders alike."
 
 Mr.  Préstamo continued: “By advancing the Project and preparing for future  construction, we are laying the foundation to add another producing mine  to our portfolio while we keep a disciplined approach to cost control  and operations improvements. Our work at Soracaya represents a clear  commitment to Santacruz’s long-term growth and expansion in Bolivia.”
 
 Soracaya  is a high-grade, silver-rich project, featuring mineralization along  reactivated faults with replacement and brecciated sulphides, geological  characteristics typical of some of the world's most productive silver  deposits. Since 1999, more than 29.6 km of drilling across 90+ holes has  provided extensive geological data, supporting robust resource modeling  and preliminary mine planning.
 
 With this resources base in place,  Santacruz is now focused on completing permitting and advancing  Soracaya toward full construction, an important step in the Company's  strategy to grow its Bolivian production base. Details regarding the  full construction decision will be shared at a later stage.
 
 
 | Base-Case Total Mineral Resources at 10.0% ZnEq Cut-off |  | Tonnes | ZnEq | Zn | Pb | Cu | Ag | NSR |  | % | g/t | $248.82 |  | 4,137,000 | 31.62 | 1.23 | 7.23 | 0.09 | 259.76 | 
 
 Notes:
 1) The current Resource Estimate was prepared by Garth Kirkham, P.Geo., of Kirkham Geosystems Ltd.
 2)  All mineral resources have been estimated in accordance with Canadian  Institute of Mining and Metallurgy and Petroleum ("CIM") definitions, as  required under National Instrument 43-101 ("NI 43-101").
 3) The  Mineral Resource Estimate was prepared using a 10% zinc equivalent  cut-off grade. Cut-off grades were derived from $3.65/lb. copper,  $21.00/oz silver, $1.15/lb. zinc and $1.00/lb. lead. This cut-off grade  was based on current smelter agreements and total OPEX costs of  $156.00/t based on 2023 actual costs derived from the Porco mine data,  with process recoveries of 70.0% for copper, 80.0% for zinc, 70.0% for  lead, and 85% for silver. All prices are stated in $USD.
 4) An  Inferred Mineral Resource has a lower level of confidence than that  applying to an Indicated Mineral Resource and must not be converted to a  Mineral Reserve. It is reasonably expected that the majority of  Inferred Mineral Resources could be upgraded to Indicated Mineral  Resources with continued exploration.
 5) Mineral resources are not  mineral reserves until they have demonstrated economic viability.  Mineral resource estimates do not account for a resource's mineability,  selectivity, mining loss, or dilution. All figures are rounded to  reflect the relative accuracy of the estimate and therefore numbers may  not appear to add precisely.
 
 Analyst Coverage
 Santacruz  has engaged Atrium Research Corporation ("Atrium"), a leading company  sponsored research firm. Atrium will publish various research reports on  the Company based on publicly available information, industry data, and  discussions with management. Atrium will also host recorded interviews  with the Company's management team to present the investment case in an  interview format. In exchange for its research services, Atrium will  receive cash compensation in the amount of C$3,500 per month for the  services listed above. The services will be provided for twenty-four  months beginning on December 1st, 2025.
 
 Atrium and the  Company are arm's-length parties, and neither Atrium nor its insiders  hold any shares or options to purchase shares in the issued and  outstanding capital of the Company.
 
 Qualified Person
 Garth  Kirkham, P.Geo., an independent consultant to the Company, is a  qualified person under NI 43-101 and has approved the scientific and  technical information contained within this news release.
 
 About Santacruz 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 Zimapán mine.
 
 'signed'
 Arturo Préstamo Elizondo,
 Executive Chairman and CEO
 
 For further information please contact:
 
 Arturo Préstamo
 Santacruz Silver Mining Ltd.
 Email:  info@santacruzsilver.com
 Telephone: +52 81 83 785707
 
 Andrés Bedregal
 Santacruz Silver Mining Ltd.
 Email:  info@santacruzsilver.com
 Telephone: +591 22444849
 
 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.
 
 Forward-Looking Information
 This  news release includes certain statements and information that may  constitute forward-looking information within the meaning of applicable  Canadian securities laws. Forward-looking statements relate to future  events or future performance and reflect the expectations or beliefs of  the management of the Company regarding future events. Generally,  forward-looking statements and information can be identified by the use  of forward-looking terminology such as "intends", "expects" or  "anticipates", or variations of such words and phrases or statements  that certain actions, events or results "may", "could", "should",  "would" or will "potentially" or "likely" occur. This information and  these statements, referred to herein as "forward-looking statements",  are not historical facts, are made as of the date of this news release  and include without limitation, statements about the Company's Soracaya  Project, including the initiation of development activities and the pursuit of full production permitting.
 
 These  forward-looking statements involve numerous risks and uncertainties and  actual results might differ materially from results suggested in 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 extensive government  regulation, as well as those risk factors discussed or referred to in  the Company's disclosure documents filed with the securities regulatory  authorities in certain provinces of Canada and available at  www.sedarplus.ca.
 
 There  can be no assurance that any forward-looking information will prove to  be accurate, as actual results and future events could differ materially  from those anticipated in such statements. Accordingly, the reader  should not place any undue reliance on forward-looking information or  statements. The Company undertakes no obligation to update  forward-looking information or statements, other than as required by  applicable law.
 
 
  SOURCE:  Santacruz Silver Mining Ltd. |