Impact Silver Intersects 18.03% ZnEq over 2.60m Including 23.70% ZnEq over 0.73m at the Plomosas Mine
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July 29, 2025 11:36 AM EDT | Source: IMPACT Silver Corp.
Vancouver, British Columbia--(Newsfile Corp. - July 29, 2025) - IMPACT Silver Corp. (TSXV: IPT) (OTCQB: ISVLF) (FSE: IKL) ("IMPACT" or the "Company") is pleased to announce results from its initial underground drill program in the Santo Domingo Zone at its Plomosas zinc (lead-silver) Mine in northern Mexico.
SANTO DOMINGO ZONE DRILLING
First IMPACT drill intersections from the Santo Domingo Zone of the Plomosas Mine are as follows:
| TABLE 1: SANTO DOMINGO ZONE DRILL RESULTS | | Hole No. | From (metres) | To (metres) | Interval (metres) | Estimated True Width (metres) | Zinc
(%) | Lead
(%) | Silver
(g/t) | ZnEq*
(%) | | UGSD-2501 | 59.50 | 63.00 | 3.50 | 3.32 | 6.35 | 1.56 | 8.06 | 7.64 | | Including | 61.50 | 63.00 | 1.50 | 1.42 | 12.50 | 2.56 | 14.80 | 14.66 | | UGSD-2502 | 70.41 | 82.50 | 12.09 | 10.68 | 4.13 | 2.32 | 10.02 | 5.97 | | Including | 71.91 | 76.50 | 4.59 | 4.06 | 8.37 | 3.59 | 16.36 | 11.25 | | Including | 71.91 | 72.53 | 0.62 | 0.55 | 23.30 | 15.00 | 54.10 | 34.78 | | Including | 74.45 | 75.00 | 0.55 | 0.49 | 15.40 | 7.45 | 29.10 | 21.19 | | UGSD-2504 | 47.06 | 48.18 | 1.12 | 0.89 | 9.03 | 21.20 | 30.10 | 23.56 | | UGSD-2505 | 74.40 | 77.82 | 3.42 | 2.60 | 11.08 | 9.24 | 30.00 | 18.03 | | Including | 76.86 | 77.82 | 0.96 | 0.73 | 12.50 | 15.55 | 37.00 | 23.70 |
*Zinc Equivalent (ZnEq) is calculated using recent metal prices of US$1.21/lb Zn, US$0.88/lb Pb and US$38.07/oz Ag, and metal recoveries of 88.9% Zn, 77.3% Pb, and 71.3% Ag based on recent Plomosas production mill recoveries. Metal equivalence values allow for easier comparison of mineral zones with multiple metals reporting.
True width estimates are interpreted from current geological models. These Santo Domingo drill holes are located north of IMPACT's active mine workings in the Plomosas Mine (see Figures 2&3). All these Santo Domingo drill intersections lie outside the JORC mineral resource blocks published by the previous operator (see IMPACT news release dated April 3, 2023 for details). Santo Domingo Zone mineralization remains open for exploration and drilling is continuing.
CEO STATEMENT
President and CEO Frederick Davidson commented, "Finding high-grade mineralization on this extension of the Santo Domingo Zone beyond the mine workings, adds yet more upside to the Plomosas Mine. Before this drilling, this area had not figured into our mining plans but with the zone located close to our active mine workings at Plomosas, it represents another area where we can quickly add high-grade production. Drilling is continuing with the aim to define additional resources on multiple zones at Plomosas."
PLOMOSAS MINE GEOLOGY AND MINERALIZATION
The Plomosas mine, a historic high-grade zinc producer in northern Mexico (Figure 1), was acquired in 2023 by the Company. Recent drill programs have been undertaken on extensions of active mine areas in the Tres Amigos area and nearby in the Juarez and Santo Domingo areas, where drilling continues (see Figure 2). Mineralization at the Plomosas mine occurs as zinc-rich Carbonate Replacement zones in three bedrock units - the Mina Vieja marble (Tres Amigos Zone), the Juarez limestone (Juarez Zone) and in carbonate layers within the Cuesta Shale (Santo Domingo Zone) - where structural ground preparation along these units accommodated concentrations of zinc, lead, and silver (see Figure 3).
ABOUT IMPACT SILVER
IMPACT Silver Corp. (TSXV: IPT) is a successful producer-explorer with two mining projects in Mexico.
- Royal Mines of Zacualpan Silver-Gold District: IMPACT owns 100% of the 211 km2 Zacualpan project in central Mexico where four producing underground silver mines and one open pit mine feed the central 500 tpd Guadalupe processing plant. To the south, the Capire Project includes a 200 tpd processing pilot plant adjacent to an open pit silver mine with an NI?43-101 inferred mineral resource of over 4.5?million oz silver, 48 million lbs zinc and 21 million lbs lead (see IMPACT news release dated January 18, 2016, for details and QP statement). Company engineers are reviewing Capire for a potential restart of operations to leverage improving commodity prices. Over the past 18 years, IMPACT has developed multiple exploration zones into commercial production and has produced over 13 million ounces of silver, generating revenue of more than $284 million, with no long-term debt.
- Plomosas Zinc-Lead-Silver District: Plomosas is a high-grade zinc producer in northern Mexico with exceptional exploration upside potential. In late 2023, the Company restarted mining operations and is ramping up production toward design capacity levels. Exploration potential at Plomosas is exceptional along the 6 km-long structure. This is in addition to other exploration targets on the 3,019-hectare property including untested copper-gold targets with indications of high-grade material at surface. Regionally, Plomosas lies in the same belt as some of the largest carbonate replacement deposits in the world.
Quality Control/Quality Assurance
Drill core was NTW size (5.71 cm diameter). Half core samples were collected with a rock saw and tagged for identification. All samples were securely stored at the Plomosas Mine until shipment. A total of 5% certified assay standards and 5% blanks were inserted into every sample shipment as a quality control measure. All samples were shipped to the ALS preparation laboratory in Chihuahua, Mexico, where they were fine crushed (70% passing a 2 mm screen), pulverized (85% passing a 75 micron screen) and pulp split separated for assay. These pulps were shipped to the ALS laboratory in North Vancouver, Canada, where a 10 gram split was aqua regia digested and then analyzed for 36 elements including zinc, lead and silver by ICP-AES spectrometry (ALS code ME-ICP41). Assays for base metals >1% used an overlimit ICP-AES method (ALS code OG46). ALS is an independent, international ISO/IEC 17025 accredited laboratory.
Qualified Person and NI 43-101 Disclosure
Silvia Kohler, P. Geo., a Senior Geologist employed by IMPACT Silver Corp. and a "Qualified Person" within the meaning of NI-43101, has approved the technical information contained in this news release.
Additional information about IMPACT and its operations can be found on the Company website at www.IMPACTSilver.com. Follow us on X (formerly Twitter) @IMPACT_Silver and LinkedIn at https://www.linkedin.com/company/impactsilver
On behalf of IMPACT Silver Corp.
"Frederick W. Davidson"
President & CEO
For more information, please contact:
Jerry Huang
CFO | Investor Relations
O: (604) 681 0172 or inquiries@impactsilver.com
C: (778) 867 7909 Direct
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.
Forward-Looking and Cautionary Statements
This IMPACT News Release may contain certain "forward-looking" statements and information relating to IMPACT that is based on the beliefs of IMPACT management, as well as assumptions made by and information currently available to IMPACT management. Forward-looking information is often, but not always, identified by the use of words such as "seek", "anticipate", "plan", "continue", "planned", "expect", "project", "predict", "potential", "targeting", "intends", "believe", "potential", and similar expressions, or describes a "goal", or variation of such words and phrases or state that certain actions, events or results "may", "should", "could", "would", "might" or "will" be taken, occur or be achieved. Such statements include, but are not limited to, statements regarding interpretation of drill results, activity at the projects and estimated timing thereof, the potential for defining and extending the known mineralization, exploration potential on the properties, and plans for drilling and future operations at the Company's projects or plans for financing.
Such forward-looking information involves known and unknown risks and assumptions, including with respect to, without limitation, exploration and development risks, expenditure and financing requirements, title matters, operating hazards, extreme weather events, criminal activity, metal prices, political and economic factors, community relations, competitive factors, general economic conditions, relationships with vendors and strategic partners, governmental regulation and supervision, seasonality, technological change, industry practices, pandemics and one-time events. Should any one or more risks or uncertainties materialize or change, or should any underlying assumptions prove incorrect, actual results and forward-looking statements may vary materially from those described herein. IMPACT does not assume the obligation to update any forward-looking statement or beliefs, opinions, projections or other factors, except as required by law.
The Company's decision to place a mine into production, expand a mine, make other production related decisions or otherwise carry out mining and processing operations, is largely based on internal non-public Company data and reports based on exploration, development and mining work by the Company's geologists and engineers. The results of this work are evident in the discovery and building of multiple mines for the Company at Zacualpan and in the track record of mineral production and financial returns of the Company since 2006. Under NI 43-101, the Company is required to disclose that it has not based its production decisions on NI 43-101 mineral resources or reserve estimates, preliminary economic assessments or feasibility studies, and historically such projects have increased uncertainty and risk of failure.
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Figure 1: Location map of Plomosas Mine and nearby mines and infrastructure. References to nearby projects are for information purposes only and there are no assurances that Plomosas will achieve similar results.
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Figure 2: Plan map of the Plomosas Mine workings.
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Figure 3: Schematic cross section of the Santo Domingo Zone geology and mineralization showing new drill intersections.
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 SOURCE: IMPACT Silver Corp. |
