Zacatecas Silver Receives Drill Permit and Finalizes Maiden Drill Program at Oso Negro, Sonora

(TSXV:ZAC, OTCQB:ZCTSF) Zacatecas Silver Corp. announced it has received the drill permit from SEMARNAT for its Oso Negro gold-silver project in Sonora, Mexico, completing the final regulatory requirement ahead of drilling. Surface access has been secured from the private landowner, with Oso Negro situated entirely on private land. The company has finalized a 2,500 metre maiden diamond drill program at the Prospecto and Tere vein systems, to be collared from 20 drill pads, with pads designed to allow multiple holes from each location to minimize pad construction and rig move costs. The drill program comprises shallow angled holes designed to intersect the vein between 40 to 80 vertical metres below rock chip outcrop samples that returned high gold and silver grades. Phase One and Phase Two rock chip sampling returned assays up to 20.3 g/t gold and 3,480 g/t silver from 510 samples across more than 3 kilometres of mapped vein strike. The company entered into a surface access agreement with the landowner on August 28, 2026 for an initial term of one year, renewable, covering the planned drill program. Oso Negro is an undrilled low sulphidation epithermal gold-silver vein system located in the northern Sonora epithermal belt, with geological mapping and surface sampling in 2026 extending the system to more than 3 kilometres of mapped vein strike across the Prospecto and Tere structures. Veins are up to 3 metres wide and multiphase, with common breccias and pervasive iron oxides after sulphides. Phase One rock chip sampling, reported June 9, 2026, returned assays up to 14.8 g/t gold and 2,340 g/t silver from 156 samples. Phase Two results, reported September 10, 2026, returned assays up to 20.3 g/t gold and 3,480 g/t silver from a further 354 samples, bringing the program total to 510 samples. Of the Phase Two samples, 63 returned between 1 and 20.3 g/t gold and 58 returned between 100 and 3,480 g/t silver. The Prospecto vein and its southeast splays are gold and silver mineralized along their full 600 metre mapped strike. CEO Eric Vanderleeuw stated that Oso Negro is ready to drill, with the permit and access agreed, and highlighted the advantage of collaring holes beneath veins mapped and sampled at grades up to 20.3 g/t gold and 3,480 g/t silver, only needing to go 40 to 80 metres beneath those samples to test them. He noted that shallow targets and multi-hole pads mean 2,500 metres allows for a large number of holes across the vein systems. This is the first drilling ever completed on the property. The company also has a growing portfolio with Lourdes, and two mineral resources at Panuco and Esperanza. The recent sampling results at Cumaro exceeded expectations and provided a second compelling drill target, with the permit application for Cumaro submitted. The Zacatecas Silver Project is located in Zacatecas State, within the Fresnillo silver belt, which has produced over 6.2 billion ounces of silver. The company holds 7,826 hectares of ground prospective for low-sulphidation and intermediate-sulphidation silver-base metal mineralization. A Mineral Resource Estimate at the Panuco deposit comprises 3.41 million tonnes at 187 g/t AgEq for 20.5 million ounces AgEq. Esperanza has a Measured and Indicated Mineral Resource Estimate of 45.4 million tonnes at 0.79 g/t AuEq (0.76 g/t gold and 8.5 g/t silver) for 1.15 million ounces AuEq (1.11 million ounces gold and 12.37 million ounces silver) and an Inferred Mineral Resource Estimate of 11.2 million tonnes at 0.57 g/t AuEq (0.53 g/t gold and 11.2 g/t silver) for 208 thousand ounces AuEq (190 thousand ounces gold and 4.02 million ounces silver). The company also holds four exploration properties in Sonora and Oaxaca, including Oso Negro, Cumaro, La Lola, and Ejutla. Zacatecas Silver has entered into an option to acquire a 100% interest in Lourdes, a 509-hectare low sulphidation epithermal gold-silver vein system. The technical information in the news release was reviewed and approved by Chris Wilson, Chief Geologist of Zacatecas Silver.

Zacatecas Silver Reports High-Grade Gold and Silver Rock Chip Sampling at Cumaro, Sonora, with Assays up to 40.6 g/t Gold and 253 g/t Silver

(TSXV:ZAC, OTCQB:ZCTSF) Zacatecas Silver Corp. reported results from a reconnaissance rock chip sampling program at its Cumaro gold-silver project in Sonora, Mexico. A total of 117 rock chip grab samples were collected from outcropping low sulphidation veins, focused on approximately 1.5 km of vein outcrop. More than 10 strike kilometres of veins are known at Cumaro, with the property remaining largely unsampled. Thirty-nine samples assayed above 1 g/t gold, and 12 of these assayed above 5 g/t gold. The highest grade sample returned 40.6 g/t gold. Thirty samples assayed above 1 oz/t silver (31.2 g/t silver), with a maximum of 253 g/t silver. Veins sampled are up to 4 m wide and multiphase, with common vein breccias and pervasive iron oxides after sulphides. High grade samples were returned over a contiguous strike length of 500 m. The company has commissioned high-resolution multispectral satellite imagery to guide an extensive follow-up rock chip and channel sampling program, to be conducted concurrently with permitting. A drill permit application has been submitted to SEMARNAT for a program of up to ten drill pads. Eric Vanderleeuw, Chief Executive Officer and Director, stated that Cumaro has outcropping veins, high-grade surface assays, and a system that has barely been sampled, with only 1.5 km of more than 10 km of known veins sampled so far. The company holds 7,826 hectares of ground prospective for low-sulphidation and intermediate-sulphidation silver-base metal mineralization in Zacatecas State, Mexico. At the Panuco deposit, a Mineral Resource Estimate comprises 3.41 million tonnes at 187 g/t AgEq for 20.5 million ounces AgEq. At Esperanza, a Measured and Indicated Mineral Resource Estimate is 45.4 million tonnes at 0.79 g/t AuEq (0.76 g/t gold and 8.5 g/t silver) for 1.15 million ounces AuEq (1.11 million ounces gold and 12.37 million ounces silver), and an Inferred Mineral Resource Estimate is 11.2 million tonnes at 0.57 g/t AuEq (0.53 g/t gold and 11.2 g/t silver) for 208 thousand ounces AuEq (190 thousand ounces gold and 4.02 million ounces silver). The company also holds four exploration properties in Sonora and Oaxaca, including Oso Negro, La Lola (1,183-hectare property with a 5 km structure up to 40 m wide), and Ejutla (10,603 hectares). Zacatecas Silver has entered into an option to acquire a 100% interest in the Lourdes project (509 hectares) in Guanajuato. The technical information in the release was reviewed and approved by Chris Wilson, Chief Geologist of Zacatecas Silver.

Zacatecas Silver Signs Option to Acquire the Lourdes Gold-Silver Project from Guanajuato Silver

(TSXV:ZAC, OTCQB:ZCTSF) Zacatecas Silver Corp. has entered into an option agreement with Guanajuato Silver Company Ltd. (TSXV:GSVR) and its subsidiary Mina Bolanitos, S.A. de C.V., under which Zacatecas Silver may acquire a 100% interest in the Lourdes gold-silver project in Guanajuato State, Mexico. Lourdes is a low sulphidation epithermal vein system in a historical mining district, with at least six mapped vein structures across three concessions totaling 509.00 hectares. The El Tigre vein, the principal target, has been mapped over approximately 770 metres of strike at surface with widths of 0.35 to 6.0 metres, and a silicified footwall stockwork zone measuring approximately 400 metres long and 15 to 30 metres wide. The only drilling on the project consists of seven shallow core holes totaling 1,424 metres completed in 2003–2004, with poor core recovery in the vein zones and the best intercept returning 0.7 g/t gold and 82 g/t silver over 0.4 metres. Between 2012 and 2013, Endeavour Silver Corp. completed geological mapping over 157.5 hectares, collected 1,093 rock chip samples, and completed trenching along several veins, with rock chip results ranging from below detection to 39.9 g/t gold and up to 378 g/t silver. The total consideration for the option is US$825,000 over two years, comprising US$225,000 in cash and US$600,000 in common shares, with no minimum exploration expenditure commitments. The payment schedule is US$75,000 cash and US$200,000 in shares on TSX Venture Exchange approval, US$75,000 cash and US$200,000 in shares on the first anniversary, and US$75,000 cash and US$200,000 in shares on the second anniversary. The Consideration Shares issued on approval will be at Market Price as defined by TSX Venture Exchange policies, while Deferred Shares will be issued at the greater of the Market Price (less maximum discount) or the 10-day VWAP, with any shortfall payable in cash. All Consideration Shares will be subject to a statutory hold period of four months and one day. Zacatecas Silver may accelerate the option payments at its discretion and will be the operator during the option period, responsible for all concession maintenance costs. Upon exercise, Mina Bolanitos will receive a 2.0% net smelter return (NSR) royalty, of which 1.0% may be purchased by Zacatecas Silver for US$1,000,000 at any time before production. The project is also subject to an existing 3.0% NSR royalty, of which 2.0% may be purchased for US$2,000,000. The agreement is subject to TSX Venture Exchange acceptance, and no finder’s fees are payable. Zacatecas Silver’s CEO and Director is Eric Vanderleeuw. The company’s Chief Geologist is Chris Wilson, B.Sc. (Hons), PhD, FAusIMM (CP), FSEG, FGS. Zacatecas Silver holds a portfolio of six projects across Mexico, including the Zacatecas Silver Project (7,826 hectares), Panuco (3.41 million tonnes at 187 g/t AgEq for 20.5 million ounces AgEq), Esperanza (Measured and Indicated: 45.4 million tonnes at 0.79 g/t AuEq for 1.15 million ounces AuEq; Inferred: 11.2 million tonnes at 0.57 g/t AuEq for 208,000 ounces AuEq), Oso Negro, Cumaro, La Lola (1,183 hectares), and Ejutla (10,603 hectares). The company plans to compile and review all historical data at Lourdes, carry out confirmation sampling, and refine drill targets below historical drilling depths.

Zacatecas Silver Announces Investor Relations Engagement

(TSXV:ZAC, OTC:ZCTSF, FRANKFURT:7TV) Zacatecas Silver Corp. has entered into an investor relations agreement dated April 17, 2026 with Capital Gain Media Inc. Under this agreement, Zacatecas Silver Corp. has re-engaged Capital Gain to provide content development and digital marketing services. The agreement will remain in effect for four months commencing on April 17, 2026. As consideration for the services provided by Capital Gain, Zacatecas Silver Corp. agreed to pay an aggregate upfront cash fee of $250,000, plus applicable taxes. Capital Gain provides investor relation services. As of the date of the announcement, to Zacatecas Silver Corp.'s knowledge, Capital Gain (including its directors and officers) does not own any securities of Zacatecas Silver Corp. and has an arm’s-length relationship with the company. The principal of Capital Gain is Graham Colmer. The announcement was made on behalf of Zacatecas Silver Corp. by Eric Vanderleeuw, Chief Executive Officer.

Zacatecas Silver Closes the Second Tranche of Non-Brokered Private Placement

(TSXV:ZAC) (OTCQB:ZCTSF) Zacatecas Silver Corp. has closed the second and final tranche of its previously announced non-brokered private placement by issuing 14,639,941 Units at $0.07 per Unit for gross proceeds of $1,024,795.87. Under the entire Offering, the Company issued a total of 35,714,142 Units at $0.07 per Unit for gross proceeds of $2,499,989.94.

Zacatecas Silver Expands Oso Negro to Over 3 Kilometres of Mapped Gold-Silver Veins; Phase Two Rock Chip Sampling Returns up to 20.3 g/t Gold and 3,480 g/t Silver

(TSXV:ZAC) (OTCQB:ZCTSF) Zacatecas Silver Corp. announced assay results from the second phase of rock chip sampling at its Oso Negro project in Sonora, Mexico. Phase Two returned individual grab samples grading up to 20.3 g/t gold and 3,480 g/t silver. The mapped vein system has been extended to more than 3 kilometres. Continuous gold-silver mineralization was confirmed along the full 600 metre strike length of the Prospecto vein. Both the Prospecto and Tere veins are now drill-ready.

Zacatecas Silver Closes the First Tranche of Non-Brokered Private Placement

(TSXV: ZAC | OTCQB: ZCTSF) Zacatecas Silver Corp. has closed the first tranche of its previously announced non-brokered private placement by issuing 21,074,201 Units at $0.07 per Unit for gross proceeds of $1,475,194.07. Each Unit consists of one common share and one Common Share purchase warrant, with each Warrant entitling the holder to purchase one additional Common Share at an exercise price of $0.09 for a period of two years from the closing date. The Company paid total finders fee of $66,933.58 and issued a total of 956,194 nontransferable share purchase warrants to finders, each exercisable at $0.09 for two years. Proceeds of the Offering will be used to fund the Company’s planned maiden drill program at the Oso Negro project in Sonora, Mexico, and continued exploration across the Company’s six-project Mexican portfolio. Zacatecas Silver holds 7,826 hectares of ground prospective for low-sulphidation and intermediate-sulphidation silver-base metal mineralization, and a Mineral Resource Estimate at the Panuco deposit comprises 3.41 million tonnes at 187 g/t AgEq for 20.5 million ounces AgEq. At Esperanza, the Company announced a Measured and Indicated Mineral Resource Estimate of 45.4 million tonnes at 0.79 g/t AuEq for 1.15 million ounces AuEq, and an Inferred Mineral Resource estimate of 11.2 million tonnes at 0.57 g/t AuEq for 208 thousand ounces AuEq. The company projects that a Preliminary Economic Assessment has commenced for the Esperanza Gold Project which will provide further information as to economic projections and assumptions related to the project.

Zacatecas Silver Announces Non-Brokered Private Placement of up to $2,500,000 to Advance Oso Negro Drill Program

(TSXV: ZAC | OTCQB: ZCTSF) Zacatecas Silver Corp. announced a non-brokered private placement of up to $2,500,000 to fund its maiden drill program at the Oso Negro project in Sonora, Mexico. The offering consists of units priced at $0.07, each including one common share and one warrant exercisable at $0.09 for two years, with all securities subject to a four-month-and-one-day hold period. Oso Negro features the Prospecto (2.5 km strike) and Tere (0.5 km strike) vein systems, with phase one sampling returning up to 14.8 g/t Au and 2,340 g/t Ag across 156 samples, and 391 rock-chip grab samples collected in phase two. The company has identified 20 drill pad locations at Oso Negro and completed ecological studies required for a SEMARNAT drill permit, with the application in progress. Zacatecas Silver holds six projects across Mexico, including the Zacatecas Silver Project with a Mineral Resource Estimate at the Panuco deposit of 3.41 million tonnes at 187 g/t AgEq for 20.5 million ounces AgEq, and the Esperanza project with a Measured and Indicated Mineral Resource Estimate of 45.4 million tonnes at 0.79 g/t AuEq for 1.15 million ounces AuEq. The company also holds four exploration properties in Sonora and Oaxaca, including Cumaro, La Lola, and Ejutla. The company projects that proceeds from the offering will fund the maiden drill program at Oso Negro, continued exploration and permitting activities across Zacatecas, Sonora, Morelos, and Oaxaca, and general working capital.

Zacatecas Silver Announces Completion of Phase Two Sampling at Oso Negro, Sonora

(TSXV: ZAC, OTCQB: ZCTSF) Zacatecas Silver Corp. announced the completion of a second phase of rock chip grab sampling and vein mapping at the Oso Negro project, located in Sonora, Mexico. The program was completed in the first week of July 2026, with 391 rock-chip grab samples collected primarily from vein outcrop at both the Prospecto and Tere vein systems. Phase one rock chip sampling at Oso Negro returned up to 14.8 g/t Au and 2,340 g/t Ag across 156 samples. The Prospecto vein system now comprises over 2.5 strike kilometres of mapped veins, while the Tere vein comprises approximately 0.5 strike kilometres. Zacatecas Silver holds 7,826 hectares of ground prospective for low-sulphidation and intermediate-sulphidation silver-base metal mineralization, and a Mineral Resource Estimate at the Panuco deposit comprises 3.41 million tonnes at 187 g/t AgEq for 20.5 million ounces AgEq. The company announced a Mineral Resource Estimate at Esperanza consisting of a Measured and Indicated Mineral Resource Estimate of 45.4 million tonnes at 0.79 g/t AuEq for 1.15 million ounces AuEq and an Inferred Mineral Resource estimate of 11.2 million tonnes at 0.57 g/t AuEq for 208 thousand ounces AuEq. The company will update on drill plans shortly and a Preliminary Economic Assessment has commenced for the Esperanza Gold Project.

Zacatecas Silver Announces 21% Increase in High-Grade Heap-Leach Updated Gold Mineral Resource at the Esperanza Gold Project to 1.15 Moz AuEq from 45.4 Mt at 0.79 g/t – Grades Above Global Heap-Leach Average & Highest Grades at Surface

(TSXV: ZAC | OTCQB: ZCTSF) Zacatecas Silver Corp. announced an increase in the updated Mineral Resource Estimate at the Esperanza Gold Project, effective April 6, 2026. The updated Pit-Constrained Measured & Indicated Mineral Resource is 45.4 Mt @ 0.79 g/t AuEq (0.76 g/t gold and 8.5 g/t silver) for 1.15 Moz AuEq (1.11 million ounces gold and 12.37 million ounces silver), representing a 21% increase in M&I AuEq ounces and a 49% increase in M&I tonnes versus the December 2022 MRE. The Inferred Mineral Resource is 11.2 Mt @ 0.57 g/t AuEq (0.53 g/t gold and 11.2 g/t silver) for 206 koz AuEq (190 thousand ounces gold and 4.02 million ounces silver), with tonnes up 28% versus the prior MRE. The Measured Mineral Resource category is 12.85 Mt @ 0.89 g/t Au, representing the most densely drilled and near-surface material. Metallurgical work supports 75% gold and 25% silver recoveries via heap leach, with a low 0.13 g/t AuEq cut-off. The company projects that the PEA will aim to quantify a low-capex and lower-cost operation, with mineralization remaining open at depth and along strike.

Zacatecas Silver Completes 2,027 Metre Diamond Drilling Program at El Cristo, Intersecting Multiphase Silver-Base Metal Veins Across 19 Holes — Assays Pending

(TSXV:ZAC) Zacatecas Silver Corp. announced the completion of its 2026 diamond drilling program at the El Cristo target, with 19 angled diamond drill holes totalling 2,027 m drilled over 32 days. Core recovery across mineralized zones exceeded 98%, and the program targeted shallow depth and strike extensions of the El Cristo intermediate sulphidation epithermal vein system. Previous drilling at El Cristo intercepted intervals including 9.53 m @ 175 g/t AgEq and 0.65 m @ 829 g/t AgEq. The Zacatecas Silver Project covers 7,826 hectares and is located in Zacatecas State, within the Fresnillo silver belt, which has produced over 6.2 billion ounces of silver. A Mineral Resource Estimate at the Panuco deposit comprises 3.41 million tonnes at 187 g/t AgEq for 20.5 million ounces AgEq. The Esperanza Gold Project hosts a Mineral Resource Estimate of 30.5 million tonnes at 0.97 g/t AuEq for 956 thousand ounces AuEq (Measured and Indicated) and 8.7 million tonnes at 0.98 g/t AuEq for 277 thousand ounces AuEq (Inferred). The company projects that assay results from the 2026 drilling campaign will be released as they are received and compiled.