Abrasilver Resource Stock Price, News & Analysis

AbraSilver Resource Corp (OTCQX: ABBRF) is a basic materials company in the other precious metals and mining industry. According to company disclosures, AbraSilver is an advanced-stage exploration company focused on rapidly advancing its 100%-owned Diablillos silver-gold project in the mining-friendly Salta Province of Argentina. The company is also listed on the Toronto Stock Exchange under the symbol ABRA.

Core focus: Diablillos silver-gold project

The Diablillos property is located within the Puna region of Argentina, in the southern part of Salta Province along the border with Catamarca Province, approximately 160 km southwest of the city of Salta and 375 km northwest of the city of Catamarca. AbraSilver acquired the property in 2016. The project comprises 15 contiguous and overlapping mineral concessions with year-round road access.

Exploration work at Diablillos has outlined multiple occurrences of epithermal silver-gold oxide mineralization at several zones, including Oculto, JAC, Laderas, Fantasma and Sombra, generally located within a 500 m to 1.5 km distance surrounding the Oculto/JAC epicentre. To date, company reports state that over 150,000 metres of drilling have been completed on the property, supporting a substantial Mineral Resource estimate.

Mineral Resource estimate and project scale

AbraSilver reports that the updated Mineral Resource estimate ("MRE") for Diablillos, effective July 21, 2025, totals approximately 104 million tonnes of oxide material in the Measured and Indicated categories, combining tank leach and heap leach material. This material contains an estimated 199 million ounces of silver and 1.72 million ounces of gold, or about 349.9 million ounces silver-equivalent (AgEq), using the company’s stated silver-equivalent methodology.

Within this total, the tank leach Mineral Resource estimate is reported as 73.1 Mt grading 79 g/t silver and 0.66 g/t gold, containing approximately 186 Moz silver and 1.55 Moz gold (327.1 Moz AgEq). The maiden heap leach Mineral Resource adds 30.8 Mt grading 13 g/t silver and 0.16 g/t gold, containing about 12.6 Moz silver and 0.16 Moz gold (22.8 Moz AgEq). All Mineral Resources are stated as oxides constrained within conceptual Whittle open pits, and the company emphasizes that Mineral Resources are not Mineral Reserves and have not demonstrated economic viability.

Key deposits within Diablillos

The Diablillos project is described as comprising five oxide deposits with defined Mineral Resources:

• Oculto – the largest deposit, with Measured and Indicated tank leach resources of 57.4 Mt grading 67 g/t Ag and 0.82 g/t Au (approximately 123.3 Moz Ag and 1.51 Moz Au, or 260.1 Moz AgEq).
• JAC – a high-grade, near-surface silver-dominant zone with Measured and Indicated tank leach resources of 13.1 Mt grading 139 g/t Ag and 0.06 g/t Au (about 58.5 Moz Ag and 0.03 Moz Au, or 61.0 Moz AgEq).
• Fantasma – an additional oxide zone with Measured and Indicated tank leach resources of 1.0 Mt grading 72 g/t Ag (about 2.4 Moz Ag).
• Laderas – an oxide zone with Measured and Indicated tank leach resources of 0.8 Mt grading 17 g/t Ag and 0.67 g/t Au (about 0.43 Moz Ag and 0.02 Moz Au).
• Sombra – a newer oxide zone with Measured and Indicated tank leach resources of 0.8 Mt grading 54 g/t Ag and 0.12 g/t Au (about 1.32 Moz Ag and 0.003 Moz Au).

Inferred oxide Mineral Resources across the project total 19.6 Mt grading 21 g/t Ag and 0.38 g/t Au (about 13.4 Moz Ag and 0.24 Moz Au, or 33.5 Moz AgEq). The company notes that the Mineral Resource model was prepared in accordance with CIM Definition Standards and that the estimate was completed by an independent Qualified Person under NI 43-101.

Exploration strategy and drilling programs

AbraSilver’s disclosures describe a multi-phase drilling strategy aimed at expanding and upgrading Mineral Resources and testing new targets across the Diablillos district. The company has completed a Phase V drill program and reports that these results will be incorporated into updated Mineral Resource estimates and a Definitive Feasibility Study (DFS). A Phase VI diamond drill program of approximately 15,000 metres and about 50 holes has commenced, with two drill rigs active.

The Phase VI program is designed to:

• Expand and upgrade Mineral Resources within and beyond existing conceptual open pit limits at Oculto East, Oculto Northeast, Cerro Bayo and JAC.
• Evaluate sulphide-hosted and porphyry-style mineralization at deeper targets such as Oculto Deep and Cerro Viejo.
• Test additional exploration targets across the broader Diablillos district, including the Condoryacu area, where AbraSilver has entered into an option agreement to acquire the property.
• Drill at JAC, Sombra and Fantasma to assess extensions of known mineralization and continuity between deposits.

Company news releases highlight repeated broad intervals of oxide-hosted gold and silver mineralization at Oculto East and JAC, as well as transitional and sulphide zones with gold, copper and molybdenum that may be related to deeper porphyry systems. Examples include multi-hundred metre gold intercepts at Oculto East and near-surface silver intercepts at JAC.

Porphyry potential and satellite targets

In addition to the oxide resources, AbraSilver reports the presence of a large porphyry complex centered approximately 4 km northeast of Oculto, including outcropping porphyry intrusions within a major alteration zone and associated gold-rich epithermal mineralization. Drilling at targets such as Cerro Viejo and Cerro Blanco has intersected broad zones of gold and copper mineralization interpreted as the upper levels of a mineralized porphyry system.

At Oculto East, deep drilling has intersected extensive gold intervals with associated copper and molybdenum in sulphide zones, along with alteration assemblages described as consistent with the upper portions of porphyry systems. The company interprets these features as vectors toward potential porphyry centers beneath the known oxide mineralization.

Regulatory framework and technical reporting

AbraSilver has filed a NI 43-101 Technical Report, Mineral Resource Estimate for the Diablillos Ag-Au Project, dated September 12, 2025 with an effective date of July 29, 2025. The report supports the updated Mineral Resource estimate and is available on the SEDAR+ platform and on the company’s own channels, according to its news releases. The company emphasizes that the Mineral Resources are reported within Whittle-constrained conceptual open pits using specified metal prices, recoveries, costs and slope assumptions, and that mining recovery and dilution factors have not been applied.

Footnotes to the Mineral Resource tables describe the silver-equivalent (AgEq) calculation, the use of Ordinary Kriging within three-dimensional block models, domain definitions based on lithology and alteration, and the application of capping to composite grades. The company also notes that the independent Qualified Person is not aware of environmental, permitting, legal, title, taxation, socio-political, marketing or other relevant issues that could materially affect the potential development of the Mineral Resource, based on the information reviewed.

Exploration practices and QA/QC

AbraSilver describes its exploration and sampling procedures as following industry standard methodologies. Drill core is transported from drill platforms to logging facilities, where it is logged, photographed and split by diamond saw prior to sampling. Samples are bagged and quality control materials, including blanks, certified reference materials and duplicate core samples, are inserted at regular intervals to assess precision and reproducibility.

Sample preparation is carried out at the ASA (Alex Stewart Argentina) laboratory in Salta, with pulps dispatched to ASA’s facility in Mendoza, Argentina for analysis. Multi-element analysis is performed using four-acid digestion followed by ICP/AES detection, and gold is analyzed by 50 g fire assay with an AAS finish. Silver results greater than 100 g/t are re-analyzed using four-acid digestion with an ore-grade AAS finish. The company states that all figures are rounded to reflect the relative accuracy of the estimates.

Corporate positioning and additional assets

AbraSilver describes itself as being led by an experienced management team with long-term supportive shareholders. Beyond Diablillos, the company reports having an earn-in option and joint venture agreement with Teck on the La Coipita project, located in the San Juan Province of Argentina. Diablillos remains the flagship asset and the focus of the company’s advanced exploration and development work.

Status and listing

Based on the provided disclosures, AbraSilver Resource Corp is an active exploration-stage issuer with its primary listing on the Toronto Stock Exchange (symbol ABRA) and a U.S. quotation on the OTCQX market under the symbol ABBRF. No information in the supplied materials indicates a delisting, completed merger, or bankruptcy for the company.