Unico Silver Limited (USL) has announced ongoing drilling achievements at its wholly owned Joaquin Project in Argentina during the June 2026 quarter, with high-grade gold-silver intercepts significantly extending mineralisation beyond the March 2026 Mineral Resource estimate. The company has finalized its exploration drilling program and is now advancing Pre-Feasibility Study (PFS) activities, targeting a maiden PFS release in late Q3 2026. Additionally, the quarter featured an upgrade of its US listing to the OTCQX Best Market and acquisition of the La Mata estancia, securing a key land position for project development.
Key Highlights
- Unico Silver Limited (USL) focuses on exploring and developing high-grade gold-silver epithermal deposits in Argentina's Santa Cruz province.
- During the June quarter, assays from 121 drill holes totaling 16,194 metres were reported, extending mineralisation at Breccia Puntudo, La Morocha SE, and La Negra SE prospects.
- Top drill results include 11.25 metres grading 1,301 gpt AgEq at Breccia Puntudo and 52.3 metres at 378 gpt AgEq at La Morocha SE, with exploration drilling complete and maiden PFS planned for late Q3 2026.
- The company holds A$55 million in cash and equivalents and secured the 10,172-hectare La Mata estancia via a US$12.0 million binding agreement, ensuring critical infrastructure locations for project advancement.
Record-Breaking Drill Intercepts Extend Mineralisation Across Multiple Prospects
In the June 2026 quarter, Unico Silver reported assay results from 121 drill holes totaling 16,194 metres at the Joaquin Project, part of a broader campaign comprising 268 holes and 38,661 metres since September 2025. These results revealed exceptional high-grade gold-silver zones extending well beyond the March 2026 Mineral Resource boundaries. Notably, all June quarter results lie outside the existing resource envelope, indicating strong potential for resource growth ahead of feasibility and development phases.
At Breccia Puntudo, hole JDD228-26 delivered the best intercept to date at this prospect, intersecting 11.25 metres at 1,301 gpt silver equivalent from 127.4 metres depth, including 6.8 metres grading 1,934 gpt AgEq from 131.2 metres. Additional significant results included hole JDD235-26 with 12.7 metres at 1,178 gpt AgEq from 56.9 metres and JDD256-26 intersecting 15.7 metres at 363 gpt AgEq from 84 metres. The infill and extension drilling along the 3.5-kilometre Breccia Puntudo structure confirmed high-grade gold mineralisation near surface, supporting conversion of Inferred to Indicated resources ahead of the feasibility study.
La Morocha SE Step-Out Drilling Reveals Increasing Grades at Depth
Extensional drilling at La Morocha SE yielded the prospect’s best intercept to date. Hole JDD276-26 intersected 52.3 metres at 378 gpt silver equivalent from 184.8 metres depth, including a high-grade zone of 8.5 metres at 1,813 gpt AgEq from 223.8 metres. Located 50 metres down-plunge from discovery hole JDD028-25, this confirms grade strengthening with depth along the mineralised structure. This significant mineralisation extension remains open at depth and along strike, indicating further exploration upside.
The La Morocha SE drilling highlights the prospect’s potential to host substantial mineral resources at depth. The grade intensification observed encourages resource expansion prospects for Joaquin Project. With mineralisation open vertically and laterally, La Morocha SE remains a key target for future exploration after the maiden PFS.
La Negra SE Oxide Mineralisation Expands Resource by Up to 250 Metres
Step-out drilling at La Negra SE returned extensive oxide gold-silver mineralisation extending up to 250 metres southeast beyond the March 2026 Resource boundary. Key results include hole JDD171-26 intersecting 73 metres at 90 gpt AgEq from 21 metres depth, JDD240-26 with 78 metres at 137 gpt AgEq from 91 metres, and JDD267-26 intersecting 74.2 metres at 94 gpt AgEq from 1.8 metres below surface. The oxide nature of mineralisation is significant due to simpler metallurgical processing compared to sulphide ores, potentially reducing operational costs.
These broad mineralised zones and shallow dips suggest La Negra SE may contain substantial lower-cost oxide ore. The step-out drilling confirms mineralisation remains open at depth and along strike, supporting resource growth potential and highlighting the scale of the Joaquin mineralised system.
Exploration Program Completion and Shift to Pre-Feasibility Study Activities
Unico Silver has completed its current exploration drilling at Joaquin, marking a transition from exploration to development-focused work. Since September 2025, 268 drill holes totaling 38,661 metres have been reported, providing a robust geological dataset for resource definition and mine planning. This data underpins technical studies underway for the maiden PFS scheduled for late Q3 2026.
Following drilling completion, focus has shifted to PFS-related workstreams such as geotechnical drilling, Phase 2 baseline environmental studies, and hydrological water-exploration drilling. These efforts are critical to defining engineering, environmental, and operational parameters for the feasibility study. Exploration drilling is expected to resume in Q3 2026 to potentially support resource extension or conversion. This marks a pivotal phase in the project lifecycle.
Upgrade to OTCQX Best Market Enhances North American Investor Access
During the June 2026 quarter, Unico Silver upgraded its US listing from the OTCQB Venture Market to the OTCQX Best Market, trading under ticker "USLRF". This upgrade expands the company's visibility and accessibility to North American investors, as OTCQX is the premier over-the-counter market tier reserved for companies meeting stringent financial and governance standards. The enhanced listing improves share liquidity and investor confidence.
This advancement reflects the Joaquin Project’s maturation and the company’s progression toward development stages. North America is a major market for precious metals investment, and improved access supports capital raising and strategic financing as Unico Silver advances through pre-feasibility and subsequent project phases.
Acquisition of La Mata Estancia Secures Essential Land for Infrastructure
On 9 July 2026, after the June quarter, Unico Silver announced a binding agreement to acquire 100% of the La Mata estancia via its Argentine subsidiary, Unico Silver Argentina SA. The acquisition includes approximately 10,172 hectares of strategically located freehold land for US$12.0 million. This secures critical land hosting La Morocha and La Negra Mineral Resources and preferred sites for key infrastructure such as the processing plant, Tailings Storage Facility, and haul roads.
This acquisition converts prior surface-rights arrangements covering about 1,250 hectares into direct freehold ownership of a much larger area, eliminating permitting and operational risks. Full ownership enables direct control over land use and infrastructure placement, removing the need for ongoing third-party agreements as the project advances through feasibility, construction, and operation. This milestone significantly reduces execution risk for the Joaquin Project.
Joaquin Project’s Strategic Location in Santa Cruz Province, Argentina
Unico Silver’s core exploration assets, the Joaquin and Cerro Leon projects, are situated in Santa Cruz province, Argentina, a region known for multi-million-ounce gold and silver epithermal vein deposits. The Joaquin Project lies near AngloGold Ashanti’s Cerro Vanguardia mine, connected by public Route 12. This established mining district offers infrastructure, supply chains, and regulatory familiarity, providing operational and development advantages.
Santa Cruz hosts multiple successful large-scale gold and silver operations, offering a stable environment for Unico Silver’s development activities. Proximity to Cerro Vanguardia provides benchmarks for mining costs, operations, and economic feasibility. The proven regional mineral endowment reduces exploration risk and supports confidence in the high-grade intercepts and resource estimates reported.
Strong Financial Position Supports Pre-Feasibility Study Progress
At the end of June 2026, Unico Silver held A$55 million in cash and equivalents, providing ample funding to advance the PFS and progress the Joaquin Project toward feasibility and potential development financing. This cash reserve enables self-funding of technical studies required to define project economics and operational parameters without immediate capital raising.
The A$55 million cash balance offers a multi-year runway to complete the maiden PFS by late Q3 2026 and potentially initiate early development activities, including updated resource estimates, engineering work, and environmental and social approvals. This financial strength complements the company’s capital-efficient exploration strategy, which has generated extensive drilling data since September 2025, reducing near-term funding risks and allowing flexibility for project advancement.
Open Mineralisation at Depth and Along Strike Indicates Resource Growth Potential Beyond PFS
June quarter drilling results consistently show mineralisation remains open both at depth and laterally across multiple Joaquin prospects. At Breccia Puntudo, drilling along the 3.5-kilometre structure confirmed high-grade gold near surface but has yet to define full vertical or lateral extents. At La Morocha SE, strongest grades in hole JDD276-26 occur at depth, suggesting potential for further expansion below current drilling limits. At La Negra SE, step-out drilling extending 250 metres southeast of the March 2026 Resource boundary indicates ongoing exploration upside.
This open mineralisation geometry across prospects offers significant resource expansion potential beyond the March 2026 Mineral Resource and the maiden PFS. The June quarter assay results all fall outside the March resource envelope, implying the PFS will be based on a conservative resource footprint. Future drilling after PFS completion may enable material resource growth and upward revision of project scale and economics. The geological setting supports a strong resource expansion outlook as development advances.