Black Bear Minerals (ASX: BKB) Hits 501g/t Silver in Texas Expansion

Key Highlights:

• Black Bear hits 501g/t silver in drilling outside existing Shafter resource
• Step-out hole confirms mineralisation beyond 17.5Moz silver resource
• Drill intercept: 9.1m at 240g/t Ag including 1.5m at 501g/t Ag
• Polymetallic potential emerging with zinc, lead and gold credits
• Shares trading around $0.885 on March 6
  
   

High-grade silver has once again surfaced in the desert plains of Texas, offering fresh momentum for Black Bear Minerals and its Shafter Silver Project.

The company announced that recent drilling has intercepted strong silver mineralisation outside the project’s existing 17.5-million-ounce resource estimate, suggesting the system could extend further than previously mapped.

At the time of writing, Black Bear shares were trading at $0.885, up slightly on the day.

Source: MarketIndex 

For explorers working in mature mining districts, discoveries outside established resources can be particularly significant. They hint that the mineral system may still hold untapped extensions that earlier operators overlooked.

A breakthrough drill hole

The headline result comes from drill hole SFD002, which targeted a structural corridor that had received limited testing from previous exploration campaigns.

The hole returned:

• 9.1 metres at 240 grams per tonne silver, from 214.3 metres
• Including 1.5 metres at 501g/t silver
• With 1.1 percent lead and 1.8 percent zinc
  
   

The intercept is both wider and higher grade than nearby historical drill holes.

Black Bear Chief Executive Officer Dennis Lindgren said the results support the company’s exploration strategy.

“Great first results highlight the pure silver resource growth potential at Shafter beyond the existing Foreign MRE with SFD002 returning 9.1m at 240g/t Ag, including 1.5m strike at 501g/t Ag, and is wider and higher grade than nearby historic drilling,” Lindgren said.

“At these grades, step-out success has the potential to materially increase the existing Foreign MRE and polymetallic potential, providing strong leverage to an already defined resource base.”

In practical terms, the drill hole suggests the mineralised zone may thicken and strengthen as exploration moves beyond the previously defined boundaries.

A historic silver district

The Shafter project sits in Presidio County in southwest Texas, an area with a long history of silver mining.

The nearby Presidio Mine, which operated between 1883 and 1942, produced more than 35 million ounces of silver at an average grade of 521 grams per tonne, according to historical records cited by the company.

The current discovery echoes those historic grades. The 501g/t intercept recorded in SFD002 sits close to the average grade mined during the district’s peak production years.

Geologically, Shafter lies along the Eastern Sierra Madre Belt, a prolific mineral corridor stretching from northern Mexico into the southern United States. The belt hosts several large silver deposits, including the Peñasquito Mine, one of the world’s largest silver producers operated by Newmont.

Understanding the “manto” style deposit

One reason exploration companies remain interested in Shafter is the type of mineralisation found there.

The deposit hosts manto-style carbonate replacement mineralisation. In simple terms, mineral-rich fluids moving through underground fault systems replace sections of limestone with metal-bearing minerals.

These deposits often form tabular sheets or layers that can extend laterally for long distances.

At Shafter, the mineralised zone already spans around 4 kilometres of strike length, following a structural corridor linked to the MacDaniel Fault and the Mina Grande Fault.

The new drill hole targeted a parallel structural corridor east of the main fault system, and the early results suggest the mineralisation continues along this trend.

A polymetallic twist

While the Shafter resource estimate currently counts only silver, the latest drilling is revealing a more complex mix of metals.

Alongside the silver intercept, the SFD002 hole also contained:

• 4.3 percent zinc
• 2.0 percent lead
• 0.2 grams per tonne gold
  
   

Elsewhere in the drilling program, hole SFD011 returned zinc grades as high as 11 percent.

This combination suggests Shafter could evolve from a single-commodity silver project into a broader polymetallic system.

Black Bear has begun re-logging historic drill core to identify the distribution of these additional metals. If confirmed, they could be incorporated into a future resource update.

The company is targeting a maiden JORC-compliant resource estimate in the second quarter of 2026.

Silver’s changing role

The timing of the discovery also coincides with shifting dynamics in the silver market.

Traditionally viewed as a precious metal alongside gold, silver is increasingly valued for its industrial applications. It is widely used in solar panels, electronics, semiconductors and defence technologies due to its exceptional electrical conductivity.

According to industry data cited by the company, global mine supply has remained largely flat since 2016 while demand from renewable energy and electronics sectors continues to grow.

China’s recent restrictions on silver exports in October 2025 have further tightened supply, while the United States added silver to its critical minerals list in November 2025, highlighting its strategic importance.

For projects like Shafter, located in the United States, the shift could strengthen the case for domestic silver production.

Exploration continues

Black Bear says drilling will continue across several target zones within the project.

The current Phase 1 program is mapping the position of the mineralised Mina Grande Formation and identifying additional feeder faults that may host high-grade silver.

Future drilling will focus on testing these structural corridors and extending mineralisation beyond the current resource area.

The company ended December 2025 with $12.8 million in cash, providing funding for ongoing exploration at both the Shafter project and its Independence Gold Project in Nevada.

For now, the latest drilling suggests that a historic silver district in Texas may still have more stories to tell.

Source: Black Bear Minerals ASX announcement, March 6, 2026.