American Antimony Corporation Confirms World-Class Intercept: 87 m (285 ft) @ 1.46% Sb, Including up to 5.59% Sb and 1.33 g/t Au, with Exceptionally Low Arsenic (<50 ppm), and Expands District-Scale Potential at the American Antimony Project, Bernice Canyon, Nevada

Rhea-AI Summary

American Antimony (OTC:XTPT) reports Phase One drill results from the Bernice Canyon Project, Nevada (October 3, 2025).

Key certified assays: BC25-03: 87 m @ 1.46% Sb (up to 5.59% Sb) with average 0.27 g/t Au and max 1.33 g/t Au; arsenic values reported as exceptionally low (<50 ppm). Fourteen RC holes (5,570 ft / 1,697.7 m) completed; 10 of 14 intersected the felsite dike. Company maps a continuous 3.2 km felsite dike corridor hosting stibnite mineralization; drilling confirms ~500 ft vertical continuity. Only 330 acres tested of a 4,153-acre land package.

Positive

• BC25-03: 87 m @ 1.46% Sb (up to 5.59% Sb)
• Felsite dike continuity mapped over 3.2 km strike
• Arsenic exceptionally low: <50 ppm (favorable metallurgy)
• Phase One: 14 RC holes totaling 5,570 ft drilled

Negative

• Only 330 acres tested of 4,153-acre land package (≈8%)
• No NI 43-101 resource or reserve estimate reported yet

AUSTIN, TX / ACCESS Newswire / October 3, 2025 / American Antimony Corporation, operating as Xtra Energy Corporation (OTC:XTPT), is pleased to report certified laboratory results from its Phase One drilling campaign at the flagship American Antimony Project in Nevada's historic Bernice Canyon District. Results confirm world-class intercepts and establish the district-wide continuity of a minimum 3.2 km felsite dike system hosting extensive stibnite (antimony sulfide) mineralization with associated gold. This felsite dike system has the potential to rank among the richest antimony deposits worldwide, with the added advantage of exceptionally low arsenic levels (<50 ppm in most intervals), supporting clean metallurgy and favorable processing economics.

Drilling Program Summary

• 14 reverse circulation (RC) drill holes completed, totaling 5,570 feet (1,697.7 meters), with depths ranging 300-800 ft (61-232 m).

• 10 of 14 holes intersected the targeted felsite dike, confirming strong structural and geochemical continuity.

• Results include some of the thickest and highest-grade antimony zones documented in the U.S. in decades.

• The felsite dike swarm extends from the Arrance Mine through IHX and south to King Solomon, defining a continuous 3.2 km (2-mile) mineralized corridor.

Figure 1. Preliminary Geologic Map of the Bernice Canyon Project Showing the Extent of the Felsite Dike, and Drill Holes.

Key Intercepts (Certified Lab Assays)

• BC25-03 - Arrance Core Zone ("Spectacular Intercept")

  • 87 m (285 ft) continuous felsite-hosted mineralization (103.6-190.5 m).

  • Average 1.46% Sb (14,600 ppm), up to 5.59% Sb, with many in-situ assays between 2%-3% Sb.

  • Gold up to 1.33 g/t Au; average 0.27 g/t Au across the interval.

  • Confirms vertical continuity of mineralization to ~500 ft depth.

• BC25-11 - Central Corridor

  • 12.3 m @ 1.06% Sb and 0.18 g/t Au (134.1-146.4 m).

  • Supports increasing grade and thickness with depth.

• BC25-02 - Arrance (Lower Adit)

  • 7.6 m @ 1.08% Sb with gold credits.

  • First laboratory-confirmed Sb intercept of the program.

• BC25-05 - Arrance True Width Test

  • 7.6 m @ 0.72% Sb and 0.33 g/t Au.

  • Confirms true dike width ~25 ft (7.6 m).

• BC25-01 & BC25-04 - Peripheral Step-Outs

  • Sb assays up to 0.39% Sb (3,893 ppm) with gold up to 0.43 g/t.

  • Confirm zoning and southern strike continuity.

Geological Insights & Global Comparatives

Drilling results confirm that felsite dike swarms are the principal host of stibnite (Sb₂S₃) mineralization at Bernice Canyon. This setting directly compares to two globally significant Sb systems:

• Xikuangshan Sb Deposit, China - The world's largest antimony deposit, Xikuangshan is similarly hosted in felsic dikes that acted as conduits for Sb-rich hydrothermal fluids. The Bernice Canyon intercepts, particularly BC25-03 (87 m @ 1.46% Sb), demonstrate thickness and grade on par with Xikuangshan's productive zones, underscoring Nevada's potential for large-scale, in situ antimony resources.

• Schlaining Ore District, Austria - A historic European producer that supplied antimony for over 200 years, Schlaining's mineralization is likewise dike-hosted, marked by quartz-carbonate-stibnite veining and disseminated stibnite along altered felsite contacts. Its longevity highlights the durability and economic importance of felsite-hosted Sb systems.

Together, these analogues confirm Bernice Canyon's felsite dike system-mapped over 3.2 km of strike length and open in all directions-is geologically consistent with some of the largest and most enduring antimony-producing regions worldwide.

Critically, arsenic values remain exceptionally low (<50 ppm in most intervals), offering a metallurgical advantage for clean, market-ready concentrates.

Figure 2. Photo of the felsite dike containing clots and spherules of stibnite (Sb₂S₃) with minor pyrite. Minor fractures have been invaded by iron oxides.

Management Commentary

"These Phase One drill results mark a breakthrough moment for American Antimony/Xtra Energy," said Mac J. Shahsavar, P.Eng., Chairman & CEO. "Hole BC25-03 demonstrates the thickness and grade required to classify Arrance as a world-class antimony system. Combined with results across 14 holes, we now confirm district-wide continuity of felsite dike-hosted mineralization spanning at least 3.2 kilometers. The combination of scale, clean metallurgy, and associated gold credits positions us at the forefront of developing a strategically important U.S. domestic source of antimony."

Shahsavar added: "The Antimony King Mine, while not yet fully tested, represents a different style of mineralization with the potential to host an even larger deposit than the Arrance-IHX-King Solomon corridor. Importantly, only 4 of 22 historic mines on our claims have been tested to date-less than 8% of our 4,153-acre land package. Phase One drilling has covered just 330 acres, underscoring that the discovery potential at Bernice Canyon remains truly immense."

About American Antimony Corporation

Operating as Xtra Energy Corp. (OTC PINK:XTPT) a U.S.-based mineral resource company focused on advancing critical mineral supply chain independence. The Company's primary asset focus is antimony, a federally designated critical mineral essential to defense, semiconductors, and energy storage applications. Xtra Energy is developing a portfolio of high-grade, U.S.-based projects with near-term production potential, aimed at delivering scalable domestic supply solutions in alignment with national security and industrial priorities.

Contact & Learn More:
Xtra Energy Corporation
Phone: 512-412-3636

Email:secretary@americanantimony.com
Website: www.americanantimony.com

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FORWARD-LOOKING STATEMENTS:
This press release contains forward-looking statements as defined within Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These statements relate to future events, including our ability to raise capital, or to our future financial performance, and involve known and unknown risks, uncertainties and other factors that may cause materially different results, levels of activity, performance or achievements expressed or implied by these forward-looking statements. You should not place undue reliance on forward-looking statements since they involve known and unknown risks, uncertainties and other factors which are, in some cases, beyond our control and which could, and likely will, materially affect actual results, levels of activity, performance or achievements. Any forward-looking statement reflects our current views with respect to future events and is subject to these and other risks, uncertainties and assumptions relating to our operations, results of operations, growth strategy and liquidity. We assume no obligation to publicly update or revise these forward-looking statements for any reason, or to update the reasons actual results could differ materially from those anticipated in these forward-looking statements, even if new information becomes available in the future.

For a discussion of these risks and uncertainties, please see our filings with the OTC Markets Group Inc. Our public filings with the OTC Markets Group Inc are available from commercial document retrieval services and at the website maintained by the OTC Markets at https://www.otcmarkets.com/stock/XTPT/disclosure.

SOURCE: Xtra Energy Corp.

View the original press release on ACCESS Newswire

FAQ

What did American Antimony (XTPT) announce on October 3, 2025 about BC25-03?

Hole BC25-03 returned 87 m @ 1.46% Sb (up to 5.59% Sb) with average 0.27 g/t Au and max 1.33 g/t Au.

How extensive is the mineralized corridor at Bernice Canyon reported by XTPT?

Company reports a continuous felsite dike corridor of at least 3.2 km strike, open in all directions.

What drilling was completed in XTPT's Phase One program and when?

Phase One (reported Oct 3, 2025) completed 14 RC holes totaling 5,570 ft across Bernice Canyon.

How low are arsenic levels in the Bernice Canyon assays announced by XTPT?

The press release states arsenic values are exceptionally low (<50 ppm), aiding clean metallurgy.

Does XTPT have a resource estimate for Bernice Canyon after these results?

No resource (NI 43-101 or equivalent) or reserve estimate was reported in the October 3, 2025 release.

How much of XTPT's Bernice Canyon land package has been drill-tested to date?

Phase One drilling covered 330 acres, which is about 8% of the 4,153-acre land package.