# Locksley Confirms High-Grade Rare Earth Mineralization at El Campo and Extends Dam Antimony Mineralization

- Link: https://www.thailand-business-news.com/pr-news/locksley-confirms-high-grade-rare-earth-mineralization-at-el-campo-and-extends-dam-antimony-mineralization
- Published: 2026-06-04T22:00:00+07:00
- Author: PR Newswire

SAN BERNARDINO, Calif., June 4, 2026 /PRNewswire/ — Locksley Resources Limited (
ASX: LKY, OTCQX: LKYRF) announced that assay reports from its maiden diamond drilling
program at the El Campo Rare Element (REE) prospect, within the company’s Mojave
Prospect in California, confirmed high-grade NdPr-enriched light rare earth mineralization.
The El Campo project is strategically located approximately 3.4 miles southeast 
of MP Materials’ Mountain Pass Mine, the only operating and producing rare earth
mine in the U.S.

Key highlights include:

 ◦ Neodymium (Nd) and Praseodymium (Pr) magnet rare earth oxides represent approximately
   25% of TREO in key drill intercepts, highlighting enrichment in the critical 
   rare earths elements required for permanent magnets, defense technologies, robotics
   and advanced manufacturing.
 ◦ Significant total REE oxide (TREO) intercepts returned from maiden drilling at
   El Campo include:
    • Peak value of 6.03% TREO over 0.7m in drill hole ECDD0002
    • 7.2m @ 2.93% TREO in drill hole ECDD0002, including 3.75m @4.45% TREO
    • 0.90m @ 1.09% TREO in drill hole ECDD0004

Details can be found here: [https://cdn-api.markitdigital.com/apiman-gateway/ASX/asx-research/1.0/file/2924-03097136-6A1328285&v=undefined](https://cdn-api.markitdigital.com/apiman-gateway/ASX/asx-research/1.0/file/2924-03097136-6A1328285&v=undefined).

In addition, final results from drilling at the company’s Dam Antimony Mine (DAM)
successfully intersected antimony mineralization beneath historical underground 
workings. Antimony intersections returned from the final two of eight completed 
drill holes including:

 ◦ Peak value of 6.44% Sb over 0.3m in DADD0007
 ◦ 0.3m @ 2.90% Sb in hole DADD0007.

The results at El Campo are significant given the strategic importance of Nd and
Pr rare earth oxides in permanent magnet supply chains, including electric vehicles,
robotics, unmanned systems, defense applications and advanced manufacturing.

"Diamond drilling at the El Campo prospect represents the first test of the depth
extensions of known REE mineralization exposed at surface," said Ian Stockton, Locksley
Resources non-executive technical director. "The results are encouraging and consistent
with observations from surface mapping and sampling. We are now evaluating the REE
opportunity in the context of our evolving understanding of the Mountain magmatic
system at El Campo."

With respect to the completion of the diamond drilling at DAM, he noted this represents
the first test of antimony mineralization beneath the historical workings. "The 
final assay results confirm previously announced drilling results that high-grade
antimony mineralization extends below the historic workings. In addition, these 
results also indicate that the mineralization extends to the south and remains open
along strike and at depth," said Stockton.

Locksley Resources ([https://www.locksleyresources.com.au](https://www.locksleyresources.com.au/))
is focused on critical minerals in the U.S. The company is actively advancing the
Mojave Project in California, targeting rare earth elements (REEs) and antimony.
Locksley is executing a mine-to-market strategy for antimony, aimed at reestablishing
domestic supply chains for critical materials, underpinned by strategic downstream
technology partnerships with leading U.S. research institutions and industry partners.
This targeted approach, combined with resource development with innovative processing
and separation technologies, positions Locksley to play a role in advancing U.S.
critical materials independence.

Contact: Locksley Resources Limited, Beverly Jedynak, [beverly.jedynak@viriathus.com](https://www.thailand-business-news.com/pr-news/beverly.jedynak@viriathus.com),
312-943-1123; 773-350-5793 (cell)

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**Read the original article :** [Locksley Confirms High-Grade Rare Earth Mineralization at El Campo and Extends Dam Antimony Mineralization ](http://www.prnasia.com/story/archive/4976175_CN76175_0?rand=184833)