Highlights

• Jaguar Uranium Corp. (NYSE American: JAGU) resampled retained 2010-2012 drill core at its Berlin Project in Caldas, Colombia, and reported rare earth elements alongside uranium, vanadium and phosphate.
• The best selected interval returned 3,570 ppm TREO (0.357%) and 607 ppm MREO over 0.63 meters of core in hole DDB-041.

The intervals were hand-picked, true widths are unknown, and the data are exploration results only, not a mineral resource.Jaguar Uranium Corp. (NYSE American: JAGU) has pulled old drill core out of storage at its Berlin Project in Colombia and tested it for rare earth elements. The company reported the results on September 24, 2026, in a release distributed via PRNewswire.

The core isn’t new. A previous operator, U3O8 Corp., drilled it between 2010 and 2012, and it has sat in a locked core shed on the property since 2015.

Berlin, in Colombia’s Department of Caldas, is mainly a uranium story. Rare earths had been reported there historically. This program adds fresh lab data on how those elements line up with the uranium, vanadium and phosphate in the same rock.

What Came Back

Four intervals lead the release:

• DDB-041: 0.63 m at 3,570 ppm TREO and 607 ppm MREO
• DDB-068: 0.50 m at 2,532 ppm TREO and 414 ppm MREO
• DDB-003: 1.53 m at 2,267 ppm TREO and 329 ppm MREO
• DDB-015: 1.00 m at 2,176 ppm TREO and 349 ppm MREO

TREO, or total rare earth oxides, adds up the 15 rare earths the lab reported after converting each to its oxide form. MREO is the magnet subset: neodymium, praseodymium, terbium and dysprosium. Those four end up in the permanent magnets inside EV motors, wind turbines and defense hardware. The math is simple. 10,000 ppm equals 1%, so the top interval works out to roughly a third of a percent TREO.

Grade is only part of it. Rare earth projects often succeed or fail on mineralogy and processing, and Jaguar says metallurgical recovery hasn’t been established. At Berlin, any rare earth value would sit in the same horizon as uranium, vanadium and phosphate.

The Limits, in the Company’s Own Words

Jaguar picked the intervals itself from the core that remained. It sampled both flanks and the hinge of a syncline (a U-shaped fold in the rock layers), plus positions above and below the mineralized horizon. The company says this was not a systematic resample and the results aren’t necessarily representative of the horizon as a whole.

More gaps. Reported lengths are core lengths; true widths haven’t been determined. A material share of the intervals came from two holes, DDB-035 and DDB-077, sampled only to check historical geochemistry. And the program wasn’t designed to verify any historical estimate.

Jaguar classifies the data as exploration results under Regulation S-K 1300, the SEC’s mining disclosure rule for U.S.-listed companies. They don’t represent a mineral resource or reserve, and economic viability hasn’t been established.

SGS handled the lab work, with sample prep in Medellín and analysis in Callao, Peru. The 150-sample batch included 14 blanks and certified reference materials as quality checks.

Who Signed Off

The Qualified Person is Andrés Cáceres, an AIPG Certified Professional Geologist whom Jaguar describes as an independent contractor. Cáceres also designed the resampling program and interpreted the results.

His ties to Berlin go back years: he was project manager for U3O8 Corp. from 2007 to 2015, the stretch when this core was drilled. So he knows the material. He’s also reviewing core from campaigns he oversaw. Jaguar says his verification was limited to the available core and pulps, storage and chain-of-custody records, lab certificates and QA/QC results.

The Policy Backdrop

Jaguar links Berlin to the Barranquilla Accords, U.S.-Colombia agreements signed on September 8, 2026. According to the U.S. State Department, the critical minerals framework commits both governments to mobilize support such as loans, equity and offtake deals to identify and finance mining and processing projects within six months. A second arrangement covers civil nuclear cooperation.

China dominates rare earth refining and magnet manufacturing, and Washington has been signing supply agreements across the hemisphere in response. The release doesn’t say Berlin has been selected for support under the Colombian framework. The view that the project is well positioned is Jaguar’s own.

What’s Next

Jaguar plans trenching, geophysics and new drilling to refine its geological model and test continuity. CEO Steven Gold said the multi-commodity profile fits with growing U.S.-Colombia cooperation on critical minerals and nuclear energy. Getting rare earths into any future resource estimate would take more drilling, continuity work and technical studies. No timeline was given.

Sources

• Jaguar Uranium Corp.: Jaguar Uranium Reports Rare Earth Oxides Associated with Uranium-Phosphate-Vanadium Mineralization at the Berlin Asset in Colombia, PRNewswire, September 24, 2026
• U.S. Department of State: Secretary Rubio and Colombian Foreign Minister Bula Sign Arrangements on Critical Minerals and Civil Nuclear Cooperation, September 2026

Editorial Disclosure

This article is based on a corporate press release issued by Jaguar Uranium Corp. on September 24, 2026, and distributed via PRNewswire. Securities discussed: Jaguar Uranium Corp. (NYSE American: JAGU). Mining Markets Report has not received compensation from Jaguar Uranium, its management, investor relations representatives, or any third party for the creation of this specific coverage. No staff member, principal, or affiliate of Mining Markets Report holds a position, option, or interest in this security as of the publication date. The rare earth results described are exploration results from selected intervals of historical drill core; they do not constitute a mineral resource or mineral reserve, and their economic viability and metallurgical recovery have not been established. Statements regarding planned trenching, geophysics, drilling, geological modeling, and potential future mineral resource work are forward-looking statements. They are subject to operational risks, geological uncertainties, financing, and regulatory approvals; actual outcomes and timing may differ materially. References to U.S.-Colombia government agreements are provided as factual context only; Mining Markets Report offers no opinion on government policy. Mineral exploration stocks carry an extremely high degree of financial risk. Early-stage exploration companies often have no revenues, are speculative in nature, and can result in the total loss of invested capital. This overview is published strictly for informational, news-reporting, and educational market context purposes only. It does not constitute an investment recommendation, endorsement, or professional financial, legal, or tax advice.

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