Delta Resources Completes Upsized 5,237-Metre Fall Drilling Program at the Delta-1 Gold Property and Announces Completion of High-Resolution Drone Mag Survey, Thunder Bay, Ontario

Rhea-AI Summary

Delta Resources (OTC: DTARF) completed its 2025 fall drill program at the Delta-1 property, totaling 26 diamond holes and 5,237 metres, exceeding planned meterage and holes.

The final two holes targeted the Wedge sector, 5 kilometres west of the Eureka gold deposit and previously undrilled by Delta. Drilling followed 2025 surface mapping, sampling and IP surveys. Delta also completed a high-resolution drone magnetic survey to refine targets ahead of follow-up drilling in the Shabaqua area and Wedge sector. Assay dispatch experienced brief delays; assay results will be reported after QA/QC.

Positive

• Completed 5,237 metres across 26 diamond holes
• First Delta drilling in the Wedge sector (5 km west of Eureka)
• Finished high-resolution drone magnetic survey to refine targets

Negative

• Sample dispatch experienced brief delays
• Assay results are pending and not yet reported

Toronto, Ontario--(Newsfile Corp. - December 4, 2025) - Delta Resources Limited (TSXV: DLTA) (OTC Pink: DTARF) (FSE: 6GO1) ("Delta" or "the Company") is pleased to announce that its 2025 fall drilling program at the Delta-1 Property, located 50 kilometres west of Thunder Bay, Ontario, has been successfully completed. The program consisted of twenty-six (26) diamond drill holes totaling 5,237 metres, exceeding both the originally planned meterage and the number of holes. In addition to the previously announced target sectors, the final two holes of the campaign were completed in the Wedge sector, a priority target area 5 kilometres west of the Eureka Gold Deposit that had not previously been drilled by Delta Resources.

The fall drill program was designed to continue advancing the Company's understanding of the structural controls and extensions of mineralization surrounding the Eureka Gold Deposit, while testing additional satellite zones to support potential future expansion. Drilling focused on high-priority targets identified through 2025 surface mapping, sampling, and Induced Polarization (IP) geophysical surveys.

Map of Fall-2025 Drill Hole Locations

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/8482/276893_411349f9b4711ada_001full.jpg

Delta has also just completed a high-resolution drone magnetic survey to expand previous coverage and support ongoing exploration efforts. The new data will help refine targets in anticipation of follow-up drilling in both the Shabaqua target area and the Wedge sector.

Map of High-Definition Drone Mag Survey Areas

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/8482/276893_411349f9b4711ada_002full.jpg

Ron Kopas, Interim Chief Executive Officer of Delta, commented:

"The drill campaign proceeded very efficiently and as a result, we were able to add a substantial amount of drilling beyond what was initially planned. The expanded program allowed us to test new target areas, including the Wedge sector, while continuing to evaluate extensions to the Eureka Gold system. Due to the unexpectedly rapid pace of operations and minor core-cutting issues at the outset of the program, the dispatch of samples to the laboratory experienced brief delays; nevertheless, we expect to receive and report assays from this latest round of drilling shortly."

Assay results will be reported as soon as they are received, compiled, and have successfully passed QA/QC review.

On Behalf of the Board of Delta Resources Limited

Qualified Person

Daniel Boudreau, P.Geo., Manager of Exploration at Delta Resources Limited, is the Qualified Person as defined by National Instrument 43-101 and has reviewed and approved the technical information contained in this press release.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

About Delta Resources Limited

Delta Resources is a Canadian mineral exploration and project development company focused on its Delta-1 project in Ontario, where it has discovered a large, near-surface gold deposit located 50 kilometres west of Thunder Bay, directly adjacent to the Trans-Canada Highway. The Eureka Gold Deposit extends 2.5 km in strike length, from surface to over 300 metres in depth. Highlights include drill intercepts such as 5.92 g/t Au over 31 metres (including 14.8 g/t Au over 11.9 metres), and 1.79 g/t Au over 128.5 metres. Mineralization has been observed up to 600 metres vertical depth and remains open in all directions. The property covers 297 square kilometres containing multiple corridors of intense alteration and deformation on strike with, and to the south of, the Eureka Gold Zone, many of which remain under-explored.

We seek safe harbour. Neither TSX Venture Exchange nor its Regulation Services Provider accepts responsibility for the adequacy or accuracy of this release. The TSX Venture Exchange has not approved nor disapproved the information contained herein.

For Further Information:

Frank Candido, Chairman
Tel: 514-969-5530
fcandido@deltaresources.ca

Ron Kopas, CEO (Interim)
rkopas@deltaresources.ca

Cautionary Note Regarding Forward-Looking Information

Some statements contained in this news release are "forward-looking information" within the meaning of Canadian securities laws. Generally, forward-looking information can be identified by the use of forward-looking terminology such as "plans", "expects", "is expected", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates", "believes" or variations of such words and phrases (including negative or grammatical variations) or statements that certain actions, events or results "may", "could", "would", "might" or "will be taken", "occur" or "be achieved" or the negative connotation thereof. Investors are cautioned that forward-looking information is inherently uncertain and involves risks, assumptions and uncertainties that could cause actual facts to differ materially. There can be no assurance that future developments affecting the Company will be those anticipated by management. The forward-looking information contained in this press release constitutes management's current estimates, as of the date of this press release, with respect to the matters covered thereby. We expect that these estimates will change as new information is received. While we may elect to update these estimates at any time, we do not undertake to update any estimate at any particular time or in response to any event.

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/276893

FAQ

What did Delta Resources (DTARF) complete on December 4, 2025 at Delta-1?

Delta completed its fall 2025 drill program: 26 holes totaling 5,237 metres, and a high-resolution drone magnetic survey.

Why is drilling in the Wedge sector important for DTARF investors?

The Wedge sector is a priority target 5 km west of the Eureka deposit and had not been previously drilled by Delta.

When will DTARF report assay results from the fall 2025 drilling?

Assay results will be reported shortly after samples are received, compiled, and pass QA/QC review.

How will the drone magnetic survey affect DTARF's exploration plans?

The high-resolution drone mag data will refine drill targets ahead of follow-up programs in Shabaqua and the Wedge sector.

Did the Delta-1 program exceed its original plan and by how much?

Yes; the program exceeded the originally planned meterage and number of holes, finishing at 5,237 metres across 26 holes.