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Delta Extends I-Zone GOLD Mineralization BY More Than 400 Metres, Thunder BAY, Ontario

Drill Results

DELTA EXTENDS I-ZONE GOLD MINERALIZATION BY MORE THAN 400 METRES,

THUNDER BAY, ONTARIO

September 21, 2026 / Toronto, ON / Newsfile Corp. Delta Resources Limited (“Delta” or “the

Company”) (TSX-V: DLTA) (OTCQB: DTARF) (FRANKFURT: 6GO1) is pleased to report initial

channel-sampling results that extend known gold mineralization at the I-Zone by more than 400

metres eastward at its Delta-1 Gold Project, approximately 50 kilometres west of Thunder Bay,

Ontario. Results include 4.85 g/t Au over 8.0 metres in trench D1-26-TR17 and 2.91 g/t Au

over 8.3 metres and 4.23 g/t Au over 4.3 metres in trench D1-26-TR20 (Table 1).

The I-Zone remains open along strike in both directions and is largely untested at depth.

Table 1. Reported Channel Results

Survey Azimuth Length UTM NAD83

Zone 16 - East

UTM NAD83

Zone 16 - North Reported Interval

D1-26-TR17-01 265 11.9 272182 5383001 4.85 g/t Au over 8.0 m

D1-26-TR20-07 74 8.3 272435 5383008 2.91 g/t Au over 8.3 m

D1-26-TR20-08 80 4.3 272445 5383010 4.23 g/t Au over 4.3 m

Preliminary outcrop sampling across the area has also returned gold values such as 2.49 g/t

Au, 6.06 g/t Au and 16.1 g/t Au (Figure 1). Laboratory turnaround times are currently several

weeks longer than usual due to a notable increase in exploration activity across Canada.

Assays remain pending for hundreds of additional channel and grab samples collected as part

of Delta’s ongoing exploration program.

Additional results will be released as they become available.

Ron Kopas, Chief Executive Officer (CEO) of Delta, commented:

“Our summer exploration program has demonstrated significant eastward continuity over 400

metres that had not previously been established. Our first phase of drilling in the I-Zone Sector

will now test the mineralized system along strike and at depth, where we see strong potential for

high-grade mineralization.

Our thesis at the Delta-1 Property continues to strengthen as we are only beginning to

understand the scale and potential of this system. As we apply a more systematic exploration

approach, we believe we will continue to identify highly prospective targets anchored by the

Eureka discovery.”

Note: Gold mineralization at I-Zone is primarily associated with approximately N–S-trending extensional quartz veins

hosted within approximately E–W-trending felsic dikes. Channel samples were oriented to intersect the mineralized

veins and, therefore, do not represent the true width of the host dikes. Observed true widths of the felsic dikes at

surface are variable and range from less than one metre to approximately four metres. Grab samples are selective by

nature and may not be representative of the mineralization on the property.

Figure 1. I-Zone Sector – Exploration Results

I-Zone and Crayfish Creek Fault Corridor

The I-Zone is a historically recognized gold occurrence where previous drilling returned several

significant gold intercepts, including 4.32 g/t Au over 41.0 metres, 4.53 g/t Au over 14.4 metres,

and 4.36 g/t Au over 20.4 metres.

The I-Zone forms part of the broader Crayfish Creek Fault corridor, an underexplored area

along a major regional structure where historical exploration by Inco identified more than two

dozen high-grade mineral occurrences, many of which have seen little or no systematic follow-

up exploration. Delta’s current regional program is systematically evaluating these targets using

modern exploration methods, with the objective of identifying and advancing additional gold

targets for drilling.

Note: Historical results referenced herein are not NI 43-101 compliant.

Qualified Person

Daniel Boudreau, P.Geo., Vice President 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 news release.

Quality Assurance / Quality Control

Channel samples were analyzed under Delta Resources’ Quality Assurance and Quality Control

(QA/QC) program, which includes the systematic insertion of certified reference materials and

blanks. Samples containing visible gold, as well as samples returning greater than 2.0 g/t Au on

an initial 50 g fire assay, were analyzed using a metallic screening procedure consisting of a 1

kg pulverized sample screened to 106 µm, followed by 50 g fire assay with gravimetric finish.

QA/QC results are reviewed by the Qualified Person to ensure analytical results meet

acceptable quality-control thresholds.

About Delta Resources Limited

Delta Resources is a Canadian mineral exploration and development company focused on

advancing its Delta-1 Gold Project in Ontario. The Company has identified a large, near-surface

gold system located approximately 50 kilometres west of Thunder Bay, adjacent to the Trans-

Canada Highway. The Delta-1 Property covers approximately 340 square kilometres and hosts

multiple gold-bearing corridors, including the Eureka Gold Deposit and the highly prospective I-

Zone–Crayfish Creek Fault trend.

The Eureka Gold Deposit extends over 2.5 kilometres in strike length and to depths exceeding

300 metres, with mineralization intersected to approximately 600 metres vertical depth and

remaining open in all directions. Highlights include drill intercepts such as 5.92 g/t Au over 31 m

(including 14.8 g/t Au over 11.9 m) and 1.79 g/t Au over 128.5 m.

Safe Harbour Statement: Neither the TSX Venture Exchange nor its Regulation Services

Provider accepts responsibility for the adequacy or accuracy of this release. The TSX Venture

Exchange has neither approved nor disapproved the information contained herein.

For Further Information:

Frank Candido, Chairman

Tel: 514-969-5530

[email protected]

Ron Kopas, CEO

[email protected]

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.