File: '\\swfile\EmailIn\20260811 062515 Attachment Bonaparte August 11 2026 Press Release.docx'

Decade Resources Ltd. 426 King Street Stewart, BC

V0T 1W0

TSX.V Trading Symbol: DEC

Decade Commences Phase I Drilling at the Bonaparte Copper-Gold Property

Stewart, British Columbia -- (Newsfile Corp. - August 11 2026) -- Decade Resources Ltd. (TSXV: DEC) (OTC: DECXF) ("Decade" or the "Company") is pleased to announce that Phase I diamond drilling has commenced at its Bonaparte copper-gold property, located approximately 50 km north of Kamloops, B.C., within the Kamloops Mining Division. The property consists of 4 mineral tenures (claims) totaling 4,149.63 hectares.

The first hole of the program, DDH 1, is collared to test directly beneath the Discovery Zone for porphyry copper-gold potential at depth. The Discovery Zone, located in the northwest corner of the claims, hosts a series of parallel and sub-parallel gold-bearing quartz veins within a mylonitic shear zone approximately 250 to 300 m wide, where multi-ounce gold assays have been intersected in historic drilling, trenching, and underground workings. Geologists with the British Columbia Geological Survey have previously speculated that the Bonaparte deposit may represent the upper level of a buried porphyry system (Logan and Mihalynuk, 2013). DDH 1 is designed to test this interpretation, targeting the strong chargeability (IP) anomaly interpreted to begin at approximately 300 m depth and to extend beyond 500 m, as outlined in a historic NI 43-101 technical report that was done for previous operators. The Company has not confirmed these results by believes that they can be relied on. The Phase I program contemplates 6 holes totaling a minimum of 3,000 m of NQ-sized core, using a drill capable of reaching depths of at least 500 m.

The Bonaparte property hosts several target styles, including:

Copper-gold-molybdenum porphyry potential at depth beneath the IP anomalies

A bulk-tonnage reduced intrusion-related gold system (RIRGS) target supported by high-grade gold results in historic drilling, trenching, and underground exploration

A high-grade gold-copper low sulphidation epithermal vein system

Ed Kruchkowski, President of Decade Resources, stated: "The start of drilling at Bonaparte marks a major milestone for the Company and the culmination of the compilation, sampling, and exploration work completed over the past year. DDH 1 is the first hole designed to test directly beneath the high-grade gold veins of the Discovery Zone for the porphyry source that geologists of the British Columbia Geological Survey speculated may lie at depth. The vertical extent of the vein system, the alteration observed at surface, and the strong chargeability anomaly beginning at approximately 300 m depth all point to a possible intrusive source below the historic workings. Testing this target with the drill is the logical next step for the property, and one that historic operators never carried out. The Company looks forward to reporting results as the program advances, along with the pending soil geochemistry results from the July survey over the southern part of the anomaly."

Surface Program Update

In late July, a contract sampling crew completed a soil sampling survey over the southern portion of the indicated IP anomaly, collecting over 750 soil samples and 30 rock samples. All samples have been submitted to MSA Laboratories in Langley, B.C. Results remain pending and will be released once received, compiled, and reviewed.

Historical Work

Historic work on the property includes a 1994 bulk sample of 3,700 metric tons of mineralized vein material from the Nutcracker, Owl, Grey Jay and Crow vein systems, taken from surface trenching to a vertical depth of 12.2 m, which averaged 25.4 g/t Au and produced 3,160 ounces of gold. A separate bulk sample of 364 tons from the Crow vein averaged 16.3 g/t Au, yielding 161.95 ounces. Readers are cautioned that these results are historical in nature. A Qualified Person has not done sufficient work to verify the historical sampling results, and the Company is not treating the historical results as current. They are referenced solely as an indication of the exploration potential of the property.

Qualified Person

Ed Kruchkowski, P. Geo., President of Decade Resources Ltd., is a Qualified Person as defined by National Instrument 43-101 and has reviewed and approved the technical contents of this news release.

About Decade Resources Ltd.

Decade Resources Ltd. is a Canadian based mineral exploration company actively seeking opportunities in the resource sector. Decade holds numerous properties at various stages of development and exploration, from grassroots to advanced. Its properties and projects are mostly located in the "Golden Triangle" area of northern British Columbia. For a complete listing of the Company's assets and developments, visit the Company website at www.decaderesources.ca.

For a complete listing of the Company assets and developments, visit the Company website at www.decaderesources.ca. For investor information please call the Company at 250- 636-2264 or Gary Assaly at 604-377-7969.

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.

Forward-Looking Statements

This release includes certain statements and information that may constitute forward-looking information within the meaning of applicable Canadian securities laws. All statements in this news release, other than statements of historical facts, including statements regarding future estimates, plans, objectives, timing, assumptions or expectations of future performance, including without limitation, that the Company will receive regulatory approval of the Option, the exercise of the Option, exploration plans for the Property and the use of funds for the recently completed private placement are forward-looking statements and contain forward-looking information. Generally, forward-looking statements and information can be identified by the use of forward-looking terminology such as "intends" or "anticipates", or variations of such words and phrases or statements that certain actions, events or results "may", "could", "should" or "would" or occur.

Forward-looking statements are based on certain material assumptions and analysis made by the Company and the opinions and estimates of management as of the date of this press release, including that Company will be able to receive regulatory approval for the Option, that the Company will be able or willing to make the Option Payments in order to exercise the Option, that the Company will have the necessary funds and resources to conduct its exploration plans on the Property and that the Company will use the proceeds from the private placement as anticipated.

These forward-looking statements are subject to known and unknown risks, uncertainties and other factors that may cause the actual results, level of activity, performance or achievements of the Company to be materially different from those expressed or implied by such forward-looking statements or forward-looking information. Important risks that may cause actual results to vary, include, without limitation, the risk that the Company is unable to receive regulatory approval for the Option Agreement; that the Company may be unable or unwilling to make all Option Payments and exercise the Option; that the Company may be unable to conduct its exploration plans on the Property as anticipated, or at all; and that the Company may not use the proceeds from the private placement as anticipated.

Although management of the Company has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking statements or forward-looking information, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements and forward-looking information. Readers are cautioned that reliance on such information may not be appropriate for other purposes. The Company does not undertake to update any forward-looking statement, forward-looking information or financial outlook that are incorporated by reference herein, except in accordance with applicable securities laws.

References

Logan, J.M., and Mihalynuk, M.G., 2013. Bonaparte gold: another 195 Ma Au-Cu porphyry deposit in southern British Columbia? In: Geological Fieldwork 2012, British Columbia Ministry of Energy, Mines and Natural Gas. British Columbia Geological Survey Paper 2013-1, 71-80.

Minfile BC

NI 43-101 Technical Report on the Bonaparte Gold Project by R. Kemp, P.Geo.

**Reduced intrusion-related gold systems (RIRGS) are characterized by widespread arrays of sheeted auriferous quartz veins that preferentially form in the brittle carapace at the top of small plutons, where they form bulk-tonnage, low-grade Au deposits characterized by a Au-Bi-Te-W metal assemblage, such as the Fort Knox and Dublin Gulch deposits. https://www.researchgate.net/publication/277131625_Reduced_Intrusion-related_Gold_Systems