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Prosper Mobilizes Crews for Additional Drilling at Cyprus

Exploration Programs

May 28th, 2025 TSXV: PGX

OTCQB: PGXFF

NEWS RELEASE

Prosper Mobilizes Crews for Additional Drilling at Cyprus

Vancouver, British Columbia – May 28th, 2025 – Prosper Gold Corp. (" Prosper Gold" or the " Company")

(TSXV:PGX) announces that field crews have been mobilized and preparations are being made to facilitate

upcoming diamond drilling activities at the Cyprus Project . Drilling will follow up on results of the ground-

based Induced Polarization (“IP”) survey completed at Target A in March, 2025.

“Our first three holes drilled at this newly identified target confirmed the presence of porphyritic intrusions

and quartz-sericite-pyrite alteration,” commented Peter Bernier, CEO. “Results from the March 2025 ground

IP survey have revealed a 2,600 by 800 metre area of higher chargeability roughly 1 kilometre to the southwest.

We will be testing this highly chargeable portion of the system in this next round of drilling.”

Initial drilling tested a 2 x 3 kilometre coincident magnetic low / conductivity high anomaly outlined in the

Company’s summer 2024 ZTEM (z-axis tipper electromagnetic) airborne survey (Figure 1). Three drill holes

totaling 1,602 metres intersected variable amounts of quartz -sericite-pyrite (phyllic) alteration ( Figure 3 )

spatially associated with porphyritic intrusions (Figure 4). The presence of hydrothermal breccias, fracture-fill

and disseminated pyrite mineralization and sericitic alteration suggest the drill holes intersected the periphery

of a hydrothermal magmatic system that has the potential to host a porphyry copper deposit.

Following the maiden drill program, a deep -penetrating IP survey was designed to outline the distribution of

disseminated sulphides within the hydrothermal system. IP results, along with alteration, lithology and pyrite

mineralization observed in drill core, suggest the northeastern margin of the system was drilled . The survey

results suggest the majority of disseminated sulphides occur 1.2 kilometres to the southwest of the nearest drill

hole (DD25CYP002, Figure 2).

The upcoming diamond drilling program, scheduled to commence in early June, will t est a pronounced IP

chargeability high that coincides with a resistivity high in the immediate hanging wall of a regional northwest

trending fault. The geophysical interpretation of the IP results suggests the potential for a body of sulphides

associated with intrusive rock and/or potassic alteration potentially associated with the high temperature

portion of a porphyry system.

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Figure 1 – Porphyry copper ± gold targets outlined by the summer 2024 ZTEM survey. Total Magnetic Intensity (top)

and 30Hz in-phase Total Phase Rotated (bottom) showing relative conductivity at depth.

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Figure 2 – Maps showing three drill holes completed in February/March of 2025 and two proposed holes targeting

chargeability highs outlined in an IP survey completed subsequent to initial drilling. IP depth slices at -300 m.

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Figure 3 - Examples of quartz-sericite-pyrite alteration and mineralization encountered in February/March 2025 drilling.. A) Quartz-

sericite-pyrite altered andesitic volcanics. Pyrite as disseminations and blebs (DD25CYP001 – 213.3 m). B) Abundant fine

disseminated pyrite within strongly quartz-sericite altered andesites (DD25CYP001 – 229.9 m). C) Abundant disseminated to semi -

massive pyrite within stron gly quartz-sericite altered andesites (DD25CYP001 – 373.3 m). D) Abundant fine disseminated pyrite

replacing groundmass and at silica replacement sites (DD25CYP001 – 229.5 m). E) Blebby pyrite within silica-sericite altered andesite

(DD25CYP003 - 243.2 m). F) Pyrite stringers in silica-sericite altered feldspar porphyry andesite (DD25CYP002 – 362 m).

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Figure 4 - Examples of intrusions from February/March 2025 drilling. A) Intrusive breccia with strongly silica-sericite-pyrite altered

clasts intruded by biotite -feldspar porphyry (DD25CYP003 – 453.3 m). B) Monzonitic intrusive rocks with sooty pyrite veining

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(DD25CYP002 – 281 to 292 m). C) Biotite-felspar porphyry dikelet with strongly silica-sericite-pyrite altered wallrock (DD25CYP003

– 453.5 m).

Table 1 - Drill hole information from February/March 2025 maiden drilling program (coordinates provided in UTM NAD 83, zone 9).

Hole ID Easting (m) Northing (m) Azimuth (°) Dip (°) Length (m)

DD25CYP001 664,461 6,197,242 215 -60 500

DD25CYP002 664,061 6,197,533 215 -60 500

DD25CYP003 664,607 6,197,438 215 -70 602

About the Cyprus Project

The road-accessible Cyprus Project is situated in north -central British Columbia, Canada. The 623 square

kilometre Project includes the historical Kaza and Northstar copper prospects (see the Company’s February

20th, 2024 and February 26 th, 2024 news releases for details) and represents a district -scale copper -gold

porphyry exploration Project.

At the historical Kaza copper -gold prospect, soil samples up to 5.09 gpt gold and 10,000 ppm copper and

surface rock chip samples from 1973 including 0.88% copper, 15.4 gpt gold and 120 gpt silver over 4.0 metres

coincide with a 2,000 by 600 metre area of high IP chargeability and low magnetic response. The presence of

sparse feldspar porphyry dikes and the sulphide assemblages present at surface suggest copper-gold porphyry

mineralization may improve at depth.

Copper mineralization at the Northstar prospect consists of vein-hosted and disseminated chalcocite and bornite

within faulted and fractured andesite. Surface trench sampling results includes 23.0 metres grading 2.1%

copper and historical drilling intercep ts include 0.55% copper over 138.2 metres. Zones of copper

mineralization outlined by previous operators at the Northstar prospect are likely driven by a magmatic -

hydrothermal system in the immediate vicinity.

The Big-Time prospect has not seen historical drilling despite the presence of a pronounced copper -bearing

area of phyllic alteration that coincides with strong copper -molybdenum geochemistry, high IP chargeability

and northeast trending feldspar porphyry dikes.

A heli-borne ZTEM (z-axis tipper electromagnetic) geophysical survey comprising 3,760 line-kilometres was

completed over the entirety of the Cyprus Project in the summer of 2024. Numerous porphyry copper ± gold

exploration targets were outlined, including Target A, which is characterized as a 2 x 4 kilometre conductivity

high anomaly coincident with a 2 x 3 kilometre magnetic low anomaly proximal to a regionally mapped NW-

trending fault. Initial drilling at Target A indicates the presence of a magmatic-hydrothermal system related to

porphyritic intrusions.

Qualified Person

The scientific and technical information in this news release has been reviewed by Rory Ritchie, P.Geo., Vice-

President of Exploration for Prosper Gold and a Qualified Person under National Instrument 43-101.

For an overview of Prosper Gold please visit www.ProsperGoldCorp.com

ON BEHALF OF THE BOARD OF DIRECTORS

Per: “Peter Bernier”

Peter Bernier

President & CEO

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For further information, please contact:

Peter Bernier

President & CEO

Prosper Gold Corp.

Cell: (250) 316-6644

Email: [email protected]

Information set forth in this news release may involve forward-looking statements under applicable securities laws.

Forward-looking statements are statements that relate to future, not past, events. In this context, forward -looking

statements often address expected future business and financial performance, and often contain words such as

"anticipate", "believe", "plan", "estimate", "expect", and "intend", statements that an action or event "may",

"might", "could", "should", or "will" be taken or occur, or other similar expressions. All statements, other than

statements of historical fact, included herein including, without limitation, statements about the planned exploration

of the Cyprus Project, are forward-looking statements. By their nature, forward-looking statements involve known

and unknown risks, uncertainties and other factors which may cause our actual results, performance or

achievements, or other future events, to be materially different from any future results, performance or achievements

expressed or implied by such forward-looking statements. Such factors include, among others, the following risks:

the need for additional financing; operational risks associated with mineral exploration; fluctuations in commodity

prices; title matters; environme ntal liability claims and insurance; reliance on key personnel; the potential for

conflicts of interest among certain officers, directors or promoters with certain other projects; the absence of

dividends; competition; dilution; the volatility of our commo n share price and volume and the additional risks

identified the management discussion and analysis section of our interim and most recent annual financial statement

or other reports and filings with the TSX Venture Exchange and applicable Canadian securit ies regulations.

Forward-looking statements are made based on management's beliefs, estimates and opinions on the date that

statements are made and the Company undertakes no obligation to update forward -looking statements if these

beliefs, estimates and opinions or other circumstances should change, except as required by applicable securities

laws. Investors are cautioned against attributing undue certainty to forward-looking statements.

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.