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8.4 meters at 50 g/t AuEq Drilled at Great Pacific Gold’s Wild Dog Project

Drill Results

TSX-V: GPAC OTCQX: FSXLF GER: V3H

www.gpacgold.com | 1

8.4 meters at 50 g/t AuEq Drilled at Great Pacific Gold’s Wild Dog Project

September 2, 2025 – Vancouver, BC, Canada – Great Pacific Gold Corp. ("Great Pacific Gold," "GPAC," or

the "Company") (TSXV: GPAC | OTCQX: FSXLF | Germany: V3H) announces results from its recently

expanded Phase 1 diamond drill program at its flagship Wild Dog Project (“Wild Dog” or the “Project”),

located on the island of New Britain, East New Britain Province, Papua New Guinea ("PNG").

Key Highlights:

• Hole WDG-08 intercepted:

o 8.4 m @ 49.9 g/t AuEq from 154m (46.5 g/t Au, 1.7% Cu, 66.3 g/t Ag),

o Including: 3.8m @ 105 g/t AuEq from 154m (93.3 g/t Au, 6.6% Cu, 142 g/t Ag).

• Sinivit target yielding high-grade, near surface results: nine of twenty-eight holes completed for

1,214 of 5,000 meters. WDG-10 underway stepping out 100 meters to the north of WDG-09.

• Next Catalyst: Assay results pending for WDG-09, approximately 60m north of WDG-08.

• Re-assay results for hole WDG-04 show increased copper results (Table 2).

“Hole WDG-08 has delivered one of the best exploration hits in PNG in recent years, 8.4 metres at nearly

50 grams gold equivalent, including a bonanza zone grading over 300 g/t Au” stated Callum Spink, Vice

President Exploration. “These results highlight the exceptional tenor of this epithermal system. The

combination of multi -ounce gold with significant copper and silver credits confirms the presence of a

robust polymetallic vein structure. Importantly, the semi-massive sulphide textures and associated copper

mineralization in this interval demonstrate that we are drilling directly into the heart of the system. With

mineralization open along strike and at depth, we see clear potential for continuity of these high- grade

zones and for scale across the broader 15 km structural corridor.

“The Sinivit target continues to generate high- grade near-surface mineralized intercepts ,” stated Greg

McCunn, CEO. “With the drilling program at Sinivit expanded to 5,000 meters, we are looking forward to

continued drilling success for the balance of 2025 from Phase 1. M ineralization is open at depth, and

North-South along strike over the 15 km corridor. With both high- grade and district-scale, the Wild Dog

epithermal target has the potential to host a major gold-copper deposit. In parallel to our cont inued

drilling, we are starting to increase our field activity on the adjacent Magiabe porphyry in preparation for

a potential maiden drilling program in 2026.”

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Figure 1: Long section through the Sinivit target area showing drilling completed to-date with key intervals

as well as proposed holes in the expanded program.

Photo 1: WDG-08 at 155.5m - drill core with semi-massive sulphides with visible chalcopyrite and bornite

grading 55 g/t Au and 7.9% Cu.

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Photo 2: WDG-08 at 155.7m - drill core with semi-massive sulphides with visible chalcopyrite and bornite

grading 55 g/t Au and 7.9% Cu.

Wild Dog Phase 1 Diamond Drill Program

The Phase 1 program commenced in May 2025 and is designed to test the Sinivit target, a 1.5 km strike

length within the 15 km Wild Dog epithermal vein structural corridor (Figure 1). The high-grade nature of

the system has already been confirmed by multiple strong intercepts. In addition, recent processing of

MobileMT geophysical data has highlighted the exceptional scale of the epithermal system and the

potential for a major porphyry copper -gold system adjacent to the veins — a setting analogous to the

Wafi-Golpu deposit in PNG (mineralization at Wafi-Golpu is not necessarily indicative of mineralization at

Wild Dog).

The expanded program now totals 28 diamond drill holes and is expected to continue into early 2026.

Drilling to date has only tested a small portion of the mineralized corridor, which remains open to the

north, south, and at depth.

Since commencing in May 2025, GPAC has completed nine drill holes at Sinivit, with the tenth hole

underway. WDG-08 and WDG-09 have been completed, and assays are pending for WDG-09. Details of

the drilling are shown in Table 1 with key assay results received to-date are shown in Table 2.

Results

Table 1: Wild Dog Drill Hole Details (PNG94 UTM coordinates).

Hole ID Easting Northing RL Dip Azi Max

Depth

(m)

Status

WDG-01 394358.3 9488853.5 945 -50 115 40.1 Abandoned

WDG-02 394426.0 9489024.2 900 -53 050 124.6 Completed

WDG-03 394384.9 9488926.5 924 -50 053 127.6 Completed

WDG-04 394384.8 9488926.5 924 -50 75 120.6 Completed

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WDG-05 394384.8 9488926.5 924 -50 116 105.9 Completed

WDG-06 394428.6 9488923.1 911 -50 352 69.0 Completed

WDG-07 394457.5 9489375 993 -61 114 201.3 Completed

WDG-08 394455.5 9489373.0 993 -57 127 224 Completed

WDG-09 394459.5 9489374.0 993 -58 85 203 Completed

WDG-10 394475.1 9489484 965 -57 111 TBD In Progress

Table 2: Wild Dog Drill Hole Key Assay Results (WDG-02 to WDG-07 results previously announced).

Hole ID From

(m)

To

(m)

Interval1

(m)

Gold

(g/t)

Silver

(g/t)

Copper

(%)

Gold Eq.2

(g/t)

WDG-02 65.0 72.0 7.0 5.5 68.8 3.1 11.2

including 65.0 67.0 2.0 10.7 114.6 2.2 15.6

WDG-03 102.0 104.3 2.3 1.68 6.5 0.12 1.94

including 103.55 104.3 0.75 4.05 7.6 0.15 4.45

WDG-04 62.0 68.0 6.0 8.31 27.6 2.37 12.35

including 64.0 68.0 4.0 12.25 36.7 1.71 15.53

including 64.0 66.4 2.4 19.76 19.8 2.59 24.48

WDG-05 72.0 77.0 5.0 1.3 11.7 0.25 1.71

including 72.0 75.0 3.0 1.97 0.31 2.8

WDG-06 12.0 15.5 3.5 5.1 47.2 4.87 13.3

including

13.7 14.3 0.6 8.1 78 10.84 26.0

WDG-07 153.0 163.0 10.0 3.4 12.1 0.31 4.0

including

153 158.1 5.1 5.6 14.8 0.53 6.5

WDG-07 172.0 173.2 1.2 7.3 105.1 1.28 10.5

including

172.5 173.2 0.7 12.0 178.0 2.18 17.5

WDG-08 154 162.4 8.4 46.5 66.3 1.7 49.9

including 154 157.8 3.8 93.3 142 6.59 105

including 157 157.8 0.8 322 94 3.91 329

WDG-08 180 188 8 1.95 6.25 0.14 2.2

including 180 184 4 3.3 5.8 0.17 3.7

Notes:

1. Drill highlights presented above are core lengths (true widths are not known at this time).

2. Gold equivalent (AuEq) exploration results are calculated using longer- term commodity prices

with a copper price of US$4.50/lb, a silver price of US$27.50/oz and a gold price of US$2,000/oz.

No metallurgical testing has been carried out on Wild Dog mineralized samples. For AuEq

calculations, recovery assumptions of Au 92.6%, Ag 78.0%, and Cu 94.0% were used based on K92

Mining’s stated recovery results in an Updated Definitive Feasibility Study for the Kainantu mine.

www.gpacgold.com | 5

On behalf of Great Pacific Gold

Greg McCunn, Chief Executive Officer and Director

For further information visit gpacgold.com or contact:

Email: [email protected]

Tel: +1 778 262 2331

Qualified Person

The technical content of this news release has been reviewed, verified and approved by Callum Spink, the

Company’s Vice President, Exploration, who is a member of the Australian Institute of Geoscientists,

MAIG, and a Qualified Person as defined by National Instrument NI 43 -101 Standards of Disclosure for

Mineral Projects. Mr. Spink is responsible for the technical content of this news release. Mr. Spink is not

independent of the Company.

Quality Assurance / Quality Control (QAQC)

The Company adheres to industry best practices for Quality Assurance and Quality Control. Drill core

samples were submitted to Intertek Minerals Ltd. in Lae, Papua New Guinea, an ISO 9001 -certified

laboratory. Samples were securely sealed in poly -weave bags with single-use tie-locks to maintain chain

of custody. Analytical testing was completed using fire assay with additional multi-element MS48 analysis

underway.

Diamond drill hole WDG-0 2 was drilled using a combination of HQ and PQ diameter core , while the

remainder of the holes were drilled with PQ. Certified reference materials (standards) and blanks were

inserted into the sample stream in accordance with industry -standard protocols. Blanks were routinely

inserted after high-grade intervals, and certified standards were included at a frequency of at least 5%.

All assay batches received to date have passed QAQC review and fall within acceptable tolerance limits.

Core recoveries for all holes were within acceptable ranges, with sampling procedures carefully managed

in intervals where ground conditions were variable or fragile.

About Great Pacific Gold

Great Pacific Gold’s vision is to become the leading gold -copper development company in Papua New

Guinea ("PNG"). The Company has a portfolio of exploration-stage projects in PNG, as follows:

• Wild Dog Project: the Company’s flagship project is located in the East New Britain province of

PNG. The project consists of a large -scale epithermal target, the Wild Dog structural corridor,

stretching 15km in strike length and potentially over 1,000 meters deep based on a recent

MobileMT geophysics survey. The survey also highlighted the Magiabe porphyry target, adjacent

to the epithermal target and potentially 1,000 meters in diameter and over 2,000 meters deep.

Drilling of the epithermal structure on the Sinivit target has yielded high- grade results, including

WDG-02 which intercepted 7.0 meters a t 11.2 g/t AuEq from 65 m eters. The current drilling

program will extend into 2026 with 5,000 meters planned over 28 holes.

• Kesar Project: located in the Eastern Highlands province of PNG and contiguous with the mine

tenements of K92 Mining Inc. ("K92"), the Kesar Project is a greenfield exploration project with

several high -priority targets in close proximity to the property boundary with K9 2. Multiple

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epithermal veins at Kesar are on strike and have the same orientation as key K92 deposits, such

as Kora. Exploration work to date by the Company at the Kesar Project has shown that these veins

have high grades of gold present in outcrop and very elevated gold in soil grades, coincident with

aeromagnetic highs. The Company conducted a diamond drill program on key target areas at the

Kesar Project from November 2024 to May 2025 and are working on developing a follow-up Phase

2 program for Q1 2026.

• Arau Project: also located in the Eastern Highlands province of PNG, the Arau Project is south of

and contiguous to the mine tenements of K92. Arau contains the highly prospective Mt. Victor

exploration target with potential for a high sulphidation epithermal gold -base metal deposit. A

Phase 1 Reverse Circulation drilling program was completed at Mt. Victor in August 2024, with

encouraging results. The Arau Project includes the Elandora licence, which also contains various

epithermal and copper-gold porphyry targets.

The Company also holds the Tinga Valley Project in PNG.

Forward-Looking Statements

Information set forth in this news release contains forward- looking statements that are based on

assumptions as of the date of this news release. These statements reflect management's current

estimates, beliefs, intentions and expectations. They are not guarantees of future performance. Great

Pacific Gold cautions that all forward- looking statements are inherently uncertain and that actual

performance may be affected by many material factors, most of which are beyond their respective control.

Such factors include, among other things: risks and uncertainties relating to Great Pacific Gold's limited

operating history, its exploration and development activities on its mineral properties and the need to

comply with environmental and governmental regulations. Accordingly, actual and future events,

conditions and results may differ materially from the estimates, beliefs, intentions and expectations

expressed or implied in the forward- looking information. Except as required under applicable securities

legislation, Great Pacific Gold does not undertake to publicly update or revise forward-looking information.

Mineralization at the properties held by K92 Mining is not necessarily indicative of mineralization at the

Wild Dog Project.

Neither 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.