• Assays are still pending for 84 holes from this years drilling, of which 66 representing 79% contain visible gold to the naked eye (VG-NE).
• Drill hole GD-25-372 intersected 10.72 g/t Au over 7.83 meters, including 20.37 g/t Au over 4.10 meters containing multiple occurrences of VG-NE. Within a zone of strong quartz-sulphide veining hosted in the andesite unit belonging to the Bonanza Zone that remains wide open. The intercept is approximately true width, and these assays reflect gold only (AuEq value in the interval will be adjusted accordingly once Ag, Cu, Pb and Zn are received); see images below.
  • Two accompanying infographics are available at:

https://www.globenewswire.com/NewsRoom/AttachmentNg/0123e8a5-4eac-41e5-9cc2-e469209206a
https://www.globenewswire.com/NewsRoom/AttachmentNg/100841d1-ba08-41de-80eb-832ce4868097

• Drill hole GD-25-373 intersected 6.30 g/t Au over 7.50 meters, including 10.11 g/t Au over 4.67 meters, part of a zone of quartz-sulphide veining hosted in the sandstone unit corresponding to the Surebet Zone that remains wide open. The intercept is approximately true width, and these assays reflect gold only (AuEq value in the interval will be adjusted accordingly once Ag, Cu, Pb and Zn are received); see image below.
• Drill hole GD-25-324 intersected 6.11 g/t Au over 7.65 meters, including 8.04 g/t Au over 5.79 meters, from an interval corresponding to the Surebet Zone, containing VG-NE in quartz-sulphide veins. The intercept is approximately true width, and these assays reflect gold only (AuEq value in the interval will be adjusted accordingly once Ag, Cu, Pb and Zn are received); see image below.
  • An accompanying infographic is available at: 

https://www.globenewswire.com/NewsRoom/AttachmentNg/93c40863-5d4e-40d2-ad9f-06b4893b04c8 

• Drill hole GD-25-370 intersected two broad intervals of gold mineralization. The first assayed 2.20 g/t Au over 22.00 meters, including 4.63 g/t Au over 4.99 meters. The second assayed 4.58 g/t Au over 5.00 meters. From a zone of strong quartz-sulphide stockwork hosted in the andesite unit with multiple occurrences of VG-NE corresponding to the Bonanza Zone. The intercept is approximately true width, and these assays reflect gold only (AuEq value in the interval will be adjusted accordingly once Ag, Cu, Pb and Zn are received); see image below.
  • An accompanying infographic is available at: 

https://www.globenewswire.com/NewsRoom/AttachmentNg/92fac429-30e9-4e8c-93c0-9ad8c625e0fd

• Drilling was focused on expanding the Surebet high-grade gold discovery and has intersected high-grade gold mineralization in multiple drill holes along 580 meters of strike. Delineating broad zones of high-grade gold mineralization within the Surebet-Bonanza intersection domains confirming excellent grades, widths and continuity. As demonstrated by drill results to date where 30 holes in the Surebet system have >1 oz/t Au (31.1 g/t Au) intervals and remain wide open (see image below).
  • An accompanying infographic is available at: 

https://www.globenewswire.com/NewsRoom/AttachmentNg/43f3f344-79d3-40ce-aabe-2ff8c1815b1c 

• High-grade gold has been identified in three distinct rock packages discovered to date on Surebet. This includes the gently dipping gold-rich stacked quartz-sulphide breccias/stockwork veins; the gold-rich intermediate to felsic Eocene-aged Reduced Intrusive Related Gold (RIRG) dykes; and the recently discovered broad gold-rich zones of calc-silicate altered breccia. All of which contain substantial amounts of VG-NE (from fine-grained to coarse-grained gold) and remain wide open for expansion. This confirms the presence of a Motherlode magmatic source at depth, a causative intrusion responsible for the extensive 1.8 km² high-grade gold system at Surebet.
• The completed and fully funded 2025 drill campaign significantly exceeded the initial plans, for a total of 64,364 meters of systematic drilling with 9 drill rigs. The campaign aimed at expanding the geometry of the Surebet Discovery laterally and to depth. 100% of the drilling was focused on the Surebet Discovery, where the Company designed a detailed campaign that tested for the Motherlode intrusive gold source, the mineralized RIRG Eocene-aged dykes, infill drilling within the known stacked veins, as well as expanding the known mineralized veins laterally and to depth.
• 100% of the drill holes completed to date on Surebet have intersected substantial quartz-sulphide mineralization and 76% of 110 drill holes totaling 83 completed in 2025 contain VG-NE. This clearly demonstrates the continuity and predictability of this expansive gold-rich system.
• 92% of the holes (355 out of 386) drilled to date at Surebet contain VG-NE (see heat map below).
  • An accompanying infographic is available at: 

https://www.globenewswire.com/NewsRoom/AttachmentNg/0457c9a9-1857-4186-ac06-75836f911853 

• The Surebet Discovery has widespread drill holes representing more than 600 pierce points over an area of 1.8 km² or greater than half the size of Central Park, New York City, returning high metal values showing it has the potential to be an important grassroots high-grade gold discovery in the Golden Triangle.

Goliath Resources Limited (TSX-V: GOT) (OTCQB: GOTRF) (FSE: B4IF) is pleased to announce additional assay results from its 2025 drill program where drill hole GD-25-372 intersected 10.72 g/t Au over 7.83 meters, including 20.37 g/t Au over 4.10 meters at the Surebet Discovery on its 100% controlled Golddigger Property (the “Property”), Golden Triangle, British Columbia.

100% of the drill holes completed to date on Surebet have intersected substantial quartz-sulphide mineralization as well as 76% or 83 of the 110 drill holes from 2025 contain gold visible to the naked eye (VG-NE) clearly demonstrating the discovery potential remaining on the property. The intercepts reported are approximately true width and reflect gold only assays (AuEq values will be adjusted accordingly once Ag, Cu, Pb and Zn are received). Assays are still pending for 84 holes from this years drilling, of which 66 representing 79% contain VG-NE.

Dr. Quinton Hennigh, Geologic & Technical Advisor to Crescat Capital and Goliath, states: “This year, Goliath started its drill season with a well planned drill program designed to infill and grow the expansive high-grade lode system at Surebet. The Company executed this work with precision and efficiency. Now, we get to see the results, strong and thick intercepts of gold mineralization that continues to build more continuity in key quartz-sulfide lodes including Bonanza and Surebet. Thicknesses and grades of intervals reported in this release bode well for potential bulk underground mining. While silver and base metal results are still awaited, the gold results alone are strong. We look forward to seeing many more such results return over coming months.”

Mr. Roger Rosmus, Founder & CEO of Goliath states: “We recently wrapped up our 2025 drilling season and have submitted all our drill hole samples to the lab for assaying. So far, we have only reported 26 out of 110 holes with 84 holes remaining to be announced of which 66 representing 79% contain VG-NE in the news pipeline. Every season, since the discovery, this grassroots project has continued to expand. Considering that we have drilled over 156,000 meters to date, we still see all of the various zones in three distinct rock packages with widespread dissemination of VG-NE that remains open. The Company is fully funded for the 2026 drill program. We look forward to announcing the balance of our assay results once they are received, compiled and interpreted.”

Drilling was focused on expanding the Surebet high-grade gold discovery and has intersected high-grade gold mineralization in multiple drill holes along 580 meters of strike. Delineating broad zones of high-grade gold mineralization within the Surebet-Bonanza intersection domains confirming excellent grades, widths and continuity. As demonstrated by drill results to date where 30 holes in the Surebet system have >1 oz/t Au (31.1 g/t Au) intervals and remain wide open.

Drill hole GD-25-372 intersected 10.72 g/t Au over 7.83 meters including 20.37 g/t Au over 4.10 meters containing multiple occurrences of VG-NE within a zone of strong quartz-sulphide veining hosted in the andesite unit belonging to the Bonanza Zone. Drill hole GD-25-373 intersected 6.30 g/t Au over 7.50 meters, including 10.11 g/t Au over 4.67 meters, part of a zone of quartz-sulphide veining hosted in the sandstone unit corresponding to the Surebet Zone. Drill hole GD-25-324 intersected 6.11 g/t Au over 7.65 meters, including 8.04 g/t Au over 5.79 meters, from an interval corresponding to the Surebet Zone containing VG-NE in quartz-sulphide veins. Drill hole GD-25-370 intersected two broad intervals of gold mineralization that assayed 2.20 g/t Au over 22.00 meters, including 4.63 g/t Au over 4.99 meters and the second assayed 4.58 g/t Au over 5.00 meters from a zone of strong quartz-sulphide stockwork hosted in the andesite unit with multiple occurrences of VG-NE corresponding to the Bonanza Zone.

All intercepts are approximately true width, and these assays reflect gold only (AuEq value in the interval will be adjusted accordingly once Ag, Cu, Pb and Zn are received). The gold grades, coupled with VG-NE within substantial quartz-sulphide veins, stockworks, and breccias, which are mineralized with sphalerite, pyrrhotite, and chalcopyrite, highlight the potential for further expansion.

Table 1: Assay highlights from 2025 drill holes reported in this news release.

High-grade gold mineralization has been confirmed in three distinct rock packages at the Surebet Discovery, which include: gently-dipping gold-rich mineralized stacked quartz-sulphide breccias/stock work veins; gold-rich intermediate to felsic Eocene-aged RIRG dykes that crosscut the veins; and the broad zones of calc-silicate altered breccia. All three rock packages contain substantial amounts of VG-NE (from fine-grained to coarse-grained gold) and remain wide open. Which strongly indicates the presence of a Motherlode magmatic causative source at depth responsible for the widespread high-grade gold mineralization at the Surebet Discovery.

Table 2: Collar information for drill holes reported in this news release.

The 2025 drill consisted of 64,364 meters of systematic drilling with 9 drill rigs. The campaign was aimed at expanding the geometry of the Surebet Discovery laterally and to depth. 100% of the drilling was focused on the Surebet Discovery. The Company designed a detailed drill plan that consisted of: testing for the Motherlode Magmatic intrusive gold source; testing an additional 13 Eocene-aged dykes observed on the surface that had never been drill tested for RIRG mineralization; infill drilling with the goal of increasing pierce points density in all known stacked veins. With a particular focus on the highest-grade areas from the Bonanza Zone and Surebet Zone intersection domain; testing zones where the RIRG dykes and gently dipping veins crosscut which are being called Goldilocks Zones (as they are key locations where there are two styles of gold mineralization enriching the zones) and expanding the known mineralized veins laterally and to depth where they currently remain open.

Surebet Discovery Highlights

• 83 out of 110 holes (or 76%) drilled in 2025 contain VG-NE and 100% of drill holes have intersected substantial quartz-sulphide mineralization. Assays are still pending on 84 holes of which 66 representing 79% contain VG-NE.
• 60 out of 64 holes (or 94%) drilled in 2024 contain VG-NE up to 11.5 mm (7/16 inches) in size, all of which returned high-grade gold.
• 92% of the holes (355 out of 386) drilled to date at Surebet contain VG-NE (see heat map above).
• The best hole drilled to date is GD-24-260 previously reported from the Bonanza Zone assayed 34.52 g/t AuEq (34.47 Au and 3.96 Ag) over 39.00 meters, including 132.93 g/t AuEq (132.78 Au and 12.98 Ag) over 10.00 meters, and 166.04 g/t AuEq (165.84 Au and 16.07 Ag) over 8.00 meters (see news release dated January 13, 2025).
• The best hole drilled to date from the RIRG Eocene-aged dykes is GD-22-58 that assayed 12.03 g/t AuEq (11.84 g/t Au and 15.61 g/t Ag) over 10.00 meters including 19.91 g/t AuEq (19.62 g/t Au and 25.61 g/t Ag) over 6.00 meters, including 23.82 g/t AuEq (23.47 g/t Au and 30.54 g/t Ag) over 5.00 meters, plus a second separate interval down hole of 8.59 g/t AuEq (8.35 g/t Au and 20.74 g/t Ag) over 5.00 meters (see news release dated March 13, 2025).
• The best hole drilled to date from the third distinct rock package consisting of calc-silicate altered breccia is drill hole GD-25-337, which intersected 10.60 g/t Au over 22.82 meters, including 15.19 g/t Au over 15.71 meters, including two separate intervals consisting of 37.28 g/t Au or 1.20 oz/t Au over 3.36 meters and 36.11 or 1.16 oz/t Au over 3.08 meters. The intercept is approximately true width, and these assays reflect gold only (AuEq value in the interval will be adjusted accordingly once Ag, Cu, Pb and Zn are received).
• Multiple gently-dipping gold-mineralized stacked veins have been identified every year on the Surebet high-grade gold discovery. Recent discoveries include RIRG Eocene-aged dykes, Goldilocks Zones where the veins and vertical RIRG dykes crosscut (which are characterized by having high-grade gold in two temperature regimes) and recently discovered high-grade gold in a third distinct rock package, which increases potential tonnage and gold content of the high-grade gold system at the Surebet Discovery.
• A total of 12 stacked gently dipping high-grade gold veins extend for 1.2 kilometers at the Surebet discovery, have been enhanced by four high-grade RIRG Eocene-aged dykes that are up to 25 meters wide and exposed along strike at surface for up to 1,500 meters have been discovered and modelled to date (see news release dated June 23, 2025).
• The footprint of the mineralization discovered to date at Surebet is 1.8 km² that is greater than half the size of Central Park in New York City and remains open in all directions.
• Thanks to the mountainous topography, mineralization in the veins is exposed on the surface for 2.1 km of strike (1.0 km on the south slope and 1.1 km on the north slope) with a vertical relief of 700 meters
• A study completed by the Colorado School of Mines confirms a new interpretation of the ore forming process of high-grade gold mineralization at Surebet and outlines a common magmatic source for the high-grade gold system, now in three distinct rock packages. Which gives the Surebet untapped discovery potential to increase tonnage and gold content in the various known rock packages. Until this study, researchers and explorers in the Golden Triangle had not recognized the high-grade gold discovery potential in the Eocene-aged RIRG dykes (see news release March 13, 2025), which is showing the potential that these discoveries could be a geological breakthrough in the Golden Triangle of British Columbia.
• Goliath has drilled over 156,000 meters with over 600 pierce points in the Surebet Discovery located at the Golddigger property between 2021 and 2025.
• The Surebet Discovery has predictable continuity and good metallurgy with gold recoveries of 92.2% from gravity and flotation at a 327-micrometer crush including 48.8% free gold recovery from gravity alone (no cyanide required to recover the gold). The metallurgy completed to date shows a benign rock composition without deleterious elements (see news release March 1, 2023).
• Based on positive grassroots exploration and drill results in recent years, Goliath significantly increased its land package from 66,608 hectares to 91,518 hectares (226,146 acres) and now controls 56 kilometers of key terrain of the Red Line geologic trend providing for additional discovery potential.
• The Golddigger Property is located on tidewater with a barge route to Prince Rupert (190 km south) and close to infrastructure including the town of Kitsault adjacent to a permitted mine site on private property.

About Golddigger Property

The Golddigger Property is 100% controlled and covers an area of 91,518 hectares in a highly prospective geological setting of the Eskay Rift, within 3 kilometers of the Red Line in the Golden Triangle of British Columbia. This area, in close proximity to the Red Line, has hosted some of Canada’s greatest gold mines including Eskay Creek, Premier and Snip. Other significant and well-known deposits in the Golden Triangle include Brucejack, Copper Canyon, Galore Creek, Granduc, KSM, Red Chris, and Schaft Creek. Goliath controls 56 kilometers of the Red Line which is a geologic contact between Triassic age Stuhini rocks and Jurassic age Hazelton rocks used as key markers when exploring for gold-copper-silver mineralization.

The Surebet discovery has predictable continuity and good metallurgy with gold recoveries from gravity and flotation at a 327-micrometer crush of 92.2% including 48.8% free gold from gravity alone (no cyanide required to recover the gold). The metallurgy completed to date shows no deleterious elements are present (see news release dated March 1, 2023).

The Property is in an excellent location in close proximity to the communities of Alice Arm and Kitsault where there is a permitted mill site on private property. It is situated on tide water with direct barge access to Prince Rupert (190 kilometers via the Observatory inlet/Portland inlet). The town of Kitsault is accessible by road (190 kilometers from Terrace, 300 kilometers from Prince Rupert) and has a barge landing, dock, and infrastructure capable of housing at least 300 people, including high-tension power.

Additional infrastructure in the area includes the Dolly Varden Silver Mine Road (only 7 kilometers to the East of the Surebet discovery) with direct road access to Alice Arm barge landing (18 kilometers to the south of the Surebet discovery) and high-tension power (25 kilometers to the east of Surebet discovery). The city of Terrace (population 16,000) provides access to railway, major highways, and airport with supplies (food, fuel, lumber, etc.), while the town of Prince Rupert (population 12,000) is located on the West Coast of British Columbia and houses an international container seaport also with direct access to railway and an airport.

About CASERM (Center to Advance the Science of Exploration to Reclamation in Mining)

Goliath Resources is a paying member and active supporter of the Center to Advance the Science of Exploration to Reclamation in Mining (CASERM), which is one of the world’s largest research centers in the mining sector. CASERM is a collaborative research venture between Colorado School of Mines and Virginia Tech that is supported by a consortium of mining and exploration companies, analytical instrumentation and software companies, and federal agencies aiming to transform the way geoscience data is acquired and used across the mining value chain. The center forms part of the I-UCRC program of the National Science Foundation. Research focuses on the integration of diverse geoscience data to improve decision making across the mine life cycle, beginning with the exploration for subsurface resources continuing through mine operation as well as closure and environmental remediation. Over the past three years, Goliath Resources’ membership in CASERM has allowed a high level of research to be performed on the Surebet Discovery.

Qualified Person

Rein Turna P. Geo is the qualified person as defined by National Instrument 43-101, for Goliath Resource Limited projects, and supervised the preparation of, and has reviewed and approved, the technical information in this release. Mr. Turna is an Independent Director of the Company.

About Goliath Resources Limited

Goliath Resources is an explorer of precious metals projects in the highly prospective Golden Triangle of Northwestern British Columbia. All of its projects are in high quality geological settings and geopolitical safe jurisdictions amenable to mining in Canada. Goliath is a member and active supporter of CASERM which is an organization that represents a collaborative venture between Colorado School of Mines and Virginia Tech. Goliath recently completed its largest fully funded drill campaign to date for a total of 64,364 meters in 2025. The Company’s key strategic cornerstone shareholders include Crescat Capital, a Global Commodity Group (Singapore), McEwen Inc. (NYSE: MUX) (TSX: MUX), Waratah Capital Advisors, Mr. Rob McEwen, Mr. Eric Sprott and Mr. Larry Childress.