Westhaven Announces the Start of Exploration at the Spences Bridge Gold Belt Properties, Southern British Columbia

Westhaven Gold Corp. (WHN) has initiated a 15,000-meter exploration drilling program at its Shovelnose and Prospect Valley properties, marking the mobilization of a fifth drill rig. Concurrently, the company’s ongoing 35,000-meter resource infill drilling program at the South Zone is 54% complete, with 61 holes totaling 18,925 meters drilled.

Selected assay results from the infill program highlight significant mineralization. Key intercepts include:

• SNR26-83: 9.85 m @ 8.30 g/t Au and 11 g/t Ag from 301.65 m
• SNR26-92: 11.46 m @ 4.59 g/t Au and 43 g/t Ag from 160.54 m
• SNR26-79: 4.28 m @ 10.26 g/t Au and 57 g/t Ag

The company states that these results confirm the continuity of gold and silver mineralization within Vein Zones 1, 2, and 3 of the South Zone deposit. Additional intervals reported show grades ranging from 3 to 10 g/t Au.

Early-stage surface work continues at Prospect Valley, where soil sampling and float samples have returned grades up to 3.20 g/t Au. At Shovelnose, follow-up to an airborne survey has yielded grab samples with grades up to 2.45 g/t Au. All activities are funded under the Dundee Corporation earn-in agreement, which allows for up to CDN$85 million in staged expenditures.

Westhaven Gold Corp. (WHN) reported that South Zone infill results are confirmatory, supporting existing resource estimates and Preliminary Economic Assessment (PEA) assumptions without materially altering the deposit’s dimensions, grade, or tonnage. No new vein zones or major step-outs were identified.

The company has initiated a 15,000 m exploration program, marking an operational milestone that carries no assay data. This represents a commitment to future work rather than a current value event.

Westhaven’s stock price has remained stagnant in the $0.26–$0.30 range for weeks, suggesting that the market has already priced in these types of infill releases. The equity did not rally ahead of the news, and there is no immediate catalyst to re-rate the stock.

As a developer with a PEA complete and a Preliminary Feasibility Study (PFS) underway, infill drilling is considered routine. Material events would require a discovery or major de-risking, such as PFS results or a new high-grade zone, neither of which was present in this release.

Westhaven Gold Corp. is a junior precious metals explorer and developer focused on the Spences Bridge Gold Belt in British Columbia. Its flagship Shovelnose project hosts a high-grade epithermal gold-silver deposit with an Indicated Resource of 3.44 Mt @ 6.1 g/t Au (677 koz Au) and an Inferred Resource of 2.29 Mt @ 3.6 g/t Au (270 koz Au). A 2025 PEA outlined an 11-year underground mine producing ~56,000 oz Au annually, with an after-tax NPV(6%) of CDN$454M and an IRR of 43.2% at US$2,400/oz Au.

In February 2026, Dundee Corporation closed a staged earn-in agreement to fund up to CDN$85M in project expenditures for up to a 60% interest, committing a minimum CDN$30M. This has fully financed a 50,000 m 2026 drill program.

The company controls approximately 60,263 ha across four properties, offering district-scale exploration upside beyond the South Zone.