SITKA GOLD CORP

Sitka Gold Corp’s Flagship RC Gold Project in the Dawson-Mayo Region of the Tombstone Gold Belt in west central Yukon currently hosts pit-constrained indicated mineral resources at a cutoff of 0.3 g/t Au of 39.962Mt at 1.01 g/t Au containing 1.291Moz Au in Blackjack and total inferred mineral resources of 167.423Mt at 0.72g/t Au containing 3.829Moz in three zones:  Blackjack, Rhosgobel and Eiger.  Gold mineralization is predominantly associated with quartz veining occurring within mid-Cretaceous intrusive stocks and adjacent intruded sediments (hornfels), with significant mineralization associated with intense stockwork or sheeted veining, which are typical of the Reduced Intrusive-Related Gold systems (RIGS).

On June 23, 2026 Sitka Gold released results from six (6) additional step-out drill holes at the Blackjack deposit (Figure 1).  These holes continue to intersect significant intervals of high-grade gold mineralization:

• 5 m of 1.62 g/t Au including 2.0 m of 11.85 g/t Au and a separate interval of 197.0 m of 1.06 g/t Au including 2.0 m of 9.95 g/t Au (DDRCCC-26-125) (Figure 2);
• 97 m g/t Au, including 106.9 m of 1.36 g/t Au and 2.0 m of 15.45 g/t Au (DDRCCC-26-123) (Figure 3);
• 1 m of 1.33 g/t Au, including 110.0 m of 1.63 g/t Au, including 2.0 m of 12.35 g/t Au (DDRCCC-26-126) (Figure 3).

Over 18,000 m of expansion drilling has been completed at the Blackjack deposit across 40 holes since the last MRE for Blackjack was published in January 2025; effectively doubling the meterage completed since the last resource estimate was calculated.

Six drill rigs are currently turning on the Project at Blackjack, Rhosgobel and Saddle. Approximately 17,600 m of diamond drilling has been completed to date this year in 30 drill holes across the Blackjack and Rhosgobel deposits as part of the ongoing 60,000 m drill program planned for 2026.

As noted by the Company, these drill results continue to demonstrate the impressive scale, continuity and high-grade nature of the Blackjack gold deposit and further strengthen confidence in the overall potential to significantly grow resources.  Already, the amount of drilling completed since the initial MRE at Blackjack has been doubled, and the deposit continues to remain open.

Figure 1
Source: Sitka Gold

Plan map of drilling completed at the Blackjack deposit, highlighting results from drill holes reported (Sitka Gold Corp. press release June 23, 2026).

Figure 2
Source: Sitka Gold

Cross section of DDRCCC-26-125 showing broad high-grade gold intervals intercepted in the latest drilling at Blackjack (Sitka Gold Corp. press release June 23, 2026).

Figure 3
Source: Sitka Gold

Cross section of DDRCCC-26-123 and DDRCCC-26-126 showing broad high-grade gold intervals intercepted in the latest drilling at Blackjack (Sitka Gold Corp. press release June 23, 2026).