1911 Gold Intersects up to 58.66 g/t Gold over 1.40 m on San Antonio West Zone at True North

Press Release

Vancouver, British Columbia, June 10, 2025 – 1911 Gold Corporation (“1911 Gold” or the “Company”) (TSXV: AUMB; OTCBB: AUMBF; FRA: 2KY) is pleased to announce the assay results from twelve (12) drill holes for 3,208.0 metres (“m”) from the ongoing surface drill program at the True North Gold Project. The True North project, including a permitted mill, camp, and tailings facility, is centrally located within the Company’s 100%-owned Rice Lake Gold property in southeast Manitoba, Canada.

Highlights:

Drilling has continued to expand the near-surface quartz vein hosted gold (“Au”) mineralization on the new San Antonio West (“SAM West”) target along strike and to depth

San Antonio West Target

Drill results confirmed the western and down dip extensions of gold mineralization within the prolific San Antonio mafic unit up to 350 m down dip and 500 m along strike, including:
- TN-25-057: Intersected 58.66 grams per tonne (g/t) Gold (Au) over 1.40 m at a downhole depth of 145.00 m, including 63.20 g/t Au over 0.90 m and 50.50 g/t Au over 0.50 m
- TN-25-056: Intersected 9.59 g/t Au over 2.30 m at a downhole depth of 103.10 m, including 11.25 g/t Au over 1.80 m, including 21.30 g/t Au over 0.50 m
- TN-25-058: Intersected 10.40 g/t Au over 1.00 m at a downhole depth of 249.30 m

“These are some of the best results we’ve seen to date from the San Antonio West target.”, Shaun Heinrichs, CEO and President, stated, “The drilling confirms the potential definition of high-grade ore shoots within the SAM West target zone, and further supports our geological model. These results build the case for continued underground exploration, where we see significant potential to define and expand new and existing mineral resources within the mine infrastructure.”

Figure 1: True North: Geology and SAM West and Gate Drill Hole Location Map

1911 Gold has completed fifty-one (51) surface drill holes, for a total of 11,695.4 m on the current drill program, which commenced in October 2024 on new exploration targets located within the True North Gold mine footprint. The results of seven (7) new drill holes for 1,928.0 m from the San Antonio West target and five (5) initial drill holes for a total of 1,280.00 m from the Gate target are included in this release. New targets have been generated and drill tested within prospective host rocks and mineralized structural settings, including significant historical drill results. The results from nine (9) additional exploration drill holes are currently pending. Additional drill planning is underway on the San Antonio West and San Antonio Southeast targets and will commence when access to the Mine site is permitted (see press release entitled “1911 Gold Temporarily Suspends Operation at True North Complex due to Bissett Evacuation Order”, dated May 30, 2025). The exploration drilling plan includes up to 30,000 m of drilling by the end of 2025.

San Antonio West Target: Discussion of Results

Drilling completed to date has confirmed the extensions of gold mineralization within the SAM gabbro to over 600 m west of the historically mined San Antonio zone, covering an area 500 m long and over 260 m to depth, dipping 50º to the northeast. Twenty-one (21) drill holes for a total of 4,220.0 m have been completed to date on the SAM West target area.

Figure 2: BB’ True North Cross Section* (Looking NW)

The latest drill holes, comprised of seven (7) new drill holes for 1,928.0 m, extended the footprint of mineralization 100 m down dip from the results announced on April 30, 2025 (see press release entitled “1911 Gold Intersects 62.40 g/t Au over 1.00 m on San Antonio West at True North”).

Drill hole TN-25-056, designed to undercut high grade gold mineralization intersected in drill hole TN-25-037 (1.00 m @ 8.73 g/t Au, 1.00 m @ 62.40 g/t Au and 0.70 m @ 6.09 g/t Au and 4.50 m @ 4.17 g/t Au), intersected 2.30 m @ 9.59 g/t Au, including 1.80 m @ 11.25 g/t Au and 0.50 m @ 21.30 g/t Au. Drilling successfully extended the gold mineralization approximately 50 m down dip and returned high-grade gold results.

Drill hole TN-25-057 (1.40 m @ 58.66 g/t Au) tested the down-dip extensions of the high-grade gold intercepts of previously released holes TN-24-043 (1.00 m @ 12.50 g/t Au) and TN-24-045 (3.70 m @ 6.84 g/t Au, including 1.40 m @ 12.40 g/t Au and 2.70 m @ 5.30 g/t Au, including 0.50 m @ 11.30 g/t Au). Drilling successfully intercepted high-grade gold mineralization approximately 160 m down dip.

Drill hole TN-25-058 (0.50 m @ 10.40 g/t Au) designed to test the 160 m down-dip extension of the gold mineralization from hole TN-25-056, intersected three distinct gold mineralized veins extending the multiple vein structures to 340 m depth.

Table 1: Select Significant Drill Hole Assay Results

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