Signature Resources (TSXV: SGU) Advances Lingman Lake with Deeper Gold Zone Extensions

Highlights

• Signature Resources extended the North and South gold zones by 200 metres through drill hole LM25-05 at the Lingman Lake Gold Project .
• The company reported 1.37 g/t gold over 32 metres, including 8 metres averaging 3.75 g/t gold in South Zone B.
• The drilling validated the geological model and identified priority targets for future resource expansion.
• Signature Resources streamlined its land holdings while retaining claims across ~85% of the Lingman Lake Greenstone Belt.

Signature Resources Ltd. (TSXV:SGU) continues to build momentum at its 100%-owned Lingman Lake Gold Project in Northwestern Ontario as its latest drilling campaign pushes the deposit deeper and strengthens confidence in its long-term exploration strategy. The company's newest assay results confirm that its geological model accurately predicted the location of multiple gold-bearing zones, with drill hole LM25-05 extending both the North and South zones by 200 metres at depth.

Alongside these deeper discoveries, the program has also outlined several new exploration targets that could support future resource growth across the project.

Lingman Lake Resource Base

Signature Resources is focused on expanding its wholly owned Lingman Lake Gold deposit, located in the prolific Red Lake district of Northwestern Ontario.

The property covers approximately 23,033 hectares and includes historic underground infrastructure comprising a 126.5-metre shaft and three underground levels. More than 43,000 metres of drilling have been completed on the property, alongside four historical bulk samples that averaged 19 g/t gold.

The company's initial NI 43-101 mineral resource estimate outlines 95,200 ounces of gold in the indicated category and 674,320 ounces of gold in the inferred category using a 0.30 g/t cut-off grade.

Drill Hole LM25-05 Extends Gold Zones at Depth

The latest results represent the final diamond drill holes completed east of the diabase dyke during the 2025-26 winter drilling program, which was designed to evaluate the depth extensions of the Lingman Lake deposit.

Drill hole LM25-05 successfully extended the North Zone by 200 metres to a vertical depth of 600 metres while also extending the South Zone by 200 metres to a vertical depth of 400 metres. According to the company, the hole intersected all three principal gold zones exactly where its geological model predicted, providing further confidence in the continuity of mineralization at depth.

The strongest intercepts included 1.37 grams per tonne (g/t) gold over 32 metres within South Zone B, highlighted by an eight-metre interval averaging 3.75 g/t gold . North Zone B returned 1.62 g/t gold over seven metres , marking the deepest intercept recorded within the North Zone.

Multiple Mineralized Zones Continue at Depth

The South Zone mineralized envelope extends across approximately 128 metres and has now been traced to a vertical depth of 400 metres.

South Zone A returned 0.12 g/t gold over 21 metres, including a two-metre interval grading 0.81 g/t gold. South Zone B delivered the strongest results, averaging 1.37 g/t gold over 32 metres, including eight metres grading 3.75 g/t gold.

The drilling also intersected both segments of the Central Zone. The CZ-A segment returned 0.61 g/t gold over 22 metres, while the hanging wall yielded 1.95 g/t gold over five metres and the footwall returned 0.54 g/t gold over six metres. CZ-B averaged 0.30 g/t gold over 14 metres.

Within the North Zone, NZ-A returned 0.16 g/t gold over 18 metres before NZ-B delivered 0.70 g/t gold over 20 metres, including the higher-grade seven-metre interval averaging 1.62 g/t gold. These results extend the North Zone to its deepest confirmed level of approximately 600 metres vertically.

Winter Drill Program Advances Multiple Objectives

The winter drilling campaign comprised nine holes totaling 4,006 metres and concluded in early May, with all drill core submitted to SGS laboratories for analysis.

Assay results remain pending for drill holes LM25-06, LM25-07 and LM25-08, which targeted the western extension of the West Zone beyond the diabase dyke.

The company also completed drill hole LM25-10 to test the western portion of a 1,700-metre Very Low Frequency (VLF) conductor. The hole intersected 0.14 g/t gold over eight metres at a drilling depth of 125 metres, corresponding with the conductor.

Geological Model Defines Future Drill Targets

The primary goals of the winter drilling program were to evaluate depth extensions east of the diabase dyke and lateral extensions to the west, both of which have the potential to expand the Lingman Lake resource.

Results from LM25-05 reinforced the interpretation that the Quartz Feldspar Porphyry intrusion plunges westward while confirming the continuity of the North, Central and South gold zones. Based on these findings, the company has identified Target Area A as a priority exploration area because it remains completely untested between drill holes LM25-03 and LM25-05 and is open at depth.

Additional opportunities have also been identified in Target Areas B, C and D, where infill drilling and further testing could help define additional mineralization.

New Regional Exploration Opportunity Emerges

Drill hole LM25-10 also evaluated a 1,712-metre VLF electromagnetic conductor near Base Lake.

Besides intersecting 0.14 g/t gold over eight metres, the hole encountered a broad anomalous gold envelope extending from near surface to 53 metres depth. According to the company, these geological features resemble those observed around the Lingman Lake gold zones.

Signature Resources noted that numerous similar VLF conductors occur across its large land package within the Lingman Lake Greenstone Belt, creating additional regional exploration opportunities supported by airborne geophysical surveys.

Land Package Streamlined

The company has completed a restructuring of its mineral claims to simplify administration under Ontario's Mining Lands Administration System.

Its holdings have been consolidated from 1,274 single-cell claims into 159 multi-cell claims, while retaining 25 single-cell claims, four fully patented freehold claims and 14 patented mineral rights claims covering approximately 23,033 hectares.

As part of the restructuring, 92 peripheral claims covering 1,187 hectares were relinquished. Signature Resources continues to retain claims covering roughly 85% of the 32-kilometre-wide Lingman Lake Greenstone Belt.

What's Next?

With drilling successfully extending the North and South zones at depth while validating the company’s geological model, Signature Resources has outlined several priority areas for future exploration. The company is awaiting assay results from three remaining drill holes targeting the western extension of the West Zone, while Target Area A has emerged as a key focus because of its untested potential across all three gold zones.

At the same time, the newly identified Base Lake VLF conductor and the streamlined land package provide additional opportunities to advance exploration across the Lingman Lake Greenstone Belt as the company works toward expanding its mineral resource.

Shares of SGU last traded at CAD 0.040 on June 24, 2026.