Castle Minerals: Advancing Strategic Gold Exploration Assets in Ghana’s

• 4,000 meters of diamond drilling around the F2 zone targeting high-grade silver and gold surface samples aligned with strong gravity and electromagnetic geophysical anomalies (Figure 1) .
• Geophysical gravity infill survey and rock-chip sampling program to refine multiple potential drill targets across the property.
• Geophysical magnetic high-resolution UAV survey to outline previously identified surface lineaments that may delineate mineralized structures.

Rory Quinn, President & CEO, stated , ” Work at Star River in 2024 delivered superb drill targets, and we are excited to advance our understanding of the scale of the property’s mineral potential. With a strong correlation between geophysical anomalies and surface mineralization, the upcoming drill program is a critical next step to test these compelling targets. Additionally, the UAV magnetic and gravity infill surveys will provide valuable structural and geological insights to further refine our exploration strategy. We look forward to commencing our 2025 drill season and to unlocking new discoveries.”

Building on the strong geophysical results and the success of the previous seasons’ rock-chip sampling, which returned multiple samples over 1000 g/t silver and gold up to 101 g/t, the company is set to begin a 4,000-meter drill program. The primary focus will be on a high-priority target in the southern section of the property where a strong gravity anomaly extends for approximately 800 meters north-south. This coincides with a Time-Domain Electromagnetic (TDEM) high near the historic F2 and Canyon showings. The overlap suggests a significant geological feature, and drilling will test whether it represents a favorable host rock or structural control on mineralization. Drilling will target the continuation of mineralization identified at surface for depth and extent.

In addition, a high-resolution UAV drone magnetic survey will be conducted across the property. This survey, along with mapping and rock geochemical sampling, will provide detailed data on structural features that may influence mineralization and will follow up on anomalous 2024 rock-chip samples that identified up to 10,936 g/t silver . In the northern part of the property, the magnetic survey will also be used to help delineate geology and improve the understanding of how identified gravity anomalies relate to potential mineralized systems.

To further refine exploration targets, a gravity infill survey will be conducted over areas where high gravity anomalies were previously identified. This additional data will improve resolution in key zones and refine additional drill targets.

Figure 1- An oblique view looking at the southern part of the Star River property showing Gravity and TDEM anomaly targets with significant 2024 Gold and Silver samples   .
  Initial drilling will be focused on the F2 zone.

The upcoming drill program, geophysical surveys, sampling program and gravity infill work are designed to…