Sterling Metals Corp. announced the completion of the Deep Orion 3D geophysical survey and report the balance of results from its 2022 drilling on the Sail Pond Silver and Base Metal Project in the Great Northern Peninsula of Newfoundland. Drilling results are from the regional exploration program focused on the North and Central Zones.

Highlights: Orion Survey: Four new exploration targets discovered. Favorable geology mapped to depth of 2 kilometres. Strong anomaly beneath newly discovered Heimdall North Zone and SP-22-064.

Surveyed 1.5 km of the 14 km trend as a test before large-scale application. Permits for summer drilling submitted. Plans to test identified anomalies in coming months.

Airborne survey planned to scan entire property based on drill results. 2022 Regional Exploration Results: Intercepted wide zones of brecciated dolostones showing variably developed polymetallic mineralization along 4 km of strike. Discovery of a new mineralized system at depth, the Central Ridge Zone, which has the potential to be another pearl along the 12 km trend, marking the fourth area of mineralization discovered on the property in two years.

Sail Pond North revealed new pockets of mineralization, including the higher grade to date in the area at 18.55 m downhole in SP-22-066 at 496 g/t AgEq over 0.25 m (259 g/t Ag, 1.44% Cu, 0.27% Pb, 0.26% Zn, 0.39% Sb). Intervals intersected at Sail Pond North appear to be the upper portions of a larger mineralized system, exhibiting similar host geology and mineralization to the top of the Heimdall Zone. Better understanding of the orientation of the structures will provide better targeting in future drill programs. The Deep Orion 3D Swath DCIP and MT Survey employed 3D ground geophysical techniques on a priority area which includes the Heimdall and Heimdall North Zones.

The survey was designed with 200 m spaced lines and readings between lines to generate a 3D interpretation of key structural controls on mineralization and to identify potential high-grade feeder zones as exploration targets. The survey utilized 3 km long lines for deep viewing measuring IP (chargeability) to locate potential sulphide mineralization bodies to 500 m depth, and MT (resistivity) to map favorable host geology to 2 km depth. The deep-looking Orion survey uncovered several new IP anomalies and successfully mapped the favorable anticline geology of the host dolostone unit to 2 km depth.

Cross-cutting north-east trending structures, potentially mineral-bearing, were also identified. In total 1.5 km of the 14 km trend at Sail Pond was surveyed as a test before covering larger sections of the property. The results of this survey have isolated four new exploration targets, including a strong IP anomaly coincident with a resistivity high discovered beneath the new Heimdall North Zone and SP-22-064.

Permits for summer drilling have been submitted, and plans are underway to test these anomalies in the coming months. Additionally, an airborne geophysics survey is planned to scan the entire property based on drill results. Sterling's 2022 drilling program successfully completed 34 new holes for over 7,500 m of drilling at new targets and the Heimdall Zone.

Highlights of the program are the expanded mineralization at Heimdall and newly identified mineralized zone 500 m to the north. The gap between Heimdall and the new zone to the north is virtually wide open and considered very prospective, especially due to the presence of new Orion 3D targets. Targeting for the 2022 program incorporated a detailed structural interpretation by SRK and a comprehensive study by Goldspot which utilized an exploration targeting matrix of 6 geological and geophysical factors which included: presence of silver and copper mineralization at surface, prominent regional north-east trending structures in proximity (as interpreted by SRK), a warp in the argillite contact, distinct breaks in high chargeability anomalies and coincident highs in resistivity.

Today's results come from drillholes testing regional targets along the ~14 km of prospective strike length and focused grab sampling from regional target generation and project enhancement. Across the Sail Pond Project structural complexity is associated with the localization of polymetallic mineralization. The drilling in the Sail Pond North and Central Zone concentrated on locations with similar structural complexities where obliquely converging faults/lineaments intersect the main foliation in the area, often associated with anomalous samples.

The regional targets were successful in intercepting wide zones of brecciated dolostones showing variably developed polymetallic mineralization along ~4 km of strike. The regional target generation and drilling resulted in the discovery of a new mineralized system at depth, the Central Ridge Zone (Central Ridge), which has the potential to be another pearl along the ~12 km trend. Occurring in close proximity to a structural kink or jog, the Central Ridge is characterized by a wide zone of mineralized brecciated dolostone with clots of sulphides and sulfosalts.

The thick veins and massive portions of the system are yet to be discovered, and the area is wide open in all directions. This marks the fourth area of mineralization discovered on the property in two years. In addition, Sail Pond North continued to reveal new pockets of mineralization, including the higher grade to date in the area at 18.55 m downhole in SP-22-066.

The intervals intersected appear to be the upper portions of a larger mineralized system, exhibiting similar host geology and mineralization to the top of the Heimdall Zone. The mineralization at Sail Pond, especially the high-grade veins, is structurally controlled and understanding the orientation of the structures is vital to expanding zones and identifying potential new zones along preferred structural trends. The Company has completed an extensive down hole optical televiewer study to measure the orientation of high-grade veins and other structural features in important drill holes across the property.

This data and the enhanced geological model will play a significant role in the targeting for the next drill programs. The primary host rock for mineralization identified is a thick sequence of highly altered and often brecciated dolostone of the Cambro-Ordovician Saint George Group. Mineralization encountered to date typically consists of tetrahedrite-tennantite, chalcocite, sphalerite, galena, pyrite, and potentially additional sulfosalt minerals. Quartz veining and associated mineralization are ubiquitous throughout the dolostone unit, but included metallic mineralization is best developed in areas of combined brecciation and veining.

The structural evolution and metallogenic sequencing are very complex, and mineralization has been identified in association with a multitude of structural events.