Nordpreciousmetals logo

TSX-V: NTH
OTCQB: CCWOF
FF: 4T9B

CASTLE EAST DISCOVERY

World's Highest Grade Silver Resource

89,853 g/t silver over 0.3m ranks among the richest silver intercepts ever drilled. Initial resource of 7.56 million ounces at 8,582 g/t established from two vein sections. Ongoing 60,000m drill program targeting 30-100 million ounce potential.

NI 43-101 TECHNICAL REPORT (MAY 2020)

Inferred Resource: 7.56M oz @ 8,582 g/t Ag

Hero

TECHNICAL MILESTONES

60,000m Drilling

43,000m completed. Multiple new vein structures identified.

Bonanza Grades

89,853 g/t, 70,380 g/t, 50,583 g/t silver. 2.24% cobalt intercepts.

Environmental Baseline

Multi-year data collection complete for permitting.

Ramp Engineering

Design to 400m level complete. Awaiting updated resource.

Geological Modeling

3D vein model with EarthLabs AI targeting.

Metallurgical Testing

Gravity recovery validated. Re-2Ox testing underway.

Meters Drilled

Vein Structures

g/t Silver (Peak)

% Cobalt (Max)

DEVELOPMENT PLANNING

Underground Access to 400m Level

Planned ramp provides platform for resource expansion drilling and bulk sampling. Engineering complete. Environmental studies submitted. Construction pending resource update and project financing.

Ramp
History

DISCOVERY CONTEXT

First major discovery in camp since 1970s

Located 2km east of Castle Mine in unexplored gap. Historic producers Castle, Capitol, O'Brien combined for 80 million ounces from this structural trend.

GEOLOGICAL MODEL

Multiple high-grade panels at 400m depth

Mineralization occurs mid-level in Nipissing diabase, dipping east from historic mines. Recent shallow intercept of 4,000+ g/t at 50m suggests multiple mineralized horizons.

Geology

The vein structures at Castle East show remarkable continuity. We're seeing the same high grades over significant distances, which is unusual for the camp and suggests a major mineralizing event.

Matt Halliday

TECHNICAL ADVISOR, P. GEO.

Resource Expansion Potential

Current resource from only two vein sections (1A and 1B) of Robinson Zone. Eight total structures identified. 2km strike length between Castle East and Castle Mine remains largely untested.

Silver

Polymetallic Credits

Gold values up to 22 g/t intersected in both diabase and overlying Archean rocks. Cobalt grades to 2.24%. Nickel and copper provide additional credits.

Gold

Resource Parameters

258 g/t AgEq CUTOFF (3% NSR)

Mineral resources are not mineral reserves. Economic viability not demonstrated.

Rachidi, M. 2020, NI 43-101 Technical Report, effective May 28, 2020.

Discovery Hole CS-19-08

Drill core

Initial discovery at 427m vertical depth: 50,583 g/t Ag over 0.6m. Follow-up wedge holes confirmed continuity with 70,380 g/t and record 89,853 g/t intercepts.

Resource Definition Drilling

Drill core

Systematic 25-50m spacing established 7.56M oz in 27,400 tonnes. Average grade of 8,582 g/t (250 oz/ton) ranks among world's highest silver resources.