Canterra Minerals Expands Lundberg Footprint with 57.15m of 0.57% CuEq and Confirms High Grade lens at Two Level target with 4.34% CuEq over 1.65m at Buchans Project, Newfoundland

Original announcement by tmx on Jun 3, 2026

Bullish

Company: Canterra Minerals Corporation
Ticker: CTM
Exchange: TSX
Region: Newfoundland
Primary commodity: Copper
Secondary commodities: Zinc, Lead, Silver, Gold
Document categories: Drill results
Extracted: 2026-08-23 06:31:44 UTC

Minestarters Atlas analysis

Summary

Canterra Minerals announced drill results from its Buchans Project in Newfoundland, highlighted by a high-grade intercept of 4.34% CuEq over 1.65 meters at the Two Level target and a broad 57.15-meter interval of 0.57% CuEq at the Lundberg deposit. These results confirm a high-grade sulphide lens and expand the near-surface mineralized footprint, supporting the potential for resource expansion. The company also reported on first-pass drilling at the West Clementine target, where some holes were abandoned or returned no significant values, though one target remains to be tested.

Reasoning: Canterra Minerals reported strong polymetallic drill results from its Buchans Project, including a high-grade intercept at the Two Level target and broad near-surface mineralization at the Lundberg deposit, expanding the known footprint. The results confirm continuity and potential for resource expansion, supported by robust QA/QC and transparent metal equivalent calculations. However, some holes yielded no significant values or were abandoned.

Positive factors

High-grade polymetallic intercept at Two Level target (4.34% CuEq over 1.65m)
Broad near-surface mineralization at Lundberg deposit (57.15m of 0.57% CuEq)
Expansion of known mineralization footprint and confirmation of continuity
Comprehensive QA/QC protocols disclosed, including certified lab and QP sign-off
Metal equivalent assumptions fully disclosed

Negative factors

Several holes returned no significant values or were abandoned before target depth
No true width reported for individual intercepts, only a general estimate

Low confidence — this extraction should be reviewed alongside the original source.

Facts used in scoring: 105

Classification and evidence

Bonanza Interceptpositive

Exceptionally high-grade zone, well above the deposit-type norm.

Why it applies: The intercept of 4.34% CuEq over 1.65m in H-26-3563 is exceptionally high-grade for a VMS deposit.

Evidence · table

“4.34”

Context: 1.65

True Width Disclosedpositive

Actual thickness perpendicular to structure is stated, not just downhole length.

Why it applies: The document states that 'True widths estimated to be ~80-90% of reported core lengths'.

Evidence · text

“True widths estimated to be ~80-90% of reported core lengths.”

Step-Out Extensionpositive

Mineralization extended beyond the previously known limit.

Why it applies: Hole H-26-3563 extended Lundberg stockwork mineralization below the existing pit shell, and the company aims for 'near-surface extensions of the Lundberg stockwork resource'.

Evidence · text

“The hole also extended Lundberg stockwork mineralization below the existing pit shell”

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: The release details QA/QC protocols including standards, blanks, duplicates, and independent check assays.

Evidence · text

“Core and rock samples, including standards, blanks and duplicates, were submitted to Eastern Analytical Ltd. in Springdale, Newfoundland for preparation and analyses.”

Compositing Transparentpositive

Cut-off grade and internal dilution rules are clearly stated for reported intervals.

Why it applies: Metal equivalent calculations are fully disclosed with specific recoveries and metal prices.

Evidence · text

“Copper Equivalent % = Cu% + ((Pb% * 22.046 * Pb Rec.* Pb price) + (Zn% * 22.046 * Zn Rec. * Zn price) + (Ag g/t/31.10348 * Ag Rec. * Ag price) + (Au g/t/31.10348 * Au Rec. * Au Price))/(Cu Price * 22.046 * Cu Rec.)). Metal recoveries (Rec.) to concentrate are 90.41% Zn, 91.32% Pb, 91.14% Cu, 32.12% Au & 72.87% Ag based on “Centralized Milling of Newfoundland Base Metal Deposits - Bench Scale DMS and Flotation Test Program” (Thibault & Associates Inc., 2017). Prices used are Cu 6.0183 $US/lb, Pb 0.8951 $US/lb, Zn 1.5403 $US/lb, Ag 76.75 $US/oz, Au 4680.90 $US/oz as of May 6, 2026.”

Infill Drillingneutral

Confirmatory drilling to raise resource confidence, not new discovery.

Why it applies: Hole H-26-3561 successfully infilled a gap in the northeastern Lundberg resource area.

Evidence · text

“Hole H-26-3561 returned 57.15m of 0.57% CuEq, including 11m of 1.32% CuEq , successfully infilling a gap in the northeastern Lundberg resource area where mineralization occurs near surface.”

No Significant Valuesnegative · Story-specific tag