SHUKA MINERALS PLC - Kabwe Drilling (KBDD05) deep hole confirms ore body open at depth
What this filing means
Shuka Minerals reports KBDD05 intersected 38.90% Zn over 3.50m at approximately 338–341m depth at the Kabwe No. 2 ore body, with the orebody confirmed open at depth and a step-out hole now commenced at a separate 'Speaks' target. The share had already risen over 30% in the 20 days before this announcement, and this is the fifth drill-hole result in the current campaign — the market has largely rehearsed this narrative, and the headline grade awaits JORC/NI 43-101 laboratory verification, not just the portable XRF used in the field.
Shuka hit high-grade zinc underground at Kabwe, which is geologically encouraging. But the share had already risen sharply over the prior month on four earlier drill hits, and these results come from a portable XRF machine rather than an accredited laboratory — the grades still need formal confirmation. Add no cost or economics data, and this reads as more confirmation of a drilling programme already in the price than a fresh catalyst.
Bull case
- KBDD05 intersected 38.90% Zn over 3.50m (A1), markedly above the 11.4% Zn grade in the 3.1MT No. 2 resource estimate (A2), pointing to a higher-grade zone at depth.
- The orebody remains open at depth, with management now confident of drilling to 700m+ to test the deepest reaches of the previously developed ore body (A7).
- A step-out hole has begun at the previously unexploited 'Speaks' orebody ~1km from Pit 2 (A5), adding new exploration optionality beyond the No. 2 focus area.
- The 2026 exploration programme targets a 50% increase in the existing resource (A8), giving line-of-sight to a material re-rating on drilling success.
- A peak 17.5% Pb reading against a 0.3%-1.8% background (A3) hints at a possible increase in lead mineralisation with depth, complementing the zinc story.
Bear case
- Headline 38.90% Zn grade is from a portable XRF only and awaits JORC/NI 43-101 lab verification, leaving the central economic claim unconfirmed.
- Filing contains no CAPEX, opex, metallurgical recovery, or cut-off-grade data to evaluate the 50% resource growth target — only geology, no economics.
- Pinpoint XRF readings behind the 3.50m headline range from 6.70% to 68.6% Zn, meaning the arithmetic average masks extreme internal variability within a very short interval.
- Karst and a historic mining cavity forced a 4°–6° hole deviation, signalling structurally complex, partially depleted ground that complicates resource continuity.
AI-generated summary by SENS-AI, based on the original JSE SENS filing.
SENS-AI conclusion
A working drill programme delivering on its stated objective — the No. 2 orebody is open at depth and the 38.90% Zn intercept is materially above the 11.4% Zn resource grade. That is geologically meaningful. However, the share had run up 30.3% into the print on four prior drill successes, the XRF readings are pending JORC/NI 43-101 laboratory verification, and there is no economics data (CAPEX, opex, recovery, cut-off grade) to assess whether the intersection is commercially material. The filing advances the geological story but does not move the investment case forward in a way the market was not already expecting. So what: the geological thesis is intact, but the market needs a verified resource upgrade and a clearer economic picture — not more field XRF results — to re-rate the share.
The next market-moving disclosure will be a JORC/NI 43-101 compliant resource update and, ultimately, a scoping or pre-feasibility study with economics.
Evidence from the filing
KBDD05 intersected 38.90% Zn over 3.50m (A1), markedly above the 11.4% Zn grade in the 3.1MT No. 2 resource estimate (A2), pointing to a higher-grade zone at depth.
“KBDD05 returned 38.90% Zn over 3.50 m from 338.00.10 to 341.50 m (down hole), based on an arithmetic average of 10 individual portable XRF pinpoint readings through the defined zone at a typical regular data spacing of 3 readings per meter of whole core. Pinpoint readings over the entire interval ranged from 6.70% – 68.6% zinc.”
The orebody remains open at depth, with management now confident of drilling to 700m+ to test the deepest reaches of the previously developed ore body (A7).
“We are now confident we can drill to 700m + to confirm the deepest reaches of the previously developed ore body.”
A step-out hole has begun at the previously unexploited 'Speaks' orebody ~1km from Pit 2 (A5), adding new exploration optionality beyond the No. 2 focus area.
“The Company has commenced a sixth hole to intersect a different, previously unexploited orebody in the "Speaks" approximately 1 kilometre ("km") from the Pit 2 area where we have been focussing our studies to date. The anticipated depth of drill hole 6 will be at 250 m - 300 m.”
The 2026 exploration programme targets a 50% increase in the existing resource (A8), giving line-of-sight to a material re-rating on drilling success.
“the Company's objectives for its 2026 exploration programme aiming to increase the existing resource by 50%, subject to the results of the drilling programme”
A peak 17.5% Pb reading against a 0.3%-1.8% background (A3) hints at a possible increase in lead mineralisation with depth, complementing the zinc story.
“This interval includes one peak reading of 17.5% Lead ("Pb") in otherwise anomalous values (0.3% – 1.8% Pb) perhaps indicating an increase in Pb mineralisation with depth.”
Headline 38.90% Zn grade is from a portable XRF only and awaits JORC/NI 43-101 lab verification, leaving the central economic claim unconfirmed.
“These assays were taken with a calibrated XRF machine and will be verified in due course with JORC/NI 43 101 laboratory analysis and testing.”
Filing contains no CAPEX, opex, metallurgical recovery, or cut-off-grade data to evaluate the 50% resource growth target — only geology, no economics.
“the Company's objectives for its 2026 exploration programme aiming to increase the existing resource by 50%, subject to the results of the drilling programme”
Pinpoint XRF readings behind the 3.50m headline range from 6.70% to 68.6% Zn, meaning the arithmetic average masks extreme internal variability within a very short interval.
“KBDD05 returned 38.90% Zn over 3.50 m from 338.00.10 to 341.50 m (down hole), based on an arithmetic average of 10 individual portable XRF pinpoint readings through the defined zone at a typical regular data spacing of 3 readings per meter of whole core. Pinpoint readings over the entire interval ranged from 6.70% – 68.6% zinc.”
Karst and a historic mining cavity forced a 4°–6° hole deviation, signalling structurally complex, partially depleted ground that complicates resource continuity.
“KBDD05 returned 38.90% Zn over 3.50 m from 338.00.10 to 341.50 m (down hole), based on an arithmetic average of 10 individual portable XRF pinpoint readings through the defined zone at a typical regular data spacing of 3 readings per meter of whole core. Pinpoint readings over the entire interval ranged from 6.70% – 68.6% zinc.”
More on Shuka Minerals Plc
Related filings
More from SKA
- SHUKA MINERALS PLC - Further Re Subscription
- SHUKA MINERALS PLC - Assignment of GBP400,000 of GMI Loan to RAB Capital
- SHUKA MINERALS PLC - Conversion of Loan & Issue of Equity
- SHUKA MINERALS PLC - Assignment of GBP800,000 of GMI Loan to Strategic Investors
- SHUKA MINERALS PLC - Kabwe Drilling (KBDD11) The New Ore body identified at Kabwe returns a max grade of 70% Zn