Exploration target30 Mar 2026 19:26
tertiary’s mushima north a1 target is an interesting early‑stage discovery with scale potential, but it is still very high risk and many steps away from demonstrating real economic value for equity investors.
the a1 exploration target is 15–30 mt at 40–60 g/t ageq, implying an upper conceptual end of ~58 moz ageq in situ.
mineralisation is a flat‑lying, near‑surface oxide/supergene tabular body, roughly 500 m x 300 m and up to 75 m thick, open to the northwest, southwest and at depth.
it is polymetallic: silver, copper and zinc (plus accessory critical metals in places), but the economics are framed around a silver‑equivalent grade.
metallurgy is a complete unknown: no testwork has been done; ageq assumes full recoveries and uses aggressive metal prices (ag 75 usd/oz, cu 5.8 usd/lb, zn 1.45 usd/lb), which may overstate the economic significance of the quoted grades.
the system is currently interpreted as secondary supergene enrichment with an undefined primary source: if the feeder zone at depth is not economically mineralised, the oxide blanket may have limited tonnage/grade the exploration target is an estimation of this.
the system is open in multiple directions and at depth, and there are several other untested geochemical/geophysical targets (a2, b1–b3, c2) within a 12 km radius, giving regional upside if the model is proved.
the project is in a known iocg/sed‑hosted cu‑ag district, 20–28 km from the historic, high‑grade kalengwa mine (11% cu ore historically), which is under re‑development and expected to produce ~15 kt cu per year, indicating an established mining corridor and precedent infrastructure/permitting path.
drilling density is still reconnaissance level; the “****geneity” and continuity assumed in the block model could deteriorate with tighter spacing, reducing tonnes/grade relative to the current conceptual envelope.
if both infill drilling and metallurgy are clearly positive a1 becomes a legitimate development‑stage asset with a defined oxide ag‑cu‑zn resource and a line of sight to scoping study economics.
the equity case shifts from “maybe there is something here” to “there is definitely a resource here; the key question is how big and how economic.”
mushima north is potentially a material discovery for a small aim explorer, giving genuine optionality if a 20–30 mt oxide resource at robust ageq grade can be defined and metallurgically proven.
my guess is that we stay under the radar for a little longer.
once they start reporting on the first few drills we'll have an idea of the continuity quite quickly. the drilling to date has already shown good levels of continuity- the infill will just close the gaps and boost certainty to a levels required to begin resource definition.
i'm not sure the market cares that much right now but it seems that the boss is pretty keen judging by his interview. interesting times.
i look forward to the first drill results.
gla/ dyor