Codrus Minerals Spots Possible Moly-Copper at Peru Project With Assays Due Late October
Key Takeaways
- Codrus Minerals' first Tiquihua update reports visually estimated molybdenite of 5% to 8% in skarn samples 5412–5418, but these are not assay grades.
- Laboratory assays on the rock-chip samples are due in the second half of October and are the near-term catalyst that will guide further exploration.
- The 100-hectare concession in Peru's Ayacucho region shows roughly 60 tonnes of historical artisanal extraction, a visual estimate with no official reports.
- No drilling has been done and no resource has been estimated, and the intrusive source of the mineralising fluids is still unmapped.
- Molybdenum adds potential polymetallic optionality alongside the Copperhole Creek copper project in Queensland, brought in through the EdgeMet acquisition.
Tiquihua fieldwork underway, assays due second half of October
Codrus Minerals (ASX:CDR) has provided its first exploration update on the Tiquihua Project in Peru’s Ayacucho region, following completion of the acquisition (refer to ASX announcements dated 1 October 2026 and 3 August 2026). The update covers early molybdenum-copper exploration, not a result.
The Project comprises a 100-hectare mining concession about 1km from the town of Tiquihua, in Peru’s Western Cordillera. It has a history of small-scale artisanal mining and is considered prospective for molybdenum, copper and other critical minerals.
Rock-chip samples collected from underground workings have been submitted for laboratory assay, with results expected in the second half of October. For investors, those assays are the near-term catalyst, and the Company says they will be used to guide further exploration at the Project.
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What the initial fieldwork found
Historical adits and preliminary observations
Initial fieldwork focused on understanding the historical underground workings. Several historical adits (horizontal mine tunnels) were identified, although vegetation growth and overburden (loose soil and rock cover) restricted access and observation in parts of the Project area.
Preliminary visual observations of samples collected from areas away from the main workings suggest the potential presence of copper and molybdenum mineralisation. These observations remain subject to laboratory confirmation.
The Company stressed that visual estimates of mineral abundance should never be considered a proxy or substitute for laboratory analyses. The rock-chip samples are selected surface samples, not representative of the average grade of mineralisation, and should not be interpreted as indicative of subsurface grade or continuity.
The table below summarises the visually estimated observations from Appendix 1. These are not grades.
| Sample IDs | Lithology | Visual estimate | Mineral occurrence |
|---|---|---|---|
| 5404–5410 | Skarn | Molybdenite visually estimated at ~3%; probable ferrimolybdite ~5% | Disseminated molybdenite and probable ferrimolybdite, with minor jarosite and malachite, within an oxidised, bedding-parallel mineralised zone interpreted as a manto |
| 5412–5418 | Skarn | Visually estimated 5% – 8% disseminated molybdenite | Granular, mixed intrusive material within an oxidised, bedding-concordant manto |
| 5411 | Skarn | None stated | Aphanitic dark-grey manto with copper-oxide coatings; very hard, mineral identification uncertain |
Sample 5409 is a duplicate of 5408, and 5403 is a blank. No assay data has been reported.
Skarn geology and historical production
A skarn is a rock formed when hot fluids react with limestone. Reconnaissance observations from previous underground workings indicate the following:
- Molybdenum-copper skarn occurs as mantos (bedding-parallel mineralised zones) striking approximately northerly.
- Disseminated molybdenite hosted in andradite-rich garnet skarn within marbleised limestone.
- Near-surface oxidation has produced ferrimolybdite and secondary copper minerals.
Preliminary visual estimations of the historical workings void suggest a historical extraction of approximately 60 tonnes of molybdenite-bearing rock from this manto. The announcement notes no official reports are available, so this is a visual estimate only.
Why molybdenum and copper matter for Codrus
Molybdenum is a critical industrial metal used in high-strength steel alloys, enhancing strength, corrosion resistance and performance at elevated temperatures. Applications include aerospace, defence, energy and advanced technologies, including semiconductors.
The deposits are interpreted as distal calcic exoskarns formed by fluids from a concealed intrusion, possibly granodioritic. Permeable bedding contacts helped concentrate mineralisation in the mantos, which is why they are the focus of the work.
On the investment angle, the Company says the identification of molybdenum mineralisation provides additional upside and introduces a potential polymetallic optionality alongside its other suite of assets. The announcement makes no claim about economic significance, and that matters: this is an early signal to watch, not a proven outcome.
The concession, Tiquihua America 001, is held through a mining assignment and option to purchase agreement by entities owned by Codrus Minerals Ltd.
The EdgeMet acquisition brought Tiquihua into the Codrus portfolio alongside the Copperhole Creek copper project in Queensland, with consideration split between shares, performance rights and deferred milestone-linked cash payments.
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Next steps and what to watch
The announcement sets out the follow-up programme as follows:
- Laboratory assay results are expected in the second half of October, subject to laboratory turnaround times.
- A follow-up field programme is planned, including preliminary geological mapping across the wider Project area.
- The scope and priorities of the programme will be guided by the assay results and observations from the initial fieldwork.
The intrusive source of the mineralising fluids is yet to be clearly identified or mapped, and will be part of future work.
Formal exploration to date has been limited, and the Company describes this as a first-pass assessment. No drilling has been undertaken and no resource has been estimated.
The next key milestone is the assay results. Until they arrive, the visual observations remain preliminary and unconfirmed.
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