Estrella Resources has achieved a significant operational milestone at its Ira Miri manganese project in Timor-Leste, extracting more than 27,000 tonnes of ore for market appraisal while confirming ultra-high-grade mineralisation across the emerging operation.
Successful Extraction During Wet Season
The successful programme, completed during the challenging wet season, has built a substantial inventory, including a premium high-grade parcel of 4,984 tonnes grading 49.38 per cent manganese. While stockpile grades are impressive, direct sampling from within the pit has revealed even more remarkable results, with in-situ ultra-high-grade material confirmed at up to 60.22 per cent manganese, clearly indicating the project's quality.
Geological Insights and Product Sorting
The company reports that the extraction has materially improved its understanding of the geological system, identifying a structurally complex sequence of folded and boudinaged manganese pods—a term describing ore that has been stretched and segmented into high-grade sausage-shaped lenses. Estrella is now sorting its product lineup by evaluating high, medium, and low-grade stockpiles to meet market demands. Key sizing and yield studies are underway to finalise export specifications, and necessary export and trans-shipment approvals are in progress for first offshore shipments.
Timor-Leste's national regulator has already approved the company's port stockpile site, allowing ore blending before loading onto bulk carriers for prospective off-take partners to conduct detailed assessments.
Exploration Upside and Future Plans
From a geological perspective, mineralisation at Ira Miri remains wide open below the current pit floor and into the walls. Previous induced polarisation surveys have flagged deeper chargeability anomalies that remain untested, offering significant exploration upside. To test this potential, larger geophysical surveys are planned for late May and early June to define follow-up drill targets.
Estrella Resources managing director Chris Daws highlighted the rapid progress: "Ira Miri demonstrates Estrella's first-mover position in Timor-Leste and the company's ability to rapidly advance a manganese discovery from drilling to market appraisal extraction."
Rapid Development Timeline
The pace of development at Ira Miri has been exceptional. Estrella only commenced maiden drilling at the project in May last year, transitioning from a greenfields discovery to bulk extraction in just nine months. The company's first-mover advantage in Timor-Leste has allowed it to establish strong local operating relationships, de-risking the project's logistics chain.
Beyond manganese, Estrella is progressing its Werumata limestone project in Timor-Leste, with resource modelling ongoing for a maiden JORC-compliant resource estimate expected shortly. The company also plans accelerated regional exploration adjacent to Ira Miri, targeting potential gold and copper occurrences alongside additional manganese.
Immediate Focus and Future Licensing
For now, the company's immediate focus remains on direct shipping, ore preparation, and finalising logistics for offshore bulk vessels. Simultaneously, upcoming geophysics and follow-up drilling will provide data to support a future category A mining licence application, unlocking full-scale commercial development.
It has been a whirlwind nine months for Estrella in Timor-Leste—a new mineral frontier that only introduced its modern mining code in 2021—with the company moving from first drill bit to a 27,000-tonne stockpile in less than 12 months. With the first shipment on the horizon and deeper targets yet to be tested, Estrella appears well-positioned as it ramps up from explorer to producer.
