
Estrella bolsters portfolio with landmark Timor licensing approval
Estrella Resources has notched yet another Timor-Leste landmark achievement, announcing the first successful conversion of permits into exploration and evaluation licenses under the mineral-rich country's new mining laws.
The company's four converted permits more than double its exploration and evaluation footprint from 121.5km² to an impressive 268.7km², unlocking prospective geology and high-grade manganese targets to be drill tested for the very first time.
The newly minted licenses will replace old reconnaissance permits, enabling Estrella to deploy ground-disturbing methods including all-important maiden drilling campaigns that are set to follow the receipt of the nation's first mineral exploration rig later this month.
The news comes at a time when Estrella has unearthed a surprising contender for a new mineral discovery – the presence of clean, fossil-rich limestones sitting above its manganese horizons.
It follows some eye-catching early-stage assay results throughout last year, that flagged the serious mineral rich nature of Timor Leste, formally known as East Timor.
Some rock samples tabled by Estrella showed high-grade manganese up to a serious 58.2 per cent Mn across the featured 'Noni' rock formations.
Estrella says its new licenses will be valid for four years with a potential six-year extension option as part of the existing joint venture with state-owned Murak Rai Timor, who is free-carried in the project until feasibility study completion.
The northern and western extensions of the Sica-Lalena manganese trend remain the company's core focus where significant tertiary style manganese has already been identified. Estrella is now busy hunting for substantial secondary supergene deposits akin to those at its flagship Sica and Ira Miri prospects.
During mapping surveys Estrella's geologists noted abundant clean limestone above its targeted Noni formation, prompting its inclusion in all four licenses. Assays revealed astonishingly high calcium carbonate levels up to 93.4 per cent, with low impurities and high industrial application potential. The proximity of these limestones to coastal ports only enhance the company's belief in its economic viability.
Conveniently, Estrella's planned maiden drill testing for manganese will intersect the overlying limestone horizons, securing extra bang for the company's buck should a bi-product scenario evolve.
Estrella says it is wasting no time following its license conversions, with plans to test its staggeringly high-grade manganese targets with reverse circulation and diamond drilling once a rig arrives later this month.
Drilling will coincide with the end of Timor's wet season, with environmental surveys for the untouched Ira Miri, Sica and Lalena drill targets having all been completed.
The company says applications for environmental clearances and access tracks are being drafted for the new licenses, while mapping and limestone sampling continue.
Estrella is not only exploiting its first mover advantage in the newly 'open for mining' Timor-Leste, it is also doubling down on an expected boom in manganese demand as lithium ferro phosphate (LFP) batteries used in electric vehicles move to the higher performance lithium manganese ferro phosphate (LMFP) chemistry.
As global demand for manganese surges and limestone emerges as a low-cost, high-margin bi-product, Estrella moves closer and closer to the first ever drill test of untouched Timor-Leste's mineral abundance just might get interesting.
Is your ASX-listed company doing something interesting? Contact:
matt.birney@wanews.com.au

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West Australian
03-06-2025
- West Australian
Estrella hits massive manganese oxides in Timor-Leste debut
Estrella Resources has made a landmark discovery in its maiden exploration program in Timor-Leste, intersecting a thick 6.45-metre zone of massive manganese oxides just 1.35m below surface at its Ira Miri prospect. In what marks the first modern metallic minerals drillhole sunk in the country, Estrella's initial diamond hole confirmed high-grade manganese mineralisation right from the outset. The mineralisation is still open at 7.8m depth. The discovery comes hot on the heels of an original outcrop found six months ago and just 3m away. Rock chip samples from the surface discovery returned jaw-dropping assays of up to 58.6 per cent manganese. The latest X-ray fluorescence readings from the drill core have now backed up the earlier numbers. They average an impressive 40.1 per cent manganese over the 6.45m interval and confirm more high-grade mineralisation beneath surface. The drill hole ended early because of intermittent core recovery and a scheduled roster break under Timor-Leste mining laws. Estrella will use the downtime to mobilise a more powerful diamond rig in the next two weeks, capable of punching deeper into the friable manganese-rich zones. Core has now been removed for a presentation in June at the International Manganese Institute's conference in Tokyo. Notably, a trench dug just 8m southeast of the drill hole also encountered massive manganese oxides starting 0.7m below surface, despite the area showing no visible surface mineralisation. The find suggests the potential for widespread, near-surface mineralisation hidden under shallow cover throughout the area. Estrella says the rapid turnaround to drilling is a strong sign of the in-country co-operation. Its joint venture partner, state-owned Murak Rai Timor has been instrumental in fast-tracking the campaign. Murak Rai Timor's managing director Jose Goncalves also welcomed the result, calling it a strong endorsement of the joint venture's strategy and a powerful first step in uncovering Timor-Leste's critical minerals potential. The current drilling program is being run by Darwin-based CoreSearch, which also impressively mobilised both diamond and reverse circulation drill rigs into Timor-Leste's remote Lautém district in record time. Since Timor-Leste is still an underexplored region, Estrella says it holds a substantial first mover advantage, which could crack open a treasure trove of untapped targets and turn the region into something special. Estrella is also eyeing the country's broader mineral potential, with a significant high-grade limestone deposit sitting directly above its manganese horizon. Two weeks ago, the company struck a major deal to export up to 500 million tonnes of premium, coral-rich limestone over five years to meet booming industrial demand in South East Asia. The limestone, part of the Baucau Formation, is high-purity calcite with minimal impurities, making it ideal for cement, glass, agriculture and nickel processing. It also sits straight above the manganese targets, allowing for streamlined dual resource exploration. A major 20,000m drilling blitz is now on the cards, combining 10,000m of reverse circulation drilling and 3000m of deeper diamond drilling in the first phase, followed by a further 10,000m of reverse circulation drilling after a geological review. With Timor-Leste aiming to make its mark in the global supply chain for industrial metals, Estrella's Ira Miri manganese find could be the opening salvo of something much bigger. Is your ASX-listed company doing something interesting? Contact:


West Australian
29-05-2025
- West Australian
Estrella makes history with manganese drill program in Timor-Leste
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West Australian
21-05-2025
- West Australian
Estrella Resources to use Timor-Leste limestone to help Indonesian nickel industry lift environmental game
The Indonesian nickel industry's rise might have stymied Estrella Resources' efforts in the Goldfields — but now the company will attempt to use its pivot to Timor-Leste to help reduce the damaging environmental impact of nickel refining in Indonesia. Estrella will do this by selling limestone from its concessions in Timor-Leste to 'well-established' Indonesian mining services company PT Raka Energi Mandri, which will seek to on-sell the product in the huge South-East Asian country. The glut of cheaply produced nickel from Indonesia has sunk the WA industry, with Estrella — which has the Boyd-Carr project north of Kalgoorlie-Boulder on care and maintenance — among the many companies seeking other opportunities. In Estrella's case, it became the first company to acquire mineral exploration licences in the small nation of Timor-Leste to the north of Australia following that country's inaugural minerals tender in 2023. Estrella is looking for manganese — but says it has also found limestone overlaying and surrounding the manganese mineralisation. And, says the company's managing director Chris Daws, limestone has the ability to improve the environmental impact of nickel refining, primarily as an acid neutralisation agent. Estrella on Wednesday announced its 'master agreement' with PT Raka Energi Mandri. The Australian company said the agreement provided the framework for Estrella and Raka Energi Mandri to negotiate and enter into an offtake agreement to more fully document the terms upon which REM would have the exclusive right to buy limestone, including the agreed annual sale price. The partnership would target sales of up to 500 million dry metric tonnes of limestone over five years from the first shipment. 'REM will be entitled to unlisted share options exercisable at $0.05 each as consideration for successfully facilitating limestone sales over this five-year period,' Estrella said. 'Estrella will — subject to shareholder approval — grant REM one unlisted share option exercisable at $0.05 for each tonne of limestone that is ordered and paid, representing a total of up to 500 million unlisted share options exercisable at $0.05 each in the event REM achieves the sales target.' Estrella said all this was subject to it achieving several development milestones, including a JORC-compliant resource and completion of a scoping study by the final quarter of this year. Mr Daws spruiked the agreement as a 'transformational moment' for Estrella. '(It is) a major step forward in building a long-term commercial pathway from limestone production from our Timor-Leste projects, alongside our existing manganese exploration,' he said. 'Partnering with a well-connected local group like REM gives us a strong advantage in accessing the South-East Asian market. 'We anticipate this market to be advantageous for a number of years, given the substantial rise of nickel mining in Indonesia and limestone's ability to improve the environmental impact of refining, primarily as an acid neutralisation agent. 'The structure of this deal ensures we're aligned on performance — REM will share in the upside if they hit our sales targets, and we'll unlock real value for shareholders along the way. 'This agreement positions Estrella to become a leading supplier of high-quality limestone into a growing market, and we look forward to building a strong, long-term relationship with REM as we move toward first shipment and beyond.' REM director Gregory Dhana N said the company looked forward to working with Estrella to provide a solution to help clean up the mining industry and the environmental problems that had arisen as a result of the huge demand for minerals used in the electric vehicle revolution. 'We also see many other opportunities that we can work collectively together with Estrella, Timor-Leste and Indonesia to provide a cleaner, more environmentally friendly mining industry and better future for our children,' he said.