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The following is a round-up of updates by London-listed companies, issued on Thursday and Friday and not separately reported by Alliance News: ---------- Nativo Resources PLC - focused on gold mining and processing in Peru - Hails ‘exceptional’ gold assay results from the Bonanza gold mine in Peru. The data is ‘further confirmation of bonanza-grade mineralisation’. ‘Importantly, these high-grade results are consistent with our geological model of structurally controlled ore shoots and align closely with both historical and recent underground sampling. As we advance development, our focus remains on selectively targeting these high-grade zones to maximise early production value while continuing to build a comprehensive understanding of the system across the Tesoro concession,’ Chief Executive Officer Stephen Birrell comments. ---------- Mendell Helium PLC - helium producer - Reports Ross twin well in Fort Dodge, Kansas reaches total depth of 5,571 feet. ‘Preparations are now underway for completion and perforation of the Rost Twin, with work expected to commence in the next 10 days,’ it adds. On Friday, it says it receives a non-binding proposal with a ‘leading helium producer’ for the installation of equipment to recover and sell helium at the Rost 1-26 well, as well as the Rost twin well. ‘The facilty would support production from Rost and the Rost Twin,’ the company says. The facility is being designed at 1,000 thousand cubic feet per day of raw gas with 5% helium content. It adds: ‘The facility could be expanded to accommodate future growth from M3 Helium wells in the Fort Dodge region.’ ---------- Great Southern Copper PLC - Chile-focused copper, gold and silver explorer - Says all 15 exploration channel samples at Monolith target host copper-gold mineralisation. ‘These exciting results from the Monolith target provide further compelling evidence that the high-grade copper-silver mineralisation identified in drilling at Mostaza now extends across a much broader system at Cerro Negro,’ CEO Sam Garrett says. GSC says rock chip assay grades range up to 1.5% copper and 95.8 grammes per tonne of gold. It notes ‘copper and silver grades depleted due to surface weathering and leaching’. ---------- Georgina Energy PLC - London-based onshore helium and hydrogen explorer - Executes letter awarding Ensign Australia Pty Ltd a contract for the proposed drilling programme at Hussar EP513. ‘The final terms remain under negotiation and will be finalised with an agreed and executed contract for the supply of an Ensign 970 drill rig for the Hussar prospect re-entry well in EP513,’ Georgina says. ---------- Sovereign Metals Ltd - developing Kasiya rutile-graphite project in Malawi - Reports results from a definitive feasibility study at Kasiya. The study shows a pretax net present value at $2.2 billion. It forecast annual earnings before interest, tax, depreciation and amortisation at the asset of $476 million. ‘The completion of this DFS marks a defining milestone for Kasiya and for the global titanium and graphite supply chains. To deliver a DFS of this quality, depth and confidence, rarely achieved by a pre-production company, reflects the calibre of partnerships that Sovereign has assembled around this project: Rio Tinto’s technical expertise, alignment with IFC Performance Standards under our collaboration agreement, and offtake interest driven by US and Japanese supply chain security priorities,’ Sovereign Metals says. ‘The successful completion of large-scale field trials, combined with the expertise of our experienced owner’s team and the technical support provided by Rio Tinto, reinforces Kasiya’s potential to be a long-life, low-cost, and reliable source of two critical and globally strategic minerals. Kasiya is not simply a mining project - it is a globally strategic asset.’ ---------- Quantum Helium Ltd - targets helium, hydrogen and hydrocarbons in the US and Australia - Reports that an extended production test programme at the Sagebrush-1 well in Colarado is progressing. ‘Over the past week, the Company has successfully completed key preparatory and completion activities, currently completing cementing operations across the currently producing Ismay zone, pressure testing of casing, and drill-out of cement and bridge plug. These works are essential to ensure well integrity and optimise conditions ahead of flowing the primary target interval,’ Quantum Helium says. ‘The next phase of operations will focus on the perforation and testing of the Lower Leadville formation.’ ---------- Copyright 2026 Alliance News Ltd. All Rights Reserved.
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