On 25,June,Premier African Minerals Limited ("Premier" or the "Company") has provided an update on the optimisation progress of the upgraded flotation plant at the Zulu Lithium and Tantalum Project ("Zulu"), as well as on ongoing discussions regarding the extension of the Long Stop Date under the Company's prepayment and offtake arrangements.
Managing Director Graham Hill commented that the initial results from the upgraded flotation circuit are very encouraging and represent the most positive operating performance seen from the plant to date. Although commissioning was cut short due to the exhaustion of available ore feed, the circuit demonstrated a significant improvement in concentrate quality and overall operating stability compared with the previous configuration. The immediate priority is to ensure sufficient ore is available on the ROM pad to support continuous operation, as flotation optimisation requires sustained operation over an extended period. Establishing an adequate stockpile before recommencing commissioning activities is considered the most efficient approach. The objective is to operate the plant continuously for approximately 30 days, which should provide the data and operating experience required to fully optimise the circuit and assess its long‑term performance. In parallel, the Company is engaging constructively with Canmax regarding a further extension of the Long Stop Date. Discussions are positive and Canmax is currently reviewing the latest operational data generated during commissioning.
Operational Performance
Initial commissioning of the upgraded flotation circuit has demonstrated encouraging performance improvements. Based on internal laboratory analyses conducted during commissioning, the upgraded circuit achieved rapid froth formation following start‑up and produced concentrate grades materially exceeding those previously achieved. Internal assay results recorded sample concentrate grades exceeding 5.0% Li₂O, with peak sample grades of up to 5.58% Li₂O. These results are preliminary in nature and should not be regarded as independently verified.
The commissioning programme was curtailed by the exhaustion of available ore feed, preventing the plant from undergoing the extended period of continuous operation typically required to fully optimise and stabilise the flotation circuit. The limited ore availability reflects the Company's current financial position and the associated constraints on mining activities at Zulu, with operations continuing on a reduced scale due to insufficient resources to mobilise a large‑scale mining contractor. Nevertheless, the Board believes that the encouraging commissioning results achieved to date provide a strong platform for the next phase of optimisation work and anticipates that, subject to continued operational progress and stakeholder engagement, the Company will be better positioned to secure the resources necessary to support the mobilisation of a larger‑scale mining contractor capable of providing sufficient ore for sustained plant operations.
The improved performance and throughput achieved during commissioning resulted in substantially all of the approximately 6,000 tonnes of ore made available for commissioning and optimisation activities being processed. As a result, additional ore will need to be mined and stockpiled before extended optimisation activities can recommence. Further optimisation, continuous operation and independent verification, where appropriate, will be required before the Company can fully assess the performance and operational capability of the upgraded flotation circuit.
Regarding the handling of concentrate produced during commissioning and test work, the Company is currently evaluating options. Subject to obtaining any necessary approvals, including the consent of Canmax where required, and compliance with all applicable regulatory and contractual obligations, the Company may seek to market and sell certain quantities of concentrate produced during the commissioning process in country. No assurance can be given that any such sales will occur or as to the timing or terms of any such transactions.
ROM Stockpile and Ongoing Optimisation Programme
The improved performance of the upgraded flotation circuit resulted in the processing of substantially all of the approximately 6,000 tonnes of ore that had been made available for commissioning and optimisation activities. As flotation optimisation requires sustained and continuous operation over an extended period, the Company's immediate focus is on rebuilding ore inventories on the ROM pad to support a planned continuous operating campaign of approximately 30 days. Given the current reduced scale of mining activities, the Board believes that establishing an adequate ore stockpile prior to recommencing optimisation represents the most efficient use of available resources and will maximise the value of future optimisation activities. The Company is therefore prioritising the accumulation of sufficient ore feed to support an uninterrupted optimisation programme and enable a comprehensive assessment of plant performance under sustained operating conditions. Based on current mining and stockpiling activities, the Company expects to have sufficient ore available on the ROM pad to recommence plant operations during July 2026. This timetable remains subject to mining performance and other operational factors.
Long Stop Date Discussions
The Company has approached Canmax Technologies Co., Ltd. ("Canmax") regarding a further extension of the Long Stop Date (see announcement on 5 January 2026 for further information) under the existing prepayment and offtake arrangements. Discussions with Canmax are constructive and positive. As part of its review process, Canmax is currently assessing the latest operational and commissioning data generated by the upgraded flotation circuit, together with the broader technical progress achieved at Zulu. While discussions remain ongoing and no definitive agreement has yet been reached, the Board is encouraged by the engagement to date and believes that both parties remain committed to finding a mutually acceptable path forward.
Under the existing prepayment and offtake arrangements, the Long Stop Date is the date by which Premier will have delivered either sufficient spodumene SC6, or provided cash settlement, to Canmax to settle the advance purchase amount provided by Canmax to Premier in full. As previously announced on 5 January 2026, Premier and Canmax agreed, subject to certain conditions, to extend the Long Stop Date to the earlier of 30 June 2026 or the date on which a reputable buyer acceptable to Canmax executed a binding agreement to settle and/or manage Canmax's Prepayment Amount plus interest on terms to be agreed by Canmax.
Publication of Audited Accounts
The Company's report and accounts for the year ended 31 December 2025 ("Accounts") are due for publication on or before 30 June 2026 ("Publication Date"). The Accounts are at an advanced stage of preparation and remain subject to final review and auditor signoff, including consideration of ongoing discussions regarding the proposed extension of the Long Stop Date. The Company continues to work towards publication by the Publication Date. Further updates will be provided as and when appropriate.
Source: polaris.brighterir.com/public/premier_african_minerals/news/rns/story/rd623px
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