Chilwa Minerals adds niobium to a rapidly expanding Malawi resource story

Resource growth comes with a funding warning

Chilwa Minerals Limited (ASX:CHW) finished FY2026 with a much larger and more diverse exploration story, but not yet the financial runway of a producer. Its Chilwa Critical Minerals Project in southern Malawi now carries 171.8 million tonnes at 3.44% total heavy minerals, including 5.91Mt of contained heavy mineral concentrate, with about 85% classified as Measured or Indicated.

The expansion was driven by Mpyupyu, where the resource more than doubled to 109.6Mt, and Mposa, which was upgraded to 25.65Mt with roughly 83% in the Measured category. Metallurgical work produced separate ilmenite, zircon, garnet and monazite products, while a first scoping study covering the western-shore resources continued with T.Z. Minerals International. The company has no Ore Reserves, however, and remains in the exploration and evaluation phase.

“Chilwa Critical Minerals Project location and target locations (as at end-June 2026).”

“Mpyupyu resource classifications and new discovery Mpyupyu West to the left of image, west and south of Mpyupyu Hill. The Nakombe Niobium/ REE target is also shown centre of image.”

Caption and image © Chilwa Minerals Ltd. From “Annual Report”, 28 Oct 2026.

The scale-up was documented alongside the Mpyupyu resource expansion, which more than doubled the deposit to 109.6Mt. Chilwa also identified Mpyupyu West as a new heavy mineral sands target covering more than 17 square kilometres by the end of June, with sonic drilling beginning at the reporting-period close.

Niobium discovery broadens the commodity mix

Diamond drilling at Nakombe added a second major thread. Hole MPYDD006 intersected 126.1 metres at 0.31% Nb2O5 from 125 metres downhole, including 62 metres at 0.38%, with associated total rare earth oxides, tantalum and gallium. Follow-up drilling extended mineralisation across about 270 metres of strike, and Chilwa defined a conceptual 34-51Mt Exploration Target for Nakombe South.

“Diamond drilling at Nakombe”

“Mposa basal clay REE corridor”

Caption and image © Chilwa Minerals Ltd. From “Annual Report”, 28 Oct 2026.

That target is not a Mineral Resource or an Ore Reserve. The company expressly cautions that there has been insufficient exploration to estimate a resource and that further work may not produce one. Beneath Mposa, meanwhile, assays from 200 basal-clay samples indicated an approximately 8km rare earth corridor averaging 525 parts per million TREO, with magnet rare earths accounting for about 21% of TREO. Desorption testing was still required to establish whether the mineralisation is recoverable in ionic-adsorption form, following the Mposa rare earth corridor announcement.

Losses and cash burn keep the balance sheet in focus

Chilwa reported an A$6.88 million loss for FY2026, up from a restated A$3.36 million loss a year earlier. The result included A$2.85 million of share-based payments and A$726,388 of Nasdaq-related costs expensed through the income statement. Net cash used across operating and investing activities was A$11.63 million, while year-end cash stood at A$1.07 million and net current liabilities at A$976,874.

BDO gave an unmodified audit opinion but highlighted a material uncertainty related to going concern. The directors said continued operations depended on the US offering, further funding and the ability to adjust exploration spending; after year end, major shareholder Luso Global Mining committed up to A$1.5 million of support if required. The related-party Mota-Engil group also provided A$4.52 million of technical, drilling and site services during the year, with A$967,429 payable at 30 June.

Nasdaq listing delivers fresh capital after year end

The funding position changed after the reporting date. Chilwa’s American Depositary Shares began trading on Nasdaq on 1 October, and the IPO completed on 2 October with 625,000 ADSs issued at US$5.60 each, raising approximately US$3.5 million gross. Each ADS represents 10 ordinary shares and carries a warrant exercisable at US$5.60 for five years; the proceeds are earmarked for exploration, working capital and corporate purposes.

The US$3.5m Nasdaq IPO had been positioned as a way to strengthen access to US critical-minerals investors, but it does not turn Chilwa into a cash-generating miner. The next test is whether the new capital can carry the company from an enlarged resource base and conceptual targets through metallurgical validation, a scoping study and the more demanding pre-feasibility, permitting and development stages.