Highlights

  • Mt Edon has a maiden Inferred Mineral Resource of 5.44 million tonnes grading 0.16% rubidium oxide.
  • The estimate contains approximately 8,300 tonnes of rubidium oxide and reports lithium oxide separately.
  • September exploration at Mac Well returned rock-chip grades of up to 0.78% rubidium oxide.
  • Morella reported AUD 555,000 in cash at 30 September 2026 and estimated funding for 0.7 quarters.
  • Further drilling and metallurgical studies remain necessary before development decisions can be assessed.

Morella Corporation Limited (ASX:1MC) explores critical minerals across Western Australia and North America, with its Mt Edon project focused on rubidium and lithium mineralisation. Its latest exploration disclosures place the maiden Mt Edon resource alongside continuing metallurgical work and near-term funding considerations. The September resource statement establishes an initial geological estimate, while further drilling and technical assessment are needed to clarify the project’s development prospects.

What the Maiden Mt Edon Resource Measures

On 17 September 2026, Morella Corporation (ASX:1MC) announced a maiden Mineral Resource Estimate for Mt Edon near Paynes Find in Western Australia. Prepared by Snowden Optiro under the JORC 2012 reporting framework, the Inferred estimate totals 5.44 million tonnes at an average grade of 0.16% rubidium oxide, containing approximately 8,300 tonnes of rubidium oxide. It uses a 0.10% rubidium oxide cut-off grade.

The Sophie prospect contributes 4.50 million tonnes, while Miles & June accounts for 0.94 million tonnes. The estimate also reports an average 0.07% lithium oxide grade, representing approximately 3,600 tonnes of contained lithium oxide. These quantities describe mineral material in the ground; they are not production forecasts or an ore reserve. The resource is classified entirely as Inferred, meaning geological confidence is insufficient for the higher-confidence resource categories.

The economic assessment underlying the estimate considers rubidium as the relevant product. The reported lithium content should not therefore be treated as an independently established source of project revenue. Morella Corporation (ASX:1MC) must complete additional technical studies to determine the potential recoverable product and development requirements.

Mac Well Sampling and Exploration Arrangements

At Mac Well, Morella reported on 30 September 2026 that 21 of 27 rock-chip samples exceeded 0.1% rubidium oxide, including eight above 0.3%. The highest reported sample contained 0.78% rubidium oxide and 0.71% lithium oxide. Rock-chip results are selective surface observations and cannot establish the grade or continuity of a mineral resource. The company also collected 296 soil samples to support subsequent target assessment.

Morella Corporation (ASX:1MC) and its joint-venture partner Elevra announced an indicative proposal in August 2026 to expand their Western Australian exploration arrangements. Under the non-binding proposal, Morella could earn a 51% interest in four additional projects through AUD 300,000 in exploration expenditure over two years. Due Diligence and definitive documentation remain necessary; the proposal should not be described as completed.

Cash Position and Technical Work Ahead

The September 2026 quarterly cash-flow report recorded AUD 555,000 in cash at 30 September, compared with approximately AUD 1.376 million at the previous quarter-end. Operating outflows were AUD 391,000 and investing outflows were AUD 405,000, including AUD 385,000 directed towards exploration and evaluation. Its Appendix 5B estimated available funding at 0.7 quarters at the reported spending rate.

The company indicated that exploration intensity could be adjusted and further Capital would be required. Its FY26 statutory accounts reported a net loss after tax of approximately AUD 6.23 million for the year ended 30 June 2026. These figures distinguish the cost of exploration and corporate activity from the geological resource reported at Mt Edon.

Morella Corporation (ASX:1MC) has identified infill and step-out drilling, further density measurements and continued metallurgical testing among prospective next steps. Laboratory work previously achieved rubidium extraction of up to 93.6% into solution, but that result is not equivalent to commercial-scale recovery or a demonstrated saleable product. Further testing is necessary before the project’s processing route can be evaluated fully.

Key Insights

The maiden Mt Edon estimate gives Morella Corporation (ASX:1MC) an initial quantified rubidium resource, while Mac Well sampling identifies additional exploration targets. However, the resource remains Inferred and the proposed joint-venture expansion is non-binding. The limited September-quarter cash position adds a financing constraint to planned drilling and metallurgical work. Future technical results, documentation of any new arrangements and subsequent funding disclosures will determine how the company’s 2026 programme progresses.