On 9 October 2026, Environmental Clean Technologies Limited (ASX:ECT) announced that Xenica Inc, a Wholly Owned Subsidiary of its Acquisition target Xenica Pty Ltd, has produced MXene in the first runs of its scale-up optimisation program using a Flash Joule Heating (FJH) reactor platform operated by Metallium Ltd (ASX:MTM).

The first flash runs

Two separate flashes have been completed under the R&D and Engineering Agreement with Metallium, in line with the previously announced timetable. The first flashes processed batches of 400 grams of MAX phase precursor, with run times of 30 and 60 minutes. The program aims to identify conditions for repeatable production to commercial specifications, with an initial focus on defence applications.

The reaction products were characterised internally by X-ray fluorescence and scanning electron microscopy. Independent laboratory Moore Analytical performed X-ray diffraction, which showed changes in interlayer spacing consistent with the formation of chlorine-terminated MXene. A scanning electron microscope image of the second flash product shows an open, layered structure.

The process and potential applications

The release describes conventional MXene manufacture as selectively removing aluminium from a layered ceramic precursor using hydrofluoric acid or similarly aggressive chemistry, typically limited to small batches under 100 grams. ECT describes the FJH process as dry, HF-free and with minimal waste, and cites published research in Nature Synthesis as an early indication that it is faster and potentially more scalable.

The company says MXenes are being considered for electromagnetic interference shielding and defence coatings, including radar-absorbing and signature-management uses, and holds a sublicence to produce and sell MXenes for defence applications.

Next phase

ECT said it is progressing through a structured optimisation program to improve conversion and product consistency and to characterise material against defence-relevant specifications, ahead of identifying priority applications and preparing for customer evaluation. Using Metallium’s existing platform means the process can be evaluated beyond laboratory scale without ECT building its own infrastructure.

Sector backdrop

MXenes are two-dimensional materials with potential in electronics, energy storage and shielding. Commercial adoption has been limited by the cost and scalability of production, according to the release.

Flash Joule Heating uses rapid electrical heating to drive reactions. Whether it can be scaled to produce specified material consistently is the central question for companies developing the approach.

Risks shareholders should weigh

Only two flashes have been completed, and the release gives no yield, purity or conversion figures. The company states its focus now is improving conversion and consistency, which indicates those are still to be demonstrated.

Xenica is an acquisition target, so the transaction is not complete. ECT’s statement about support for the proposed acquisition relates to a deal whose terms and conditions are outside this announcement.

Defence customers require qualification against specifications, and no customer agreements are reported. Claims about FJH cost and scalability rely partly on published research and remain to be shown at commercial scale. The work depends on Metallium’s platform under the R&D agreement.

What’s next

ECT will continue the optimisation program with Metallium, focusing on conversion, consistency and defence-relevant specifications, followed by priority application identification and customer evaluation. Shareholders may wish to watch for further flash results, characterisation data and developments on the Xenica acquisition.