Metallium (ASX:MTM) runs three FJH reactors at 83% availability

A 12-hour parallel campaign with near 100% utilisation pulls the Texas platform within reach of TRL 6

Metallium (ASX:MTM) has just delivered the operational data point its shareholders have been waiting on for months. The company ran three Flash Joule Heating reactors in parallel for 12 hours at its Texas interim testing facility, hitting 83% availability and roughly 100% utilisation during active operation.

We have been tracking this story closely over the past several months. Feedstock was largely solved through the Glencore deal earlier in the year, offtake was sewn up through the 10-year Indium Corporation agreement, and Pentagon credentialing arrived via the US$1m Phase II SBIR award from the Department of War.

What was missing from the picture was hard evidence that the small modular reactor architecture could actually run in parallel without falling over. Today’s announcement closes that gap.

The campaign processed 18 successful batches across roughly 0.3 tonnes of inert material, with zero safety incidents and zero lost-time injuries. Throughput rates were broadly consistent with several tonnes per day of commercial feedstock once preprocessing and upgrading are applied.

Why 83% availability on a first multi-unit run is the real headline

First-of-kind commissioning campaigns rarely hit numbers like this. Availability of 83% on a maiden parallel run, with utilisation near 100% during active operation, exceeded the company’s own internal expectations.

The key point is what this validates. Stable fluidisation across three independent processing trains, repeatable batch procedures, working integrated controls, and a 12-person team that ran the campaign cleanly.

Investors should read this as the platform clearing its mechanical and operability hurdles before the chemistry hurdle. Get the engineering wrong and the chlorination work cannot even begin.

The chlorination permit is the next domino, and it is close

This campaign used inert material under a nitrogen atmosphere. That was a deliberate choice to isolate mechanical performance from reaction chemistry.

Management has flagged that the chlorination permit amendment for the interim facility is expected in the coming weeks. The original primary reactor building is having its roof replaced after structural deficiencies were found, which is why the interim facility had to be stood up.

Once permitted, multi-unit chlorination campaigns on catalytic converter scrap and electronic waste begin. That is where metal recovery data, product purity numbers and reagent economics start landing.

Where this sits against the broader Metallium story

The bigger picture matters here. The US remains roughly 100% import-dependent on primary gallium, germanium import reliance sits above 70%, and China’s export licensing has carved out a widening price gap.

Our view is that today’s campaign was the operational hinge the investment case needed. Technology validated at small scale, feedstock contracted, offtake locked, defence funding secured. Demonstrated parallel operability was the missing piece.

The skeptical read is that inert media is not the same as live chlorination chemistry, and a 0.3 tonne run is not 8,000 tonnes per annum. Both are fair, but the engineering data set generated here de-risks the next campaigns meaningfully.

The Investors Takeaway for Metallium

If the chlorination permit arrives on the flagged timeline and the first reactive campaigns run cleanly, Metallium will have walked from technical validation to integrated system validation in the space of roughly two quarters. That is the kind of cadence that gets attention from generalist funds, not just the critical minerals specialist crowd.

We would want to see the first chlorinated multi-unit run land before getting fully constructive, because that is where metal recovery rates, product purity and reagent consumption actually appear. Investors can read our previous coverage of this name at stocksdownunder for how the feedstock, offtake and Pentagon funding pieces fit together.

The watch list from here is short. Permit arrival, first reactive campaign data, and any signal on TRL 6 progression.

Pitt Street Research Directors owns shares in the company discussed. This article reflects personal views and is not financial advice.