PyroGenesis Completes 45,000-Tonne Dross Rollout at Ma’aden

PyroGenesis has completed the last of seven Drosrite systems at the Ma’aden aluminium complex at Ras Al-Khair in Saudi Arabia, including two 10,000-tonne-per-year units, the largest it has ever deployed. The company announced the milestone yesterday, 15 October 2026. The fleet can process up to 45,000 tonnes of dross a year, making it a large-scale test of salt-free aluminium dross recovery.

The milestone reaches beyond one contract. Dross volumes are growing at roughly 3-4% a year, and PyroGenesis says 30-40% of that material is still sent to landfill.

That puts the story inside every smelter’s cost base, not on the margins of it.

Here is how much of the headline holds up, where the marketed recovery claim parts ways with reported plant results, and what to check before reading this as a signal for the sector.

What does a 45,000-tonne rollout in Saudi Arabia actually tell you?

The scale is real. The installation runs in phases:

• Five 5,000 tpy units and two 10,000 tpy units
• First three units began commercial operation in April 2022 at a temporary site, then moved to the permanent plant
• Final four units are now running at a purpose-built plant
• Structured as a build-own-operate-transfer (BOOT) deal with Radian Oil and Gas Services Company, where an operator builds and runs the plant before handing it over
• Sited within Ma’aden’s integrated complex, a joint venture with Alcoa

Combined nominal capacity: up to 45,000 tonnes of dross per year

PyroGenesis says further dross-processing needs could arise as the complex expands. A reference site this size inside a working smelter is a credential most smaller equipment suppliers never get.

The financial footnotes behind the milestone

Installed is not the same as paid for.

The contract, worth about C$25 million or more, still carries an outstanding receivable. The customer received an extended payment schedule, and one-third of the remaining balance arrived in Q4 2025.

Q2 2026 revenue reached C$4.4 million, up from C$3.0 million a year earlier (about 47%). Backlog stood at C$40.0 million, 88% in US dollars, at 6 August 2026, superseding earlier higher figures. Two customers made up 45% of revenue in Q1 2026, and a North American beverage-can scrap system worth C$800,000-C$1 million remains under discussion.

North American demand for recovered metal is rising, with US aluminium scrap recovery climbing sharply in early 2026, which helps explain why a beverage-can scrap system remains a live prospect for the company.

For you, the completion removes delivery risk. Collection, concentration and working-capital risk remain, so treat this as a credential rather than a cash event.

How salt-free dross processing works, and where the 98% claim meets 45%

Dross forms when oxygen hits molten aluminium. The skimmed layer mixes metal with oxides, salts and impurities, and it has traditionally been landfilled or treated with salt. PyroGenesis estimates smelters can lose 2-10% of melt output this way.

Drosrite is a patented, salt-free batch process using an argon-filled rotary tilting furnace, so it avoids salt cake, the salty residue conventional furnaces leave behind.

Real Alloy and ALTEK are also pursuing a zero-waste salt-slag project in Wabash, Indiana, backed by up to US$67.3 million in US Department of Energy cost-sharing.

Why the recovery numbers differ

Two numbers, one plant: PyroGenesis claims recovery of up to 98%; Ma’aden’s casthouse study reports about 45% average across all alloys

The Ma’aden study still reported lower dross inventory, better casthouse yield and recovered metal returned to its furnaces. PyroGenesis also says it can outperform some conventional processes by up to 20%.

The gap may come from denominators: total dross, recoverable metal only, or a specific feedstock. Dross can hold up to 80% metal, but black dross holds far less. Public sources do not reconcile the figures, so ask which denominator any vendor is using before you compare technologies.

The gap between claimed and reported recovery may partly reflect how finely trapped metal is captured, and fine-fraction recovery is where competing routes tend to diverge most sharply on yield.

Why growing dross volumes turn a smelter by-product into an economic question

Output is rising, and dross rises with it. Methodologies differ, so these figures are not perfectly comparable.

Some estimates reach 8 Mt once downstream operations are included. The value sits in four levers:

1. Recovered metal returned to furnaces or sold
2. Higher casthouse yield
3. Energy and carbon savings, with some routes as low as ~5% of primary’s footprint, depending on technology and boundaries
4. Avoided waste liabilities, as wet dross can release ammonia, methane, phosphine, hydrogen and hydrogen sulphide, and Saudi Arabia’s 2025 circular-economy specification tightens oversight

The caveats matter. Salt-free recovery still leaves a non-metallic residue, and smelters can choose established alternatives. For you, dross recovery is a margin and compliance lever that scales with smelter output, so exposure sits with equipment and service providers rather than the metal price.

Energy and carbon savings of this kind sit within the wider shift toward regenerative aluminium production, where recovered metal displaces primary output and cuts the footprint of each tonne supplied.

What the Saudi rollout proves, and what still needs checking

The rollout proves scale, delivery and a live reference site. It does not yet prove independently verified recovery rates or clean cash collection. Watch for:

• Reconciliation of the 98% and 45% figures
• Collection of the Saudi receivable
• Follow-on orders from Ma’aden or the North American can-scrap system
• Movement in customer concentration

Progress on those four points is what turns a credential into a business case.

This article is for informational purposes only and should not be considered financial advice. Investors should conduct their own research and consult with financial professionals before making investment decisions.