Building What Has Never Been Built: Aduro's FOAK and the Two Bear Arguments

Disclosure: I own shares of $ADUR, so I am biased. This is not financial advice.

Strip away the noise, and almost every bear argument on Aduro Clean Technologies $ADUR reduces to one of two claims.

The first: Hydrochemolytic™ Technology (HCT) won’t scale. It works in a lab, maybe in a pilot, but it will break somewhere between a pilot skid in London, Ontario and a commercial plant in the Netherlands.

The second: if it really works, why is it taking so long? Why no commercial plant yet, why no licensing deal, why no signed contract with a major?

I’ve written about scale-up before (The Scale-Up Question and The Wrong Scale-Up Risk). This piece is different. I want to tie both bear arguments to the one asset that settles them: Chemelot's First-of-a-Kind (FOAK) plant. Because once you understand what a FOAK is, both arguments fall apart, and they fall apart for the same reason.

Part 1: “It won’t scale”

The hardest jump is already done

Aduro has been developing this chemistry since 2011. The path ran from vial-scale batch reactors, to the R2 continuous-flow plastic reactor commissioned in 2023, to today’s Next Generation Process (NGP) pilot plant running continuously at roughly 10 kg/hr. That is an increase in throughput of roughly three orders of magnitude from where the chemistry started.

More important than the multiple is what kind of jump it was. Moving a reaction out of a batch vessel and proving it holds together in continuous flow is the single riskiest transition in chemical process development. It is where most promising chemistries die. Aduro’s technical team, including Head of R&D Birendra Adhikari, has described the batch-to-continuous step as the program's biggest scaling risk, and the pilot-to-commercial step after it as proportionally lower risk.

The NGP campaigns since June show the jump worked. In June 2026, the pilot ran 47 continuous hours on recovered polypropylene, about 35 at steady state, at ~86% liquid hydrocarbon yield, as reported by the company, with ~85% of that liquid in the C20-and-below range, and recovered from deliberately induced upsets in about two hours. Deliberately breaking your own process to see if it recovers is not what a company hiding a scaling problem does.

Then, in September, Aduro ran a longer, harder campaign: 75 hours, roughly 758 kg of polymer, stepping from 100% PP to an 80:20 PP/PE blend, then to a 50:50 blend. Condensable hydrocarbon yield came in at 88.8%, 90.8% and 89.2%, respectively. Product-quality indicators stayed consistent with prior campaigns, and after process-condition changes, the system returned to target about two hours faster than in the comparable prior run. (One note on the metric: June reported liquid yield and September reported condensable hydrocarbon yield, so the figures aren’t strictly like-for-like.) Across the July, August and September campaigns, the company reports steadily improving process control with consistent performance across feed compositions.

Longer runs, changing feeds, the same output, and tighter control each time. That is what a process that scales looks like. The next step, per the company, is longer campaigns on actual waste plastic from prospective FOAK feedstock partners.

Now look at what remains. Chemelot's FOAK is designed for roughly 10,000 tonnes per year, or about 1,000 kg/hr. From the NGP’s 10 kg/hr, that is a ~100x step. The remaining multiple is smaller than the one already behind us, and it runs in continuous mode, the hardest mode to reach.

Mild conditions are a scaling advantage, not a footnote

HCT runs in a water-based system at moderate temperatures (roughly 240–390°C) and below supercritical conditions. Conventional pyrolysis typically runs hotter, often 400–600°C and above, while supercritical-water processes, by definition, operate above water’s critical point (374°C, ~221 bar).

Why does that matter for scale? In general, the harsher your conditions, the more mechanical than chemical your scale-up risk becomes: exotic metallurgy, thicker pressure vessels, coking and fouling of reactor surfaces, and harder heat management. Coking in particular has been a recurring problem for pyrolysis operators at scale. Milder conditions mean standard pressure-vessel design codes, more conventional materials, and fewer things that can go wrong when you make the vessel bigger.

Add an in-situ hydrogen donor, consumed as an operating input rather than supplied from an external hydrogen plant, and an output the company says is cracker-ready without hydrotreatment, and the FOAK has fewer units to build and fewer interfaces to fail.

Catalogue equipment, proprietary chemistry

This is the point most buyers miss entirely. Aduro is not inventing a new machine and hoping it scales. The NGP is built from three main systems (an extruder that prepares and feeds the plastic, a reactor system, and a product-recovery system), fabricated as modular skids by Zeton with industrial-grade Siemens automation.

Extruders, pumps, heat exchangers, separation and distillation equipment: these are catalogue items with well-published scaling relationships, operating every day across the petrochemical industry at sizes far larger than Aduro’s FOAK. CRO Eric Appelman has described the NGP’s components as building blocks that have been around for decades. The chemistry is proprietary. The hardware is not. The FOAK takes the same approach as the NGP, just bigger, and Siemens chose the control architecture so control strategies translate directly to larger plants.

What’s honestly left to prove

I’m not going to pretend the risk is zero. Two things remain genuinely unproven: heat transfer behaviour in a larger reactor, and duration. Going from 47 to 75 hours is real progress, but even 75 hours is a small fraction of the weeks-to-months of continuous operation a commercial plant needs, and so far the feeds have been controlled polyolefin blends rather than real-world mixed waste. But notice what kind of risk that is. It is chemical engineering risk, not chemistry risk, and it is exactly the risk a FOAK exists to retire, with one of the world’s most experienced engineering contractors carrying the design. Which brings us to the second bear argument.

Part 2: “Why is it taking so long?”

A FOAK is sequential by nature

“First of a kind” is not marketing language. It means no one has ever built the plant before. There is no prior design to copy, no prior permit to reference, no prior construction schedule to benchmark against. Each step depends on the one before it:

• Site. You cannot design a plant without knowing where it goes. Aduro selected Chemelot Industrial Park in Sittard-Geleen in January 2026, one of Europe’s leading integrated chemical clusters, with the utilities, infrastructure and downstream neighbours a chemical recycling plant needs.
• Permits. Dutch environmental permitting is thorough and takes time. Aduro is working with Ebert HERA, a specialist permitting firm.
• Engineering partner. In August 2026, Aduro selected Saipem, one of the world's largest engineering and construction groups, for Early Works and Services on the FOAK. This is structured as a stage-gated pathway: engineering and procurement support and an independent capex review now, maturing toward front-end engineering design (FEED), then procurement, construction, commissioning and start-up, each subject to completing the prior stage. Aduro says the Early Works are funded from existing cash.
• Pilot data. The FOAK design is fed by live NGP operating data, and Saipem is already receiving it as part of the Early Works. That is the correct order. Freezing a commercial design before your pilot has told you everything it can is how FOAKs fail.
• People. Aduro appointed Jan Lemmens as dedicated FOAK Project Director in June 2026.

None of these can be compressed into the others. You don’t pick a contractor before you have a site, and you don’t finalize design before you have the pilot data.

Yes, the timeline has moved. Management now guides FOAK operations to early calendar 2028, later than the mid-to-late 2027 previously discussed. I’d rather say that plainly than have a bear say it for me. But slips on first-of-a-kind industrial plants are the norm, not the exception, and the chemical recycling sector is full of plants announced quickly that never ran at design capacity. The question that matters is not “why isn’t it built yet” but “is each gate being passed in the right order.” So far, it is.

For the first time, the money is there

This is the piece of context most bears leave out. For most of its history, Aduro was a small laboratory company funding R&D on a shoestring. It could prove chemistry; it could not finance an industrial plant.

That has changed. After the June 2026 financings, Aduro reported C$65.7 million in cash as of August 31, 2026, up from C$38.3 million three months earlier, with adjusted EBITDA of roughly negative C$2.7 million for the quarter. For the first time since inception, Aduro has the balance sheet to take a commercial unit through engineering and toward a final investment decision from cash on hand.

To be precise: the final FOAK capex has not been published, and Saipem’s review is part of setting it. Some combination of project-level financing, strategic capital, or an opportunistic equity raise to complete construction wouldn't surprise me, and for a venture-stage industrial company, it would be entirely normal. The point is that the company is no longer waiting for money to start. Asking why Aduro didn’t build a commercial plant in 2022 is asking why a company with a fraction of today’s cash didn’t build a plant that requires today’s cash.

Part 3: “Why no commercial or licensing deals?”

This is the weakest bear argument of all, and it’s worth taking apart from both sides of the table.

The licensees won’t sign yet, and they shouldn’t

The petrochemical industry has spent billions on chemical recycling, much of it on pyrolysis projects that underdelivered. No serious operator will commit to a license for a technology before it has run at commercial scale. That is not a knock on Aduro; it is how industrial technology adoption works everywhere. The FOAK is the proof point the entire licensing model hinges on, which is why I’m watching licensing traction after the FOAK runs, not a license signed before it.

And Aduro shouldn’t want to sign yet either

Now sit in Ofer Vicus’s chair. He is co-founder, CEO and the company’s largest shareholder. Any license signed today would include a pre-FOAK risk discount baked in; the counterparty would insist on it. Signing now locks in the cheapest terms Aduro will ever get for a technology you believe is about to be de-risked. If I owned the largest block of the company, I wouldn’t do it. Nobody rational would.

That is especially true given which way the wind is blowing:

Plastics. Under the EU Packaging and Packaging Waste Regulation, minimum post-consumer recycled content becomes mandatory for plastic packaging from 2030: 10% for contact-sensitive packaging made from plastics other than PET, rising to 25% in 2040, and higher thresholds for other categories. For food-contact polyolefins, essentially no mechanically recycled supply qualifies, pushing converters toward chemically recycled material counted under mass balance. The Commission is due to adopt the implementing act that sets how recycled content is calculated and verified, including how chemical recycling counts, by 31 December 2026. CEFLEX notes European chemical recycling capacity sits below 100,000 tonnes a year today, against hundreds of thousands to over a million tonnes needed to hit even the 10% content-sensitive target. Demand is being legislated into existence, and supply isn’t there.

And Aduro has a seat at the table. In October 2026, CRO Eric Appelman was elected to the Board of Chemical Recycling Europe for the 2026–2028 mandate, alongside executives from BlueAlp, ARCUS, Helix Projects, and Plastic Energy, as the rules governing this market are being written.

Heavy oil and paraffinic crude. Energy security is back at the top of every agenda. Upgrading heavy and waxy crudes closer to the wellhead, reducing diluent and logistics costs, and unlocking stranded barrels is more valuable today than it was two years ago. (In fairness: Aduro’s heavy oil and paraffinic results are bench-scale, and management has said this vertical will need its own pilot. It is optionality, not a near-term revenue line.)

When both of your end markets are moving toward you, you don’t sell the option early.

This doesn’t mean nothing is happening commercially

The pre-commercial groundwork is real and visible: TotalEnergies in the final stage of its technical evaluation program, graduation from Shell’s GameChanger program, a third-party steam-cracker validation (announced November 2025) in which HCT oil from mixed waste plastic was processed as-produced without dilution or pre-treatment, and a letter of intent with an international commodities trader for a pilot-to-FOAK validation program. These are the precursors to commercial agreements. Conversion into licenses comes after the FOAK proves the process at scale, which is exactly the order you’d expect.

What would change my mind?

Being long a concentrated position means watching the basket carefully. Here is what would genuinely concern me:

1. FOAK scale-up failure. If the plant cannot sustain design throughput and yield over extended continuous operation, the thesis is broken. This is the real risk, and it’s the only one that truly matters.
2. Gates stalling without explanation. If the Saipem process fails to progress to FEED, permitting hits a wall, or the 2028 timeline slips materially without a credible reason.
3. No licensing traction after the FOAK runs. If the plant operates successfully and the industry still doesn’t engage, the economics or the market are wrong.

What’s not on my list: no license signed before the FOAK exists, and the company raising capital to build it. Those aren’t red flags. They’re what building a first-of-a-kind plant looks like.

Bottom line

The two main bear arguments on Aduro contradict each other. One says the technology is too unproven to scale; the other says the company should already have signed commercial deals. You can’t have both. The honest answer to both is the same: FOAK proves scale, and it unlocks commercial terms worth signing.

The hardest scale-up, batch to continuous, is done, and successive NGP campaigns are now running longer, on changing feeds, at roughly 89–91% condensable yield. The chemistry runs under mild conditions in catalogue equipment. The site is chosen, permitting is underway, a world-class engineering contractor is engaged, and for the first time in its history the company has the cash to build. The bears are asking why the house isn’t finished while they're pouring the foundation correctly.

I’ll keep watching the basket.

This is not financial advice. I own shares of $ADUR , so I am biased. Long $ADUR | Not financial advice | DYOR.

Sources

• Aduro, Aduro Selects Saipem for Engineering and Procurement Support for First-of-a-Kind HCT Facility at Chemelot, GlobeNewswire, Aug 19, 2026
• Aduro, Reports First Quarter Fiscal Year 2027 Results and Provides Business Update, GlobeNewswire, Oct 16, 2026
• Aduro, Reports Fourth Quarter and Fiscal Year 2026 Results, GlobeNewswire, Sept 1, 2026
• Aduro, Chief Revenue Officer Eric Appelman Elected to the Board of Chemical Recycling Europe, GlobeNewswire, Oct 9, 2026
• Aduro, Selects Chemelot Industrial Park for First-of-a-Kind Industrial Plant, GlobeNewswire, Jan 29, 2026
• Aduro, Achieves Key Milestone with NGP Pilot Plant Transitioning to Operating Campaigns, GlobeNewswire, Feb 2026
• Aduro, Provides Update on NGP Pilot Plant Progress, GlobeNewswire, Aug 14, 2025
• Aduro, steam-cracker validation release, GlobeNewswire, Nov 20, 2025
• Regulation (EU) 2025/40 (PPWR), Article 7 and Annex II
• CEFLEX, commentary on PPWR recycled content targets and European chemical recycling capacity
• Aduro, Aduro Reports 88.8% to 90.8% Condensable Hydrocarbon Yield Across Changing Polyolefin Feeds in 75-Hour NGP Campaign, GlobeNewswire, Sept 23, 2026