Rock Tech Wins Northern Innovators Award for Tall Oil Trial

Rock Tech Lithium Inc. (OTCQX: RCKTF) and Thunder Bay Pulp and Paper jointly received the 2026 Northern Innovators Award at the Cen-Can Expo Gala Dinner in Thunder Bay for a partnership, backed by the Province of Ontario's Critical Minerals Innovation Fund and Queen's University, evaluating crude tall oil as a locally sourced flotation reagent for lithium processing.

A pulp mill by-product that Northern Ontario already produces in volume is being tested as a working input for lithium processing, and the experiment has now won an award. Rock Tech Lithium Inc. (OTCQX: RCKTF) and Thunder Bay Pulp and Paper were jointly named recipients of the 2026 Northern Innovators Award, presented by Mining Life & Exploration News at the Cen-Can Expo Gala Dinner in Thunder Bay.

The recognition, tied to the Central Canadian Resource Expo, singles out a cross-sector partnership evaluating crude tall oil — a residue of the kraft pulping process — as a locally sourced flotation reagent for lithium processing. The work is supported by the Province of Ontario through its Critical Minerals Innovation Fund and draws on research expertise from Queen's University.

What crude tall oil would actually be doing

Froth flotation is the workhorse step in most hard-rock lithium concentrators. Crushed ore is slurried with water and chemical reagents, air is bubbled through, and the reagents make the target mineral surfaces water-repellent so they cling to the bubbles and float off as concentrate while waste rock sinks. The chemistry of those reagents — collectors, frothers, depressants — determines how much lithium ends up in the concentrate and how much is lost to tailings.

Collectors used in spodumene flotation are typically fatty-acid based. Crude tall oil, which comes off the kraft pulping of softwood as a mixture of fatty and resin acids, sits in the same chemical neighbourhood. That is the premise of the Rock Tech–Thunder Bay Pulp and Paper trial: a material that a Northern Ontario mill already generates as a by-product may be able to substitute, in whole or in part, for a reagent that would otherwise be bought in and shipped in.

The interesting part is not the chemistry alone. It is the geography. Reagents are a recurring operating cost in any concentrator, and they are a supply-chain exposure — imported specialty chemicals carry freight, currency and tariff risk that a producer cannot control. Sourcing a functional equivalent from a mill in the same region collapses that logistics chain to something close to a truck ride.

Why an Ontario mill and a lithium developer ended up in the same project

Northern Ontario's forestry sector and its critical minerals ambitions have historically run on separate tracks, competing for the same skilled labour, the same road and rail capacity and, at times, the same provincial attention. A project that turns one industry's residue stream into the other's consumable is the rare case where the two are additive rather than rival.

For a pulp and paper operation, crude tall oil is a saleable by-product whose value swings with commodity chemical markets. A regional industrial buyer with a technical reason to want the material is a different kind of customer than a distant commodity offtaker. For a lithium developer, the appeal is cost and provenance: a reagent with a short supply chain and a documented Ontario origin fits neatly with the domestic-content logic now shaping North American battery supply chains.

The Province of Ontario's involvement through the Critical Minerals Innovation Fund is the tell. That fund exists to de-risk exactly this sort of pre-commercial technical work — the testing that a junior company would struggle to justify on its own balance sheet but that could change unit economics if it succeeds. Queen's University's participation supplies the metallurgical rigour needed to turn a plausible substitution into reproducible flotation data. The award was reported by INN Battery Metals.

How the market is pricing Rock Tech right now

Rock Tech carries a multi-market listing — TSXV: RCK in Canada, OTCQX: RCKTF in the United States, and FWB: RJIB in Frankfurt under WKN A1XF0V — a structure that reflects a business built around Canadian rock and European conversion ambitions.

On the US quote, RCKTF last traded at 0.48, down 3.53% on the day from a previous close of 0.50, with a session range of 0.48 to 0.50, as of 20:00 GMT on 9 September 2026. That is a sub-dollar quote in a narrow band, which is what a development-stage lithium name looks like after a prolonged stretch of weak lithium sentiment. The broader tape offered no help that session: the S&P 500 proxy SPY was at $762.40, down 0.46%, the Nasdaq 100 proxy QQQ at $716.35, down 0.28%, and the Dow proxy DIA at $524.09, down 0.75%.

The read-across is straightforward. An industry award for a reagent trial is a technical milestone, not a financing event or a construction decision, and the share price is behaving accordingly. What awards of this kind do supply is validation from within the region — useful when the next conversations are with provincial programmes, local suppliers and permitting bodies rather than with the market.

The cost question the trial has to answer

Whether this matters financially depends on numbers that have not been published. A substitute collector has to hit three marks at once: comparable lithium recovery, comparable concentrate grade, and a delivered cost below the incumbent reagent after accounting for any extra handling or refining of the tall oil. Fail any one of those and the substitution is a curiosity. Clear all three and it becomes a line item on a feasibility study.

There is also a scale question. Reagent consumption in a commercial concentrator is continuous and specified to tight tolerances; a by-product stream whose composition varies with the wood species and season feeding the pulp mill has to be characterised and stabilised before a plant will commit to it. That is precisely the sort of work bench-scale and pilot programmes are meant to settle.

What to watch from here

Three things would turn this from a good story into a material one. First, published metallurgical results comparing crude tall oil against a conventional collector on Rock Tech's own ore — recovery and grade, side by side. Second, any move from laboratory testing toward pilot-scale flotation, which is where reagent behaviour under continuous operation becomes visible. Third, a commercial framework between Rock Tech and Thunder Bay Pulp and Paper that puts volumes and terms behind the technical collaboration.

Beyond Rock Tech, the template is what deserves attention. Ontario has spent several years arguing that its critical minerals build-out should be anchored in existing industrial capacity rather than assembled from imports. A forestry residue feeding a lithium concentrator is a small, concrete instance of that argument being tested rather than asserted — and if the metallurgy holds, other hard-rock projects in pulp-producing regions have an obvious reason to run the same experiment.

Key facts

• Award: 2026 Northern Innovators Award, presented by Mining Life & Exploration News at the Cen-Can Expo Gala Dinner, Thunder Bay
• RCKTF price: 0.48, -3.53% on the day (prev close 0.50), as of 20:00 GMT, 9 Sep 2026
• Technology tested: Crude tall oil, a pulp and paper by-product, as a locally sourced flotation reagent for lithium processing
• Backers: Province of Ontario via the Critical Minerals Innovation Fund; research expertise from Queen's University

Frequently asked questions

What is the 2026 Northern Innovators Award?

It is a recognition presented by Mining Life & Exploration News at the Cen-Can Expo Gala Dinner in Thunder Bay, tied to the Central Canadian Resource Expo. For 2026 it went jointly to Rock Tech Lithium and Thunder Bay Pulp and Paper for a cross-sector partnership linking Northern Ontario's forestry and critical minerals industries.

What is crude tall oil and why use it in lithium processing?

Crude tall oil is a by-product of the kraft pulping process, made up largely of fatty and resin acids. Collectors used in spodumene froth flotation are commonly fatty-acid based, so tall oil sits in similar chemical territory. Rock Tech and Thunder Bay Pulp and Paper are evaluating whether it can serve as a locally sourced flotation reagent.

How does froth flotation work?

Crushed ore is mixed with water and chemical reagents to form a slurry, then air is bubbled through it. The reagents make the target mineral surfaces water-repellent, so those particles attach to bubbles and rise into a froth that is skimmed off as concentrate, while unwanted rock sinks and reports to tailings.

Who is funding the project?

The project is supported by the Province of Ontario through its Critical Minerals Innovation Fund, a programme aimed at de-risking pre-commercial technical work in the critical minerals sector. Queen's University contributes research expertise, supplying the metallurgical testing rigour needed to assess whether the reagent substitution is reproducible.

Where does Rock Tech Lithium trade?

Rock Tech Lithium Inc. carries multiple listings: TSXV: RCK in Canada, OTCQX: RCKTF in the United States, and FWB: RJIB in Frankfurt under WKN A1XF0V. On the US quote, RCKTF last traded at 0.48, down 3.53% from a previous close of 0.50, as of 20:00 GMT on 9 September 2026.

Does the award change Rock Tech's economics?

Not by itself. An award recognises a technical collaboration rather than a financing, permit or construction decision. For the tall oil substitution to affect project economics, it would need to deliver comparable lithium recovery and concentrate grade at a lower delivered cost than the conventional reagent it replaces, at commercial scale.

Sources

• Rock Tech Lithium and Thunder Bay Pulp and Paper Receive 2026 Northern Innovators Award — INN Battery Metals

Photo: Dominik Gawlik · Pexels Licence — source