Neotech Metals has taken a key step toward turning its Hecla-Kilmer rare earth project in Ontario into a working mine. The company has hired Germany-based Dorfner ANZAPLAN to design a processing flowsheet — essentially a step-by-step recipe for extracting valuable metals from the ore — and to assess whether the project can also produce niobium, gallium, and purified phosphoric acid as by-products.
What is a flowsheet and why does it matter?
For mining projects, especially those involving rare earth elements, having a large deposit is only half the battle. The other half is proving that the ore can be processed efficiently and economically. A flowsheet outlines the sequence of physical and chemical steps needed to turn raw rock into a high-purity concentrate that can be sold to manufacturers.
ANZAPLAN, a German consulting firm with decades of experience in mineral processing, will deliver a preliminary report estimating metal recoveries (how much of each element can be extracted), concentrate grades (the purity of the final product), and reagent consumption (the chemicals and materials needed during processing). These numbers are critical for determining whether a project can be profitable.
Neotech says the goal is a "simple" flowsheet — meaning fewer steps, lower costs, and less technical risk. That's especially important for rare earth projects, which often require complex separation processes to isolate individual elements like neodymium, praseodymium, and dysprosium, all of which are used in magnets for electric vehicles, wind turbines, and electronics.
Beyond rare earths: niobium, gallium, and phosphoric acid
The Hecla-Kilmer project is primarily a rare earth play, but Neotech is also investigating whether the ore contains valuable by-products. Niobium is used to strengthen steel and in superconducting magnets; gallium is a critical component in semiconductors and LEDs; and purified phosphoric acid is used in fertilizers, food additives, and industrial applications.
If these materials can be recovered at commercial grades, they could significantly improve the project's economics. By-products often turn marginal deposits into viable ones, especially when rare earth prices are volatile.
The broader market for rare earths has been under pressure recently, with prices for some key elements falling from 2022 highs. However, long-term demand is expected to grow as the world shifts toward electrification and clean energy. Western governments, including Canada and the United States, are actively trying to reduce reliance on China, which dominates rare earth processing. That geopolitical backdrop adds strategic value to projects like Hecla-Kilmer.
What this means for investors
For everyday investors, this news is a reminder that mining stocks often move on milestones, not just metal prices. A processing study is a tangible step forward — it shows the company is moving from exploration toward development. But it's still early days. The ANZAPLAN report will provide data, not a final investment decision.
Investors should watch for the results of the study, which will likely be released in the coming months. Key numbers to look for include recovery rates (higher is better), concentrate grades (higher purity usually commands a premium), and estimated operating costs. If the flowsheet shows that Hecla-Kilmer can produce rare earths at competitive costs, the project could attract joint venture partners or offtake agreements.
It's also worth noting that Neotech is a junior miner, which means its stock can be volatile. News like this can spark short-term interest, but long-term value depends on execution. The company will need to secure financing, permits, and eventually build a mine — a process that can take years.
For context, other junior miners have taken similar steps recently. Trek Metals hit manganese in 84% of drill holes at its Kuro project, validating its targeting approach. And Trinity One Metals shares jumped 9.5% on a high-grade silver find in Ecuador, showing how exploration news can move stocks.
Broader market conditions also matter. The TSX edged higher recently as battery metals surged, offsetting tech losses and tariff worries. That tailwind could help Neotech if investor appetite for critical minerals remains strong.
What's next for Hecla-Kilmer?
Neotech has not yet announced a timeline for the ANZAPLAN study's completion, but similar studies typically take three to six months. After that, the company will likely decide whether to proceed with a preliminary economic assessment (PEA), which would provide a more detailed look at potential costs, revenues, and mine life.
The project is located in northern Ontario, a mining-friendly jurisdiction with good infrastructure. That's a plus, but the remote location also means higher capital costs for building roads, power lines, and processing facilities.
For now, Neotech is focused on proving that its ore can be processed economically. If the ANZAPLAN study delivers positive results, Hecla-Kilmer could become one of the more advanced rare earth projects in Canada — and a potential beneficiary of the growing push for domestic supply chains.
