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Metallic Minerals Achieves 99.9% Pure Copper via New Electrochemical Process at La Plata

Story Highlights
  • Metallic Minerals and Columbia University proved an ambient electrochemical process can recover 99.9% pure copper from La Plata chalcopyrite sulphides without conventional high-temperature steps.
  • The new method streamlines copper production, reduces reliance on smelters, and creates an iron-rich residue for separate recovery of gold, silver, PGEs and rare earths, enhancing domestic critical minerals value.
  • Looking for the best stocks to buy? Follow the recommendations of top-performing analysts.

Meet Samuel – Your Personal Investing Prophet

Metallic Minerals ( (TSE:MMG) ) has provided an update.

Metallic Minerals has reported initial proof-of-concept results from a research collaboration with Columbia University’s Gadikota Research Group, demonstrating ambient-temperature electrochemical recovery of 99.9% pure copper metal from chalcopyrite-dominant sulphide material at its La Plata project in Colorado. Laboratory tests selectively dissolved about 70% of the copper from whole drill core within four hours without prior flotation or high-temperature treatments, with subsequent electrodeposition achieving near-complete copper recovery from solution.

The process separates silver, gold, platinum group elements and rare earth elements into an iron-rich solid residue, enabling a streamlined two-stage flow sheet that produces high-purity copper while creating a defined secondary feedstock for critical mineral recovery. Metallic Minerals says the platform could reduce dependence on third-party smelters, support closed-loop, lower-energy processing and enable more domestic value-added refining, with ongoing work aimed at optimizing recoveries and developing selective extraction pathways for the remaining metals.

The most recent analyst rating on (TSE:MMG) stock is a Hold with a C$0.40 price target. To see the full list of analyst forecasts on Metallic Minerals stock, see the TSE:MMG Stock Forecast page.

Spark’s Take on TSE:MMG Stock

According to Spark, TipRanks’ AI Analyst, TSE:MMG is a Neutral.

The score is held down primarily by weak financial performance (no revenue, continued losses, and persistent cash burn), partially offset by a relatively low-risk balance sheet (near-zero debt) and mildly positive technical trend (price above key moving averages with neutral momentum). Valuation provides limited support given the negative P/E and no dividend yield.

To see Spark’s full report on TSE:MMG stock, click here.

More about Metallic Minerals

Metallic Minerals Corp. is a mineral exploration and development company focused on copper, silver, gold, platinum group elements and rare earth elements. Its flagship La Plata project in southwestern Colorado targets chalcopyrite-dominant sulphide mineralization and critical minerals, positioning the company within the broader energy transition and strategic metals supply chain.

Average Trading Volume: 397,644

Technical Sentiment Signal: Buy

Current Market Cap: C$87.24M

For detailed information about MMG stock, go to TipRanks’ Stock Analysis page.

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