PH7 Technologies Targets Tough Ores with Cleaner, Closed-Loop Processing

Why It Matters

The breakthrough offers miners a lower‑cost, environmentally‑clean route to extract declining, complex ores, boosting recovery rates and cash flow while reducing hazardous waste, positioning Canada as a leader in sustainable critical‑metal production.

Key Takeaways

• Receives up to $2.8M NRC IRAP funding for scale‑up.
• Organo‑electrochemical process eliminates toxic reagents and tailings.
• Recovers 30‑40k ounces platinum‑equivalent annually from catalysts.
• Targets sulfide ores, enabling cyanide‑free heap leaching.
• Plans on‑site mining deployment within a year, expands globally.

Pulse Analysis

Demand for platinum‑group metals and other critical minerals is soaring as clean‑energy technologies proliferate, yet traditional mining methods are increasingly hampered by declining ore grades and stringent environmental regulations. pH7 Technologies’ organo‑electrochemical platform directly addresses these pressures by replacing hazardous chemicals with reusable electrochemical oxidants, creating a closed‑loop system that eliminates tailings‑related wastewater. This approach not only cuts operating costs but also aligns with ESG expectations, making it attractive to investors and regulators alike.

The core of pH7’s innovation lies in its ability to generate oxidants in‑situ, enabling heap leaching of sulfide ores—such as chalcopyrite—without cyanide or other toxic agents. By simultaneously extracting copper and gold alongside PGMs, the process improves overall metal recovery from lower‑grade, complex deposits that many miners now encounter. Ongoing pilot trials across South America, Africa, and Australia demonstrate measurable recovery gains, positioning the technology as a versatile tool for both legacy tailings and primary ore bodies.

Financial backing from the National Research Council’s IRAP program and strategic partnerships with firms like Mitsubishi provide pH7 with the runway to scale its recycling operations and transition to on‑site mining deployments within the next year. As competitors explore bio‑leaching and conventional chemical routes, pH7’s electrochemical edge offers a differentiated, lower‑risk pathway to meet the dual imperatives of profitability and sustainability. Successful commercialization could reshape supply‑chain dynamics, bolstering North America’s domestic critical‑metal capacity while setting new industry standards for responsible extraction.