– UK, London – Guardian Metal Resources plc (LON: GMET / OTC: GMTLF), a strategic mineral exploration and development company focused on tungsten in Nevada, U.S., announced the appointment of Michael Schlumpberger to its Board as a Non-Executive Director, subject to completion of the due diligence process.
About Michael X. Schlumpberger
His extensive operational and executive experience in the critical minerals space is uniquely suited to Guardian Metal as it progresses its co-flagship projects to help reshore U.S. tungsten production. During his 20 years at PotashCorp, the world’s largest potash producer before its merger to form Nutrien, he held a myriad of senior operational roles, refining his skillset in mine development and maintenance, downstream operations, and ESG compliance. Since then, he has gone on to hold a series of operational and executive positions, including most recently Managing Director and CEO at ASX-listed American Pacific Borates Ltd, where, during his tenure, he grew the company from a market cap of AUS$20M to over AUS$900M. Michael currently acts as non-executive director for Rapid Critical Metals, a critical mineral exploration company focused on Australia and North America, and as the President of mining and management consultancy Schlumpberger Inc..
Michael Schlumpberger is an American citizen based in New Mexico, U.S.
About Guardian Metal Resources
Guardian Metal Resources PLC is a strategic mineral exploration and development company driving the revival of U.S. tungsten production and strengthening America’s independence in defense metals. The Company is advancing two co-flagship tungsten projects, Pilot Mountain, one of the largest undeveloped tungsten deposits in the U.S. and Tempiute, formerly America’s largest producing tungsten operation, both located in Nevada, one of the top-rated mining jurisdictions in the U.S.
In July 2025, Golden Metal Resources (USA) LLC, a wholly-owned subsidiary of Guardian Metal, was awarded US$6.2M from the U.S. Department of War under Title III of the Defense Production Act of 1950 to support the rapid advancement and pre-feasibility study for the Pilot Mountain tungsten Project. Guardian Metal Resources joined both the Defense Industrial Base Consortium and the Cornerstone Program. The Company has also announced plans to pursue a U.S. listing in the first half of 2026.
Tungsten is a strategic mineral essential to the defense, energy transition, technology, and industrial sectors. Against the backdrop of evolving geopolitical dynamics and Chinese export restrictions on tungsten, Guardian is positioned to play the leading role in rebuilding a reliable domestic supply chain for this critical metal.
For more information : https://www.guardianmetalresources.com/
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