Guardian Metal Resources plc is set to become a constituent of the FTSE AIM 50 Index from 21 September 2026. The change follows FTSE Russell’s quarterly review of the FTSE AIM UK 50, FTSE AIM 100 and FTSE AIM All-Share Indices.
The company, which trades under NYSE.A:GMTL, LON:GMET and OTCQB:GMTLF, focuses on tungsten exploration and development in Nevada, USA.
Guardian Metal Resources said its addition to the FTSE AIM 50 will take effect on 21 September 2026. The announcement does not provide details on the index methodology or quantify any effect on the company’s share price, trading activity, financial results or operations.
Guardian Metal listed on AIM in May 2023. It later completed a U.S. listing on the NYSE American on March 20, 2026.
The company is advancing two co-flagship projects in Nevada: Pilot Mountain and Tempiute.
Guardian Metal describes Pilot Mountain as one of the largest undeveloped tungsten deposits in the U.S. Tempiute is described as formerly one of America’s largest producing tungsten operations. The announcement does not include project economics, production forecasts or development timelines.
In July 2025, the U.S. Department of War (DoW), acting under Title III of the Defense Production Act of 1950, as amended, invested US$6.2M in Golden Metal Resources (USA) LLC. The company identifies the entity as a wholly-owned subsidiary of Guardian Metal Resources plc.
According to the announcement, the investment supported the recently completed Pilot Mountain PFS.
Guardian Metal Resources plc (NYSE.A:GMTL)(LON:GMET)(OTCQB:GMTLF) announced that it will become a constituent of the FTSE AIM 50 Index, effective from 21 September 2026. The announcement says this follows FTSE Russell's quarterly review of the FTSE AIM UK 50, FTSE AIM 100 and FTSE AIM All-Share Indices.
The company says the inclusion in the FTSE AIM 50 Index will be effective from 21 September 2026. The source does not provide further details on the index's methodology or the practical effect of the inclusion.
Guardian Metal Resources describes itself as a strategic mineral exploration and development company focused on tungsten in Nevada, USA. It says it is advancing two co-flagship tungsten projects, Pilot Mountain and Tempiute, both located in Nevada.
The source describes Pilot Mountain as one of the largest undeveloped tungsten deposits in the U.S. and Tempiute as formerly one of America's largest producing tungsten operations. The source does not provide further project economics, production forecasts or development timelines.
In July 2025, the U.S. Department of War (DoW), under Title III of the Defense Production Act of 1950, as amended, invested US$6.2M in Golden Metal Resources (USA) LLC, a wholly-owned subsidiary of Guardian Metal Resources PLC. The source says the investment supported the recently completed Pilot Mountain PFS.
The source says the company completed a U.S. listing on the NYSE American on March 20, 2026. It also identifies Guardian Metal Resources plc as listed as NYSE.A:GMTL, LON:GMET and OTCQB:GMTLF.
The source does not quantify or otherwise state the effect of the FTSE AIM 50 Index inclusion on the company's share price, trading activity, operations, financial results or projects. It reports the inclusion and its effective date but does not provide investment advice or a forecast.