Macarthur is an iron ore development, gold and lithium exploration company

Listed on the TSX Venture Exchange (TSX-V: MMS) and Australian Stock Exchange (ASX: MIO)

Macarthur is an iron ore development, gold and lithium exploration company that is focused on bringing to production its Western Australia iron ore projects. The Lake Giles Iron Project mineral resources include the Ularring hematite resource (approved for development) comprising Indicated resources of 54.5 million tonnes at 47.2% Fe and Inferred resources of 26 million tonnes at 45.4% Fe; and the Lake Giles magnetite resource of 53.9 million tonnes (Measured), 218.7 million tonnes (Indicated) and 997 million tonnes (Inferred). Macarthur has prominent (~721 square kilometer tenement area) gold, lithium and copper exploration interests in Pilbara region of Western Australia. In addition, Macarthur has lithium brine Claims in the emerging Railroad Valley region in Nevada, USA.

Market Price



Latest News Releases


Latest Media


CEO Joe Phillips September webinar – hosted by Investor Cubed    

Interview with The Market Herald & Eddie Sugar – President EAS Advisors


Macarthur GM Andrew Bruton speaks with The Market Herald

Mineral Resource Upgrade at Like Giles Iron Ore Project

Latest Projects

  • Reynolds Springs Lithium Project

    Soil sample results of up to 405 ppm Li Macarthur Minerals, through its wholly owned US subsidiary, Macarthur Lithium Nevada Limited, staked 210 new unpatented placer mining […]
  • Treppo Grande Iron Ore Project

    The Treppo Grande Project covers an area of 68 km2 and is located approximately 32 km west of the MIO Projects. The Treppo Grande Project covers […]
  • Moonshine Magnetite Project

    Inferred Mineral Resource consisting of 1,316 Mt @ 30.1% Fe. The Inferred Mineral Resource estimate for the Moonshine Magnetite Project was initially prepared by CSA Global […]