Lake Johnston

  • 1.5Mtpa processing plant
  • Maggie Hays Ni 52kt Ni* (grade - 1.5%)
  • Abi Rose Ni discovery confirms prospectivity
  • Intrusive model to be tested

History

  • Emily Ann - 1.5Mt @ 3.5% Ni mined and processed b/n 2001-2007 
  • Maggie Hays - 10Mt @ 0.6%Ni mined and processed b/n 2008-2014

Exploration activities for Lake Johnston over the 2021 financial year focussed on the collation of geological data and verification of geology models and targets previously generated. The work was completed by NewExco with final report, delivered during September 2021, indicating the tenements remain prospective for further nickel sulphide discoveries and prioritising targets requiring drill testing. Poseidon and NewExco have started exploration program planning and anticipate engaging resources and drill rigs to start testing these targets during FY22, with the poorly tested upper surface of the Western Ultramafic being an early priority to test for Kambalda style deposits (Figure below).

The Lake Johnston project is considered highly prospective for further nickel discoveries. Future exploration works will focus on building resources to facilitate a recommencement of mining and processing operations, leveraging off the 1.5Mtpa processing plant and associated infrastructure located on site.

Magnetics map of the Lake Johnston area highlighting project areas.

Current resources & infrastructure

  • Maggie Hay - 3.5Mt @ 1.5% Ni* for 52kt Ni
  • 1.5Mtpa process plant (on C&M)
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