Getting these recoveries at PH1 at atmospheric pressure is very good. OD6's announcement on 3rd April about the met of their Esperance deposit got their recoveries using 25g/L HCL. By my calcs a pH of 0.16. Have you looked into the pH and pressure required to extract nickel from Laterite ores by way of comparison?
Ann: Updated Koppamurra resource announcement, page-9
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