forget about the carnallitite & focus on the 30%+ sylvinite
Kola has 1bt of 30%+ sylvinite. if 66% of the deposit is mineable, with 50% of mineable mined (due to need for walls underground), with 90% processing recovery, the saleable tonnage is 90mt or 45 year mine life
then if Dougou has 1bt of 40%+ sylivinite, the mine life is similar
ELM already have a 50 to 90 year mine life with the sylvinite
why fertilser is different, page-29
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