Macassa got > 30% production efficiency improvement fromlithium battery-powered mining fleet. No diesel fumes, 10% of the heat output, more capacity. Strongly-suspect WDO will find faces 4 & 5 before long, nonetheless KL has achieved significant production increases by keeping on the edge of deep vein mining technology, and ore transport to the shaft is the bottleneck at Eagle. Middlemiss said it's not the shaft lifting capacity; in fact, Eagle currently only skips ore up the shaft during the 3rd shift