Copper price recovered to nearly USD$8000/t or $3.55/lb, KZL should reopen its copper production as its cost is $1.95/lb.
Zinc and lead price recover well also, especially for lead, currently trade at 94c/lb, 87c/lb for zinc.
Technically, metal price remains in bottom up trend, if Zinc price can be increased to $1+/lb, KZL's asset should be close to book value.