Costerfield & antimonyAlso, just wanted to point out that the price of antimony is rising again as well -- it's up to 14,100/metric ton (USD), while just a couple months ago it was in the 11,000 - 12,000 range, which was already a 100% increase from a year or two ago.
Over all of 2021, antimony turned out to provide 30.5% of Costerfield's Au equivalent -- to figure this out, just look at the difference between Au production, and AU equivalent production. In Q4, Costerfield produced 13,397 gold ounces, but 19,507 AuEq ounces. When the price of gold and the price of antimony both go up together, then AuEq ounces stay about the same, even as profits increase. When the price of antimony goes up faster than gold, then both profits and AuEq ounces increase. It'll be interesting to see what Q1 production looks like . . .