We are a primary zinc-gold mine with other minerals including silver, copper, and lead. However, the ore body happens to be in sulfide-bearing rock.

The term “sulfide mining” is slang, not a scientific definition or classification of mining. It is a term used by mining opponents to elicit concern and to confuse people into thinking that a mining company is producing something other than the base minerals needed by society, like zinc, nickel, cobalt, gold, and other essential raw materials. These metals occur naturally as sulfide-bearing mineral groups. When present in sufficient amounts they form a minable mineral deposit like the Back Forty. Most of the metals that we use in society today come from mineral deposits containing sulfide. There is no basis for describing zinc, copper or any other mineral mine as a sulfide mine.