They've always been a copper company (with a side order of Moly).
Silver is frequently found with copper, but they've never said anything about it in their quarterly reports.
Never seen any mention of a by-product credit for silver, lead or zinc either, which is kind of a surprise since they are also frequently found with copper.
I've been away for 3 years, but I don't think anything is different.
If you have any reference to income from silver production I'd be VERY interested to see it !