I called up IB, and SLV doesn't issue a K-1.
Here is some information.
http://commodityhq.com/2012/the-complete-list-of-commodity-etfs-that-issue-a-k-1/
Here is some information.
http://commodityhq.com/2012/the-complete-list-of-commodity-etfs-that-issue-a-k-1/