TGB is my largest copper holding
I also own:
ARREF (which has a dividend)
ASCUF (very speculative, not yet a producer)
HHLKF ("Hot Chile" copper. Not yet producing, but possibly a good resource)
FQVLF (first quantum: producing)
CSCCF (Capstone: I sold most of this one too early)
The following stocks in my portfolio produce copper, but not as their main output
FCX (copper is a decent fraction of output)
NGLOY (world's largest platinum producer, but has a decent amount of copper)
GLNCY (copper is only a small fraction of its output)
VALE (copper is only 4% of output--biggest iron order producer in the world)