Metal movements - Cu, Zn, Sn

The zinc story is known, tin to some degree although mostly ignored. In May, tin was sold down as longs removed their positions.
But where is Dr Copper? I see it based at least... A rebound in 2017? 2018??? It really depends on the world markets and I see a number of factors helping the situation...
1. Brexit or rather a Beremain,
2. Trump or rather Clinton.
3. US, Japan & European rates/finance.
4. China

In local markets, a stable government with a clear mandate would be nice... Okay, I do like to dream.

Anyway, check out the charts below, remembering they are in US dollars. Also note that tin stocks have dropped to 6.5k since the start of June.

Enjoy.

Metal report - May