copper to surge on 'mammoth demand' -, page-40

Further to my previous post you can see the upward trajectory of worldwide inventories here:

http://www.investmenttools.com/futures/metals/welcome_to_the_page_about_copper_futures.htm


here is a graph:

As you can see there have been dips, but overall the patter has trended upwards as have prices. Inventories and prices cannot rise forever. Also these graphs don't consider any unreported copper stockpiles.

Here's another looking at stockpiles in Shanghai: