Sun Silver IPO, page-50

It's all done manually, from company releases etc.

With regards to what's readily available from online sources a little warning. Someone on the SS1 thread posted a link to a newsletter written by an ipo investor for SS1 and they provided a graph showing peers and their silver equivalent ounces. Not sure if they created the graphs themselves or got it from other sources but at least 3 of the companies on the graph were misrepresented by quite a margin.

The moral of the story is look at the information supplied by all means but verify the information before acting on it.