If you are interested, here are some details of RIO:
http://www.riotinto.com/investors/shareholder-structure-4942.aspx
and BHP:
http://www.bhpbilliton.com/home/aboutus/ourcompany/Pages/ourStructure.aspx
Each have multiple listings, both dual listings and cross listings.
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- ASX - By Stock
- US listing, what happens then?