MineralFields Looks Like They Hold Shares for More Than a Year.
Their letters to investors can be found on their website under "Performance (NAVS) & Portfolios". Select the 2007 and earlier funds and read the dissolution letters. You will see they are all dated 18 to 24 months after closing of the funds (in December).
E.g. http://mineralfields.com/navs3.cfm?Min=MIN701
Cheers,
Baires