Zimbabwe’s government has given foreign companies including miners and banks a 14-day ultimatum to submit plans on how they propose to transfer majority stakes to local owners or risk losing permits. A number of mining companies, including Rio Tinto and Impala Platinum (a South African company with a secondary listing on the London Stock Exchange) were sent letters.
See http://www.mining.com/2011/08/19/zimbabwe-gives-mines-14-day-deadline-to-hand-over-majority/.