Jan 22 (Reuters) - Highfield Resources Ltd HFR.AX :
* PROVED AND PROBABLE ORE RESERVE ESTIMATE OF 108.7 MILLION TONNES AT 10.2% K2O FOR MUGA POTASH PROJECT
* PROVED ORE RESERVE ESTIMATE OF 42.9 MILLION TONNES AT 10.2% K2O FOR CO'S FLAGSHIP MUGA POTASH PROJECT