Jan 4 (Reuters) - Sienna Resources Inc SIE.V :
* SIENNA RESOURCES INC PROPOSES TO INCREASE PLACEMENT UP TO $2.5 MILLION FOR COBALT PROJECT DEVELOPMENT
* SIENNA RESOURCES - PRIVATE PLACEMENT TO NOW CONSIST OF UP TO 12.5 MILLION UNITS AT 20 CENTS PER UNIT FOR GROSS PROCEEDS OF UP TO $2.5 MILLION