Oct 21 (Reuters) - Cobalt Blue Holdings Ltd COB.AX :
* COBALT BLUE HOLDINGS LTD - HAS ENTERED INTO A TESTWORK CO-OPERATION AGREEMENT WITH OZ MINERALS LIMITED
* COBALT BLUE HOLDINGS LTD - TESTWORK WILL EVALUATE APPLICATION OF COB TECHNOLOGY TO RECOVER COBALT, COPPER AND GOLD FROM A PYRITE CONCENTRATE