Tyranna Resources has defined an updated mineral resource of 762,000 tonnes grading 1.8 grams per tonne gold, or 43,100 contained ounces, below the existing open pit at its Eureka gold project near Kalgoorlie. The resource remains open along strike to the north, south and at depth. The company plans to carry out near mine drilling, starting with the southern mining leases, to test for the mineralised potential.