Ora Banda Mining (ASX:OBM) declared an updated mineral resource estimate for its Waihi deposit and Round Dam trend in Western Australia, representing an increase of 1.5 million ounces from July 1, 2025, according to a Monday Australian bourse filing.
The company said the total mineral resource estimate stands at 54.8 million tonnes at 2 grams per tonne gold for 3.6 million ounces, with the Round Dam open pit resource increasing 964% to 1.3 million ounces and the Waihi open pit and underground resource increasing 114% to 482,000 ounces.
The total ore reserve estimate increased 136% to 7.8 million tonnes at 2.2 grams per tonne gold for 555,000 ounces, with cut-off grades based on gold price assumptions of AU$2,500 per ounce for the Waihi underground ore reserve and AU$3,600 per ounce for Round Dam high-grade material, the company said.
Recent drilling at Round Dam is pending assay results and has not been included in the current estimates, with results expected to be incorporated in the annual resources and reserves update for Round Dam, Riverina, and Sand King scheduled for the fourth quarter of fiscal 2026, it added.