Manuka Resources (ASX:MKR, NZE:MKR) reported an increase of 28% in ore reserve tonnes and a 15% jump in contained silver for its Wonawinta mine in New South Wales compared with the ore reserve disclosed in May 2025, according to a Monday filing with the Australian bourse.
The updated probable ore reserve stood at 7.9 million tonnes at 50.4 grams per tonne (g/t) grade of silver containing 12.8 million ounces of silver, per the filing.
The Wonawinta mineral resource remains at 38.3 million tonnes at 41.3 g/t silver containing 51 million ounces of silver, the company said.
Manuka Resources plans to restart silver and gold processing operations at Wonawinta in the current quarter.
The company's Australian shares fell past 3% in recent Monday trade, while its New Zealand shares shed nearly 3%.
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