Shares of Intrepid Mines (IAU) Ltd gain only 1.25% Tuesday (Oct 9) on ASX despite significant copper and gold upgrade for the Tumpangpity prospect in the Tujuh Bukit gold project, Banyuwangi, East Java. With the upgrade, Tujuh Bukit has copper and gold reserves twice the size of Batu Hijau mine operated by Newmont Nusa Tenggara.

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