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Silver Bull Heightens Focus on Zinc with New Sierra Mojada Resource Report

Silver Bull Resources released an updated NI 43-101 resource report for its Mexico-based Sierra Mojada project on Monday. There were two aims in creating the updated report: "bring[ing] all of the known zinc mineralization into the story for the first time, and updat[ing] the silver resource using prices applicable to the current market conditions."

Heron Resources Reports 46 Percent IRR in Woodlawn PEA

On Thursday, dual-listed Heron Resources released a PEA for its Woodlawn zinc-copper project in New South Wales, Australia, and the results are positive to say the least. The mine is anticipated to garner initial capital costs of AU$140 million for a post-tax NPV of $300 million and an IRR of 46 percent with a payback period of two years.