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Cordoba Minerals appoints Michael Waldkirch as interim CFO following Peter Portka's departure

Company Fundamentals
21 Sep 2026
Newsfile Corp
View Source
Neutral
Cordoba Minerals appoints Michael Waldkirch as interim CFO following Peter Portka's departure

Cordoba Minerals announced the departure of Peter Portka as CFO and VP of Corporate Development, effective September 21, 2026. Michael Waldkirch, a seasoned CPA with extensive experience in public mining companies, has been appointed interim CFO. This leadership change comes as Cordoba advances its Perseverance Copper Project in Arizona. The company expressed gratitude to Portka and looks forward to Waldkirch's contributions in identifying new opportunities and supporting ongoing projects.

Cordoba Minerals' executive changes coincide with a Basic Materials sector breadth of 16 stocks rising and 14 falling among 34 priced US stocks on Pluang. For readers following Basic Materials, here is Pluang's market snapshot as of Sep 21, 2026 17:11 WIB: BHP Billiton Limited (BHP) rose 1.03% to USD 87.16 with a typical hold time of 141 days, Rio Tinto (RIO) increased 0.90% to USD 98.25 with a 5-day hold time, and Vale SA (VALE) gained 0.84% to USD 14.33 with a typical hold time of 108 days.

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