Siegfried Weidner

Director/Board Member at MUNDORO CAPITAL INC.

Net worth: - $ as of 30/06/2026

Non-Energy Minerals

Miscellaneous

Profile

Siegfried Otto Weidner is currently Independent Director at Mundoro Capital, Inc. since 2025 and President of Marienberg Minerals Ltd. Former positions include Director at Williams Creek Gold Ltd., Manager-North America & Europe Operations at Rio Algom Ltd., Vice President-Exploration at Guerrero Ventures, Inc., Vice President-Exploration at ValOro Resources, Inc. from 2006 to 2013, Manager-Operations at BHP Group (UK) Ltd. from 2001 to 2003, and Explorations Manager-Operations North America at BHP Canada, Inc.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
MUNDORO CAPITAL INC. -.--%	28/04/2026	0 ( -.--% )	- $	30/06/2026

Siegfried Weidner active positions

Companies	Position	Start
MUNDORO CAPITAL INC.	Director/Board Member	14/07/2025
Marienberg Minerals Ltd.	President	-

All active positions of Siegfried Weidner

Former positions of Siegfried Weidner

Companies	Position	End
VALORO RESOURCES INC	Corporate Officer/Principal	15/05/2013
BHP GROUP PLC	Corporate Officer/Principal	01/01/2003
BHP Canada, Inc. BHP Canada, Inc. SteelNon-Energy Minerals Explores iron, copper, steel, nickel, zinc and other natural resources	Corporate Officer/Principal	-
Williams Creek Gold Ltd. Williams Creek Gold Ltd. Precious MetalsNon-Energy Minerals Engages in gold exploration	Director/Board Member	-
GUERRERO VENTURES INC	Corporate Officer/Principal	-

See the detail of Siegfried Weidner's experience

Experiences
Positions held

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Inactive

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Private companies

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Connections

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Linked companies

Private companies	8
Rio Algom Ltd. Rio Algom Ltd. Precious MetalsNon-Energy Minerals Explores mines for gold, copper and coal	Non-Energy Minerals
Guerrero Ventures, Inc. Guerrero Ventures, Inc. Other Metals/MineralsNon-Energy Minerals Engages in the acquisition, exploration and development of precious and base metal resources	Non-Energy Minerals
ValOro Resources, Inc. ValOro Resources, Inc. Precious MetalsNon-Energy Minerals Acquires, explores and develops mineral properties	Non-Energy Minerals
BHP Group (UK) Ltd. BHP Group (UK) Ltd. MiscellaneousMiscellaneous Functions as an investment holding company	Miscellaneous
Williams Creek Gold Ltd. Williams Creek Gold Ltd. Precious MetalsNon-Energy Minerals Engages in gold exploration	Non-Energy Minerals
Mundoro Capital, Inc. Mundoro Capital, Inc. Precious MetalsNon-Energy Minerals Engages in exploration and development of gold & copper mines	Non-Energy Minerals
BHP Canada, Inc. BHP Canada, Inc. SteelNon-Energy Minerals Explores iron, copper, steel, nickel, zinc and other natural resources	Non-Energy Minerals
Marienberg Minerals Ltd.