Michael Schlumpberger

Chief Operating Officer at MIDWEST LITHIUM LIMITED

Net worth: 217 588 $ as of 2026-07-30

63 year

Non-Energy Minerals

Consumer Services

Profile

Michael Xavier Schlumpberger currently serves as Non-Executive Director at Rapid Critical Metals Ltd. since 2025, Independent Non-Executive Director at Guardian Metal Resources Plc since 2025, Chief Operations Officer at Midwest Lithium Ltd., and Co-Manager at Golden Metal Resources LLC.
Former roles include Chief Executive Officer, Director & MD at American Pacific Borates Ltd. from 2017 to 2021, Chief Executive Officer at Fort Cady (California) Corp., Chief Operating Officer at Passport Potash, Inc., and Executive General Manager-Operations at Highfield Resources Ltd. Education includes an undergraduate degree from the University of Missouri in 1985 and an MBA from East Carolina University.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
RAPID CRITICAL METALS LIMITED 0.84%	2024-12-30	10,099,373 ( 0.84% )	212 794 $	2026-07-30
GUARDIAN METAL RESOURCES PLC 0%	2026-07-16	2,500 ( 0% )	4 794 $	2026-07-30

Michael Schlumpberger active positions

Companies	Position	Start
MIDWEST LITHIUM LIMITED	Chief Operating Officer	-
RAPID CRITICAL METALS LIMITED	Director/Board Member	2024-11-03
GUARDIAN METAL RESOURCES PLC	Director/Board Member	2025-11-10

All active positions of Michael Schlumpberger

Former positions of Michael Schlumpberger

Companies	Position	End
American Pacific Borates Ltd. American Pacific Borates Ltd. Other Metals/MineralsNon-Energy Minerals Produces borate and lithium	Chief Executive Officer	2021-04-27
HIGHFIELD RESOURCES LIMITED	Chief Operating Officer	2017-04-30
Fort Cady (California) Corp. Fort Cady (California) Corp. Other Metals/MineralsNon-Energy Minerals Engages in exploration of boron & lithium mines	Chief Executive Officer	-
PASSPORT POTASH INC	Chief Operating Officer	-

See the detail of Michael Schlumpberger's experience

Training of Michael Schlumpberger

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

See the detail of Michael Schlumpberger's experience

Connections

1st degree connections

1st degree companies

Male

Female

Members of the board

Executives

See the personal network

Linked companies

Private companies	9
Passport Potash, Inc. Passport Potash, Inc. Other Metals/MineralsNon-Energy Minerals Engages in exploration and development of potash properties	Non-Energy Minerals
University of Missouri University of Missouri Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
East Carolina University East Carolina University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Highfield Resources Ltd. Highfield Resources Ltd. Other Metals/MineralsNon-Energy Minerals Engages in mining and exploration of potash properties	Non-Energy Minerals
American Pacific Borates Ltd. American Pacific Borates Ltd. Other Metals/MineralsNon-Energy Minerals Produces borate and lithium	Non-Energy Minerals
Fort Cady (California) Corp. Fort Cady (California) Corp. Other Metals/MineralsNon-Energy Minerals Engages in exploration of boron & lithium mines	Non-Energy Minerals
Armada Metals Ltd. Armada Metals Ltd. Other Metals/MineralsNon-Energy Minerals Operates as mineral exploration company	Non-Energy Minerals
Golden Metal Resources Plc Golden Metal Resources Plc Other Metals/MineralsNon-Energy Minerals Engages in mineral mining and exploration activities	Non-Energy Minerals
Midwest Lithium Ltd. Midwest Lithium Ltd. Other Metals/MineralsNon-Energy Minerals Engages in exploration of hard rock lithium	Non-Energy Minerals