![David Sproule](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
David Sproule
Chairman at
POLYMETALS RESOURCES LTD
Net worth: 39 M $ as of 29/06/2026
Profile
David William Sproule was the founder of Polymetals Mining Ltd. (founded in 1986) where he served as the Non-Executive Chairman from 1986 to 2013.
He is currently the Executive Chairman of Polymetals Resources Ltd. (since 2020), the Non-Executive Chairman of Golden Guinea Resources SARL, and a Member of the Australasian Institute of Mining & Metallurgy.
In his former positions, he was the Chief Executive Officer, MD & Executive Director of Marda Operations Pty Ltd. (2013-2015), an Independent Non-Executive Director of Critical Resources Ltd. (2020-2021), and a Non-Executive Director of Kin Mining NL (2017-2018).
Mr. Sproule obtained an undergraduate degree from the Western Australian School of Mines.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 05/03/2026 | 73,125,100 ( 23.78% ) | 39 M $ | 29/06/2026 |
David Sproule active positions
| Companies | Position | Start |
|---|---|---|
| POLYMETALS RESOURCES LTD | Chairman | 29/09/2020 |
Australasian Institute of Mining & Metallurgy
 Australasian Institute of Mining & Metallurgy Miscellaneous Commercial ServicesCommercial Services Provides services to professionals engaged in all facets of the global resources sector | Corporate Officer/Principal | 24/05/2011 |
Golden Guinea Resources SARL
 Golden Guinea Resources SARL Precious MetalsNon-Energy Minerals Provides gold exploration services | Chairman | - |
Former positions of David Sproule
| Companies | Position | End |
|---|---|---|
| CRITICAL RESOURCES LIMITED | Director/Board Member | 03/02/2021 |
| PATRONUS RESOURCES LIMITED | Director/Board Member | 27/02/2018 |
| BLACK OAK MINERALS LTD | Chief Executive Officer | 31/10/2015 |
Polymetals Mining Ltd.
 Polymetals Mining Ltd. Precious MetalsNon-Energy Minerals Engages in the acquisition, exploration, development and operation of precious and base metals resource projects | Founder | 31/12/2012 |
Training of David Sproule
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
78
1st degree connections
8
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 8 |
|---|---|
Australasian Institute of Mining & Metallurgy
Australasian Institute of Mining & Metallurgy Miscellaneous Commercial ServicesCommercial Services Provides services to professionals engaged in all facets of the global resources sector | Commercial Services |
Marda Operations Pty Ltd.
 Marda Operations Pty Ltd. Precious MetalsNon-Energy Minerals Explores and develops gold and nickel | Non-Energy Minerals |
Critical Resources Ltd.
 Critical Resources Ltd. Other Metals/MineralsNon-Energy Minerals Explores and develops lithium, zinc, lead, copper, silver & gold | Non-Energy Minerals |
Polymetals Mining Ltd.
Polymetals Mining Ltd. Precious MetalsNon-Energy Minerals Engages in the acquisition, exploration, development and operation of precious and base metals resource projects | Non-Energy Minerals |
Patronus Resources Ltd.
 Patronus Resources Ltd. Precious MetalsNon-Energy Minerals Mines for gold, silver and other metals | Non-Energy Minerals |
Western Australian School of Mines
 Western Australian School of Mines Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Polymetals Resources Ltd.
 Polymetals Resources Ltd. Precious MetalsNon-Energy Minerals Engages in exploration of gold reserves | Non-Energy Minerals |
Golden Guinea Resources SARL
Golden Guinea Resources SARL Precious MetalsNon-Energy Minerals Provides gold exploration services | Non-Energy Minerals |
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