![Robert Middlemas](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>)
Net worth: 260 800 $ as of 31/07/2026
Robert Samuel Middlemas is currently Chief Executive Officer & Secretary at Australian Silica Quartz Group Ltd. since 2015.
Current roles also include Secretary at Ardea Resources Ltd. since 2022, Member of the Australian Institute of Co. Directors, and Associate Member of The Institute of Chartered Accountants in Australia.
Former positions include Independent Non-Executive Director at Kore Potash Ltd. from 2010 to 2016; Chief Financial Officer & Secretary at RBR Group Ltd. (Australia) from 2015 to 2016; Secretary at Pacific Energy Ltd., StreamPlay Studios Ltd., Manhattan Gold Corp.
Ltd. in 2009, and Godolphin Resources Ltd. from 2019 to 2020; Secretary at Sphere Minerals Pty Ltd. from 2008 to 2010; Acting Chief Financial Officer & Secretary at Berkeley Energia Ltd. in 2011; Chief Financial Officer & Secretary at Altech Batteries Ltd. in 2011; Chief Financial Officer & Secretary at Enterprise Metals Ltd. from 2016 to 2018; Chief Financial Officer & Secretary at Alto Metals Ltd. from 2016 to 2018.
Education includes undergraduate studies at The University of Western Australia.
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 30/06/2025 | 8,73,701 ( 0.4% ) | 260 800 $ | 31/07/2026 |
| Companies | Position | Start |
|---|---|---|
| AUSTRALIAN SILICA QUARTZ GROUP LTD. | Chief Executive Officer | 21/10/2015 |
| ARDEA RESOURCES LIMITED | Corporate Secretary | 20/10/2016 |
Australian Institute of Co. Directors
 Australian Institute of Co. Directors Miscellaneous Commercial ServicesCommercial Services Promotes governance and develops leadership skills | Corporate Officer/Principal | - |
The Institute of Chartered Accountants in Australia | Corporate Officer/Principal | - |
| Companies | Position | End |
|---|---|---|
| ORBIT RESOURCES LIMITED | Corporate Secretary | 21/01/2020 |
| ALTO METALS LIMITED | Director of Finance/CFO | 28/02/2018 |
| ENTERPRISE METALS LIMITED | Director of Finance/CFO | 28/02/2018 |
| RBR GROUP LIMITED | Director of Finance/CFO | 29/11/2016 |
| MANHATTAN GOLD CORPORATION LIMITED | Director of Finance/CFO | 28/09/2016 |
Active
Inactive
Listed companies
Private companies
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
| Private companies | 16 |
|---|---|
Kore Potash Ltd.
 Kore Potash Ltd. Other Metals/MineralsNon-Energy Minerals Explores mines for potash and other minerals | Non-Energy Minerals |
RBR Group Ltd. (Australia)
 RBR Group Ltd. (Australia) Personnel ServicesCommercial Services Provides labor, training and professional services | Commercial Services |
Pacific Energy Ltd.
 Pacific Energy Ltd. Electric UtilitiesUtilities Produces sustainable distributed energy | Utilities |
StreamPlay Studios Ltd.
 StreamPlay Studios Ltd. Packaged SoftwareTechnology Services Develops and operates eSports tournament platform on smartphones, tablets and consoles | Technology Services |
Sphere Minerals Pty Ltd.
 Sphere Minerals Pty Ltd. SteelNon-Energy Minerals Explores and mines iron ores | Non-Energy Minerals |
Berkeley Energia Ltd.
 Berkeley Energia Ltd. Other Metals/MineralsNon-Energy Minerals Operates as a uranium exploration and development company | Non-Energy Minerals |
The University of Western Australia
 The University of Western Australia Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Australian Institute of Co. Directors
Australian Institute of Co. Directors Miscellaneous Commercial ServicesCommercial Services Promotes governance and develops leadership skills | Commercial Services |
Australian Silica Quartz Group Ltd.
 Australian Silica Quartz Group Ltd. Other Metals/MineralsNon-Energy Minerals Engages in the acquisition, exploration and development of bauxite, alumina and aluminum ores | Non-Energy Minerals |
Enterprise Metals Ltd.
 Enterprise Metals Ltd. Precious MetalsNon-Energy Minerals Engages in the exploration of gold, uranium and iron ore tenements | Non-Energy Minerals |
Manhattan Corp. Ltd.
 Manhattan Corp. Ltd. Precious MetalsNon-Energy Minerals Explores for gold and uranium | Non-Energy Minerals |
The Institute of Chartered Accountants in Australia | |
Altech Batteries Ltd.
 Altech Batteries Ltd. Chemicals: SpecialtyProcess Industries Provides silica processing and mineral exploration services | Process Industries |
Alto Metals Ltd.
 Alto Metals Ltd. Precious MetalsNon-Energy Minerals Operates as a gold exploration company | Non-Energy Minerals |
Ardea Resources Ltd.
 Ardea Resources Ltd. Other Metals/MineralsNon-Energy Minerals Engages in the exploration and mining of gold and nickel | Non-Energy Minerals |
Godolphin Resources Ltd.
 Godolphin Resources Ltd. Precious MetalsNon-Energy Minerals Explores gold and copper | Non-Energy Minerals |
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