![John F. MacKenzie](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>)
John F. MacKenzie
Chairman at
CAPSTONE COPPER CORP.
Net worth: 83 M $ as of 2026-04-29
Profile
John F.
MacKenzie is the founder of Mantos Copper SA, established in 1955, where the title held is Chief Executive Officer & Director.
Current jobs include Chairman at Gold Fields Ltd. starting in 2026, Chairman at Capstone Copper Corp.
starting in 2025, Independent Non-Executive Director at Horizonte Minerals Plc starting in 2023, and Director at Mantoverde SA (Chile).
Former jobs include Chief Executive Officer-Copper at Anglo American Plc from 2009 to 2013 and Independent Non-Executive Director at KAZ Minerals Ltd. Education history includes an undergraduate degree from the University of the Witwatersrand in 1989, a graduate degree from the University of the Witwatersrand in 1993, and a graduate degree from the University of South Africa in 2000.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-05-11 | 10,000,040 ( 1.31% ) | 83 M $ | 2026-04-29 |
John F. MacKenzie active positions
| Companies | Position | Start |
|---|---|---|
| CAPSTONE COPPER CORP. | Chairman | 2025-05-01 |
| HORIZONTE MINERALS PLC | Director/Board Member | 2023-07-10 |
| GOLD FIELDS LIMITED | Chairman | 2026-05-24 |
Mantos Copper SA
 Mantos Copper SA Other Metals/MineralsNon-Energy Minerals Engages in mining, extracting and sale of copper | Founder | 1954-12-31 |
Mantoverde | Director/Board Member | - |
Former positions of John F. MacKenzie
| Companies | Position | End |
|---|---|---|
| ANGLO AMERICAN PLC | Corporate Officer/Principal | 2012-12-31 |
| KAZ MINERALS | Director/Board Member | - |
Training of John F. MacKenzie
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
75
1st degree connections
9
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 9 |
|---|---|
Anglo American Plc
 Anglo American Plc Other Metals/MineralsNon-Energy Minerals Explores and mines precious base & ferrous metals | Non-Energy Minerals |
KAZ Minerals Ltd.
 KAZ Minerals Ltd. Other Metals/MineralsNon-Energy Minerals Engages in copper mining | Non-Energy Minerals |
Horizonte Minerals Plc
 Horizonte Minerals Plc Other Metals/MineralsNon-Energy Minerals Engages in exploration and development of nickel-cobalt metals | Non-Energy Minerals |
Gold Fields Ltd.
 Gold Fields Ltd. Precious MetalsNon-Energy Minerals Provides gold and copper exploration and mining services | Non-Energy Minerals |
University of the Witwatersrand
 University of the Witwatersrand Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
University of South Africa
 University of South Africa Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Mantos Copper SA
Mantos Copper SA Other Metals/MineralsNon-Energy Minerals Engages in mining, extracting and sale of copper | Non-Energy Minerals |
Mantoverde | |
Capstone Copper Corp.
 Capstone Copper Corp. Other Metals/MineralsNon-Energy Minerals Provides copper, gold, silver and molybdenum mining services | Non-Energy Minerals |
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