![Calvyn Gardner](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>)
Calvyn Gardner served as the Chief Executive Officer & Director at Margaux Red Capital, Inc., Chief Executive Officer at Trans Hex Group Ltd., and Chief Executive Officer & Director at Sigma Lithium Resources, Inc. He also served as the Co-Chairman & Co-Chief Executive Officer at Sigma Lithium Corp.
from 2021 to 2023 and as the General Manager-Operations at Evraz Highveld Steel & Vanadium Ltd. Mr. Gardner completed his undergraduate degree at the University of the Witwatersrand and earned an MBA from the University of South Africa.
| Företag | Position | Slut |
|---|---|---|
| TRANS HEX GROUP LIMITED | Verkställande Direktör | - |
| EVRAZ HIGHVELD STEEL AND VANADIUM LTD | Verksamhetschef | - |
Margaux Red Capital, Inc.
 Margaux Red Capital, Inc. Financial ConglomeratesFinance Operates as a capital pool company | Verkställande Direktör | - |
| SIGMA LITHIUM CORPORATION | Verkställande Direktör | 2023-01-23 |
Sigma Lithium Resources, Inc.
 Sigma Lithium Resources, Inc. Other Metals/MineralsNon-Energy Minerals Engages in lithium production | Verkställande Direktör | - |
Aktiva
Inaktiva
Börsnoterade företag
Privata företag
| Privata företag | 7 |
|---|---|
Evraz Highveld Steel & Vanadium Ltd.
 Evraz Highveld Steel & Vanadium Ltd. SteelNon-Energy Minerals Manufactures steel vanadium products | Non-Energy Minerals |
Margaux Red Capital, Inc.
Margaux Red Capital, Inc. Financial ConglomeratesFinance Operates as a capital pool company | Finance |
Trans Hex Group Ltd.
 Trans Hex Group Ltd. Other Metals/MineralsNon-Energy Minerals Engages in exploration, mining and marketing of diamonds | 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 |
Sigma Lithium Resources, Inc.
Sigma Lithium Resources, Inc. Other Metals/MineralsNon-Energy Minerals Engages in lithium production | Non-Energy Minerals |
Sigma Lithium Corp.
 Sigma Lithium Corp. Other Metals/MineralsNon-Energy Minerals Provides lithium mining services | Non-Energy Minerals |
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