- Cameroon
- Coordinateur de la recherche minière et Marketing
- Mining doc
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Marcial has been qualified at the following categories
- Mining Operations (82 points) Teacher
- General Information (14 points) Beginner
- Geology (7 points)
- Mining Industry Research (5 points)
- Mining Engineering (4 points)
- Mining Finance and Economy (1 point)
- Mining Sustainability (1 point)
- Mining Technology Solutions (1 point)