Jan 012026
Projects
[TEMPLATE] Project launch or milestone
Reserved slot. Each article can be linked to a subsidiary and a sector to feed the relevant pages automatically.
CONTINUUM
Building
the Africa
that comes next.
EnergyAgro-industryMiningExploration
01 — ORIGIN : Everything begins with matter.
02 — ENERGY : Powering movement.
03 — AGRO : Feeding growth.
04 — MINING : Extracting value.
05 — MINERALS : Discover what lies beneath.
06 — SYSTEM : Energy × Agro × Mining × Minerals
07 — AFRICA : Built here. Built for what comes next.
08 — SEMEGA : Transform. Connect. Build.
The Group
One group. Multiple strengths. One ambition.
GROUPE SEMEGA brings together companies operating in strategic sectors for African development: energy and hydrocarbons, agro-industry, mining operations, resource exploration, transport, logistics and industrial development.
Each subsidiary has its own trade, standards and operational culture. Together, they form an integrated chain.
Discover the groupMessage from the Chairman & CEO
M. Oumar Abdoulaye Diane Semega
Chairman & Chief Executive Officer — GROUPE SEMEGA
« We do not merely build mining operations. We build the trust that allows territories, talents and industries to move forward together. »
The Industrial Pledge
« Transforming potential into performance. Performance into legacy. »
Presidency & Subsidiary Leadership
CHALLENGE CORPORATES(Chairman & CEO)DIANE OIL(General Management & Strategy)DIANE AGRO(General Management & Development)RICHLAND MINERALS(General Management & Exploration)
Our Companies
Operational brands, a shared standard.
DIANE OIL
ENERGY · FILIALE DU GROUPEEnergy & Logistics
Fuelling movement.
The group’s energy arm, DIANE OIL operates across petroleum product supply and the logistics corridors that carry them to inland markets.
EnergyHydrocarbonsImportDistribution
450 000 m³Annual volumes
65 000 m³Storage capacity
120 citernesLogistics fleet
DIANE AGRO
AGRO · FILIALE DU GROUPEAgro-industry
Feeding growth.
DIANE AGRO spans poultry, crop farming, fish farming and animal feed, through to packaging and product distribution.
PoultryCrop farmingFish farmingAnimal feed
2.5M têtes/anPoultry production
8 sitesIntegrated farms
350+ postesDirect jobs
CHALLENGE CORPORATES
MINING · FILIALE DU GROUPEMining & Heavy Logistics
Extracting value.
CHALLENGE CORPORATES operates across mining sites and heavy logistics: extraction, transport, equipment, machinery and workplace safety.
Mining operationsExtractionHeavy transportLogistics
18.5M m³Mined volume / yr
85 unitésHeavy fleet
4 sitesActive mine sites
RICHLAND MINERALS
MINERALS · FILIALE DU GROUPEMineral Exploration
Exploring potential.
RICHLAND MINERALS works upstream of the mining chain: research, exploration and assessment of mineral potential in West Africa.
Mineral explorationResearchMining developmentMineral resources
7 permisExploration permits
45 000 mMetres drilled
Or · Li · BxTarget commodities
Our Impact
Creating value. Here. Now. For the long term.
The value of an industrial group is not measured by volumes alone. It is measured by what it leaves behind.
4Diversified groupFour operating companies
6Strategic sectorsSix domains covered
12+African presence12 West African countries & corridors
1500+Talent & PartnersOver 1,500 direct and indirect jobs
Our Projects
Projects that build tomorrow.
Active
Securing energy supply
Mali — West African corridors
Import and distribution of petroleum products to industrial, mining and professional customers, relying on the corridors connecting Atlantic ports to the domestic market.
450 000 m³Annual volumes
65 000 m³Storage capacity
120 citernesDedicated fleet
Active
Integrated poultry chain
Mali
A complete chain linking feed production, farming, packaging and distribution, in order to reduce dependence on imported protein.
2 500 000 têtes/anProduction capacity
8 fermesFarming sites
350 postesDirect jobs
In development
Inland aquaculture development
Mali
Structuring a fish farming chain built on in-house feed production, water quality control and an unbroken cold chain through to point of sale.
1 200 tonnes/anTarget capacity
T3 2026Commissioning
32 bassinsPonds developed
Active
Contract mining operations
Mali — West Africa
Operating services on mine sites: stripping, extraction, loading, hauling and material management, with dedicated fleet and teams.
18 500 000 m³Volumes moved
85 unitésMachines deployed
4 minesActive sites
In development
Scaling heavy logistics capacity
West African corridors
Extending heavy transport resources and workshop capacity to improve fleet availability and shorten equipment delivery times.
3 ateliersTechnical centers
240 tonnesConvoy capacity
95 unitésHeavy vehicles
In development
Mineral exploration campaigns
West Africa
Mapping, geochemical prospecting and drilling work to assess the mineral potential of areas of interest, ahead of any development prospect.
7 permisActive permits
45 000 mMetres drilled
Or, Lithium, BauxiteTarget commodities
News
What's moving in the group.
Jan 012026
Operations
[TEMPLATE] Operational milestone at a subsidiary
Reserved slot. Subsidiary news can be syndicated from their own sites or entered in the back office.
Jan 012026
Press release
[TEMPLATE] Group press release headline
Reserved slot for the article standfirst. Actual content will be supplied by the group’s communications team.
Careers
Build the future with us.
Build the future with us.
We are looking for operational, technical and industrial profiles capable of maintaining a high standard of execution, in the field and at headquarters.