
Extract.
Build.
Deliver.
Since 2011, STIS has run its own dredgers and equipment fleet — from sand extraction to civil engineering, in Douala and beyond.



What we do
Three pillars: the sand we extract and sell, the logistics that deliver it, the trade around it.
Sand & aggregates
Our core business — we sell the sand we extract with our own dredgers. Gravel, all-in aggregate, backfill: delivered to your site.
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Transport & logistics
Sea and land transport — your logistics end to end, equipment and aggregates included.
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International trade
We import for you — machines, equipment, goods — and we represent foreign suppliers on the ground in Douala.
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Earthworks & backfill
Excavation, levelling, backfill — site preparation.
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Construction & civil
Buildings, foundations, culverts — from study to handover.
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Steel structures
Steel sheds, roofs and frames, assembled on your site.
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Sanitation
Wastewater, drainage and infiltration works.
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Sand extraction, our origin.
STIS is among the first to run its own dredgers in Cameroon. We master the whole chain — extraction, backfilling, delivery of quality aggregates — for every stage of your projects.
An integrated company — our dredgers, our tipper-truck fleet, our equipment yard. We deliver not just 'sand', but the exact grade your site requires.
Built on the ground since 2011.
STIS brings sand extraction, transport, civil engineering and trade together in one Cameroonian company — the means and expertise to carry each project through.
Meet STIS →Projects
Sites, equipment, structures — a glimpse of delivered work.




