Success Stories
Turning vision into reality — global projects, sustainable impact.
At Rotehügels, we don’t just advise — we execute. Our projects span research pilots, feasibility studies, and full-scale plants. Here’s one of our flagship success stories.
Swarna Metals Zambia Limited — A Greenfield Copper Project
In Zambia’s Copperbelt, Rotehügels supported the design and commissioning of a $30M greenfield hydrometallurgical copper plant — a first-of-its-kind model blending sustainability with production scale.
Scope
Commissioned a facility processing 1,200 MT/day of ore.
Two-stage flowsheet: flotation → concentrate; leach + SX–EW → cathode.
Innovation
Flexible design for mixed sulphide–oxide ores, adaptive reagent schemes to handle impurities (As, Pb, Sb), and by-product recovery opportunities (Ag, Ni, Co).
Sustainability
Onsite reservoir for water security and a thickener–clarifier system recycling >50% process water.
Circular economy built into design from day one.
Impact
- ~40 MT/day concentrate @ 25% Cu
- ~10 MT/day copper cathode
- 200+ direct jobs, 2,000+ indirect beneficiaries
- Commissioned in just 7 months
Looking Ahead
Swarna Metals Zambia stands as proof of how Rotehügels bridges research, execution, and sustainability. From here, we continue to scale new greenfield projects, recycling initiatives, and digital-first platforms worldwide.