Tanzania's Lake Zone produces the majority of the country's gold, and its centre of gravity is Mwanza — a city of well over a million people on the southern shore of Lake Victoria, ringed by mines at Geita, Bulyanhulu, Buzwagi, North Mara and a constellation of medium-scale operations. Every one of those mines moves ore, waste and supplies by truck, and the contract hauliers who serve them run some of the hardest duty cycles in East Africa: laterite roads that dissolve in the rains, payloads pushed to the legal ceiling, and distances that cluster in the magic band for electric drivetrains — 20 to 80 km loops.
Two Dongfeng EV trucks fit the Lake Zone like no others: the TZ3Z 8x4 electric dump truck — CATL 400 kWh LFP, 510 kW motor, 55 t GCW — and the TZ5E 6x4 electric dump truck — CATL 400 kWh, 25 t GVW. Both are factory RHD, which Tanzania requires. We covered the wider East African market in previous pieces; this article is the Mwanza playbook. Country-level import guidance is in the Tanzania market guide.
The freight universe of the gold belt splits into four streams, and electric trucks can take three of them immediately:
The supply leg favours the TZ5E with a curtain-side or box body: 25 t GVW, 400 kWh, and a rated 300 km range that covers Mwanza–Geita (roughly 100 km) with a full return on one charge. The ore and materials legs are TZ3Z territory.
Lake Zone hauliers will tell you their biggest costs are tyres, clutches and differentials. Wet-season laterite is traction hell: diesel trucks wheelspin out of loaded pits, cooking clutches and shredding drive-train components. Electric drivetrains attack this problem directly:
First, torque is controlled electronically. The TZ3Z's motor controller limits wheel slip torque-by-torque in a way no diesel clutch ever can, protecting both the driveline and the road surface. Second, there is no clutch to burn — single-speed reduction drives have no wear item equivalent. Third, regenerative braking means the friction brakes that would fade on muddy descents are barely used, cutting brake jobs by 60–70% versus diesel tippers on the same roads.
The result on comparable laterite duty elsewhere: maintenance cost per kilometre falls from roughly USD 0.12–0.15 on diesel 8x4 tippers to USD 0.05–0.07 on the TZ3Z. On 50,000 km/year that is another USD 3,500–4,000 saved per truck per year on top of the energy gap.
Mwanza's grid is fed by Tanzania's hydro-heavy generation system, and industrial tariffs sit near USD 0.10–0.13/kWh. TANESCO supply to mine-adjacent yards is workable, and mines themselves — as large power customers — can host chargers on their own connections.
| Metric (TZ3Z on ore duty, 45,000 km/yr) | Diesel 8x4 tipper | TZ3Z electric |
|---|---|---|
| Energy/fuel cost | USD 21,600 (0.48/km) | USD 6,300 (0.14/km) |
| Maintenance | USD 6,300 | USD 2,700 |
| Annual operating saving | — | USD 18,900 |
| CAPEX premium | — | USD 35,000–45,000 |
| Simple payback | — | 22–28 months |
For mine-adjacent hauliers with access to a mine's power agreement, tariffs can be lower still, pulling payback under two years. And because Lake Zone mines increasingly report Scope 3 emissions under international ownership, contract hauliers running electric trucks gain a genuine tender advantage — several East African mining groups now score contractor fleet emissions in procurement.
The Lake Zone's charging design is simpler than it looks because the geography is hub-and-spoke: everything routes through Mwanza or the mine gates.
A fleet of ten trucks — six TZ3Z on ore and materials, four TZ5E on supply — needs roughly USD 220,000–280,000 of charging infrastructure, which the fuel savings of the same fleet repay in under two years.
Mwanza is also a lake port — ferries and freighters link it to Bukoba, Musoma and the Ugandan and Kenyan shores of Lake Victoria. Dock logistics, fish processing supply (the lake's sardine and Nile perch economy is enormous) and city distribution are all KT5M-and-TZ5E-class work that can ride on the same depot. An operator who builds the Mwanza charging base for mine haulage can monetise it year-round with port and city work when the mining contracts re-tender.
Lake Zone trucks arrive either via Dar es Salaam and the 1,150 km trunk road/rail corridor to Mwanza, or via Mombasa and the Kenya–Tanzania border at Isebania — the choice is usually driven by sailing schedules and the Isaka dry port's inland clearance. Both routes are routine for us: TBS PVoC in China, RoRo or flat-rack to either port, and battery documentation (UN 38.3, 30% SoC declaration) prepared with every consignment. Transit runs 32–40 days from China, and the Lake Zone's haulage seasonality — heavy in the June–November dry window — rewards operators who order at least four months ahead.
The Lake Zone haulage market is competitive and margin-thin, which is precisely why the energy-cost gap matters so much. A haulier who converts a third of the fleet to TZ3Z units and lands a 35–50% lower cost per tonne-kilometre will take the next tender cycle. The mines want the emissions story; the hauliers who can also show the cost story will win it.
Ready to electrify your fleet? Contact Shaanxi Fenghan Trading — authorized Dongfeng EV truck exporter. WhatsApp: +86 153 1943 1311 | Email: sales@fenghan-trade.com | dongfengevtrucks.com
🌐 Our Network: Fenghan Trade (SAGMOTO/SHACMAN Truck Export) · heavy duty mining dump truck 6x4 8x4