Tennant/Africa
Mine to Metal

From ore body to cast ingot.

We control each stage of antimony production — extraction, hydrometallurgical processing, electrowinning and casting — at our operations in Zimbabwe.

01 — Processing

Leaching & Electrowinning

Antimony is dissolved from concentrate into solution in the leaching circuit, then recovered as metal onto cathodes in the electrowinning cells.

The leaching tank drives the chemistry; the row of electrowinning cells plates out the metal before it is melted and cast.

Hydrometallurgical route · on-site recovery
Leaching tank and electrowinning cells at the Tennant Africa processing plant in Zimbabwe
Leaching tank and electrowinning cells — processing plant, Zimbabwe.
Stacked antimony ingots at 99.7 percent purity, Kwekwe, Zimbabwe
Cast antimony ingots, 99.7% Sb — Kwekwe, May 2026.
02 — Finished Metal

Cast to 99.7% Antimony

Recovered metal is melted and cast into ingots at commercial grade, stacked and prepared for dispatch to industrial buyers.

Supplied for flame retardants, lead-acid batteries, alloys and defence applications worldwide.

99.7% Sb · commercial grade · ready for dispatch
03

The Team

Oussama Razouki, Managing Director
Oussama Razouki
Managing Director

An engineer by training, Oussama leads the firm's strategy and commercial operations, connecting African production to international markets.

oussama@tennantafrica.com
Boris Tam, Operations Director
Boris Tam
Operations Director

A French engineer based in Zimbabwe, Boris oversees mining and refining on the ground, taking local ore through to finished 99.7% antimony ingots.

boris@tennantafrica.com