Portfolio

Four minerals. One standard.

GilBay's portfolio is deliberately concentrated. We extract what Zambia does best, and we do it in a way we can defend to the next generation.

Copper

01 / Metals · ≈ 50% of production

Copper

High-purity copper cathodes and concentrates feed the global electrification economy. GilBay operates two dedicated concentrator plants in the Copperbelt.

Grade
≥ 99.99% Cu
Form
Cathodes, concentrate
Origin
Chingola, Zambia
Emerald

02 / Precious · Gem-grade rough

Emerald

Ethically sourced Zambian emeralds from the Kafubu region, sorted and graded on-site under Kimberley-adjacent chain-of-custody protocols.

Colour
Deep vivid green
Form
Rough / preformed
Origin
Kafubu belt
Coal

03 / Energy · Thermal & metallurgical

Coal

Industrial-grade anthracite and bituminous coal supporting regional energy infrastructure and metallurgical processing across Southern Africa.

Calorific value
6,200 – 7,100 kcal/kg
Ash content
< 12%
Origin
Maamba, Zambia
Diamonds

04 / Luxury · Alluvial recovery

Diamonds

Alluvial diamond recovery processed through high-tech optical sorting. Every stone is documented from riverbed to certified export.

Type
Alluvial rough
Certification
KP-compliant
Origin
SADC waterways