In Guinea, Alcoa is a joint owner of Compagnie des Bauxites de Guinée, (CBG). CBG was formed in 1963 by the Government of Guinea and Halco (Mining), Inc. (Halco) to develop bauxite in the Boké region. The Government of Guinea owns 49% and Boké Investment Company owns 51% of CBG. Halco owns 100% of Boké Investment Company. Alcoa World Alumina LLC, a majority-owned subsidiary of Alcoa, owns 45% of Halco.

With more than 2,200 employees, the Company mines the world-class Sangarédi bauxite deposit in northwestern Guinea, recognized for its rich ore body containing approximately 50 percent alumina. CBG exports approximately 15 million tons of high-grade bauxite annually. Mining rights extend until 2038.

Alcoa office in Guinea is located at:

Alcoa Guinée
Immeuble Zein
6e étage, App. #1
B.P. 3686
Quartier Almamya
Commune de Kaloum
Conakry, Guinée