Alumina Company of Guinea
Alumina Company of Guinea (ACG) is a Guinean alumina producer associated with the Fria alumina refinery.
Last updated August 25, 2026
Overview
Alumina Company of Guinea, commonly abbreviated as ACG, is a Guinean company involved in alumina production. Its principal asset is the Fria alumina refinery in the Fria region of Guinea, one of the country's significant facilities for processing bauxite into alumina. The company has been associated with United Company RUSAL, and its activities are generally discussed as part of RUSAL's bauxite and alumina operations in Guinea. Public descriptions of the company's legal structure, ownership changes, and current operating status are not fully consistent, so its founding year, latest output, and present management should not be stated without a reliable source. The business is connected not only with alumina production but also with ore supply, plant infrastructure, and the surrounding industrial base. Its recognition is primarily within the mining, aluminium, and Guinean industrial sectors rather than among consumer audiences.
History
The activities of Alumina Company of Guinea are associated with the Fria alumina refinery in Guinea. Fria became one of Guinea's early industrial locations for processing bauxite into alumina, placing the company in the segment of the aluminium value chain that converts ore into feedstock for smelting. The company later became associated with United Company RUSAL through ownership or operational arrangements and was discussed as part of RUSAL's industrial activities in Guinea. The Fria plant has been affected by periods of suspension, labour relations issues, attempts to resume production, and broader operating conditions, while public accounts differ on the status of each period. Because sufficiently reliable and consistent public information is not available, this entry does not assert a specific founding year, management history, production capacity, or current operating status.
Products and positioning
Alumina
The company's core product is alumina, an intermediate material made by processing bauxite and mainly used as feedstock for aluminium smelting. Its production is associated with the Fria refinery and serves industrial customers rather than consumers.
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