On 5 August 2025 Guinea’s military-led government revoked Guinea Alumina Corporation (GAC), EGA’s concession, citing mining-code breaches (failure to build an alumina refinery), and transferred the assets “free of charge and without compensation” to newly created state-backed Nimba Mining SA. GAC had invested >US$1bn since 2019 and exported at 14Mtpa at peak from reserves of ~470Mt; the seizure eliminated 2,000+ jobs in Boké and escalated into threatened litigation, with December 2025 talks on a bauxite supply agreement to avert it.
It is the sharpest enforcement yet of Guinea’s “refinery-or-lose-it” policy regime (see the US$1bn refinery wave, Tier 2).
Value: Not disclosed.
Advisers: GAC/EGA’s dispute counsel and the state’s advisers were not publicly named in the revocation notices.
Recorded by The Meridian research desk from public announcements, regulatory filings and financial press coverage. Dates and values are as publicly reported.
