Nestled within the revised finance bill tabled on July 17, a single figure stands out for its sheer scale. The Gabonese government has slashed its expected corporate tax revenue from the mining sector by a staggering 97%, plummeting from 53.2 billion FCFA to just 1.47 billion. This drastic revision, which dwarfs any other tax adjustment in the 2025 budget, translates to a revenue loss of 51.8 billion FCFA—nearly €80 million—on a single fiscal line item.
Budget adjustment clashes with Gabon’s post-oil mining strategy
Manganese, alongside timber and oil, serves as one of Gabon’s top three foreign exchange earners. The country ranks as the world’s second-largest producer of the mineral, with most extraction concentrated in the Haut-Ogooué region. Key players include Comilog, a subsidiary of the French group Eramet, and Nouvelle Gabon Mining. Since the 2023 military transition led by the Comité pour la transition et la restauration des institutions (CTRI), authorities have repeatedly stressed the need to maximize fiscal returns from mining concessions. Yet the revised budget reveals the opposite—an unprecedented shortfall in projected mining tax receipts.
Global manganese prices have faced a sharp correction since mid-2024, following a supply shock triggered by a mine fire in Australia. The price decline has weighed heavily on the profitability of Gabon’s mining operators, shrinking their taxable income. Still, the gap between initial projections and actual collections raises serious questions about the accuracy of the assumptions used in the original budget framework.
Fiscal transparency tested by extractive sector rents
The shortfall comes at a sensitive time, as Gabon re-engages with the Extractive Industries Transparency Initiative (EITI) after years of absence. The 51.8 billion FCFA shortfall is equivalent to several months of civil service salaries in key ministries. This revenue hole coincides with ongoing negotiations for a new IMF support program, amid tightening liquidity and increased reliance on regional BEAC markets to meet monthly obligations.
Local analysts point to a growing disconnect between official rhetoric on tightening fiscal terms with multinational extractive firms and the practical outcome reflected in the revised budget. In late 2023, the transitional authorities pledged to review all mining and oil agreements, aiming to renegotiate fiscal regimes deemed unfavorable to the state. Yet two years on, actual mining corporate tax revenue barely reaches 3% of the original target, with no official explanation provided on the macroeconomic or contractual assumptions behind this revision.
Mixed signals for partners and investors
The timing of this adjustment is critical, arriving just weeks before the government finalizes its multi-year budget framework and must choose between sustaining major infrastructure projects or reining in the fiscal deficit. A 51.8 billion FCFA revenue shortfall forces the executive to rethink its fiscal strategy—either through spending cuts or increased domestic borrowing. Multilateral lenders will closely scrutinize how the government justifies this discrepancy before the transitional parliament.
For mining operators, the move sends conflicting signals. On one hand, a lower effective tax burden provides relief amid a prolonged downturn in commodity prices. On the other, it fuels political debate domestically over whether the country is receiving fair compensation for its natural resources. The upcoming 2026 finance bill, expected in the fall, will need to clarify whether this adjustment is a temporary adjustment or a lasting shift in Gabon’s mining tax policy.
