Hidden in the revenue table of the revised 2025 budget law passed on July 17 lies a striking adjustment—one that reshapes Gabon’s fiscal landscape more than any other. The corporate tax expected from the mining sector has plummeted by 97%, dropping from 53.2 billion CFA francs to just 1.47 billion. No other taxpayer group faces such a drastic revision. For a nation that has leaned heavily on extractive industries to diversify its economy beyond oil, this adjustment equates to a staggering loss of 51.8 billion CFA francs—nearly 80 million euros in foregone revenue from a single tax category.
Budget revision puts Gabon’s mining strategy under scrutiny
Manganese, alongside timber and oil, ranks among Gabon’s top three foreign exchange earners. The country ranks as the world’s second-largest producer of the mineral, largely mined in the Haut-Ogooué region by Comilog—a subsidiary of the French group Eramet—and by Nouvelle Gabon Mining. Since 2023, following the military takeover by the Committee for Transition and Restoration of Institutions (CTRI), authorities have repeatedly stressed the need to increase fiscal returns from mining concessions. Yet this drastic revision in public accounts does the opposite.
Several factors likely contributed to this drop. International manganese prices have faced severe correction since mid-2024, following a supply shock caused by a mine fire in Australia earlier that year. The price decline has directly weakened the profitability of operators in Gabon, shrinking their taxable bases. Still, the gap between initial projections and actual performance raises questions about the accuracy of budget assumptions made in the original finance law.
Fiscal transparency tested by the mining rent dilemma
The issue carries heightened sensitivity as Gabon re-engages with the Extractive Industries Transparency Initiative (EITI) after years of inactivity. The 51.8 billion CFA francs in lost revenue could cover several months’ worth of civil service salaries in key ministries. This shortfall arrives as Libreville negotiates a new budget support framework with the International Monetary Fund, amid liquidity strain and growing reliance on regional BEAC markets to meet monthly obligations.
Local analysts point to a clear inconsistency between the government’s tough rhetoric toward multinational extractive firms and the actual fiscal outcome reflected in the revised budget. In late 2023, the transitional authorities pledged a comprehensive review of all mining and oil agreements, aiming to renegotiate fiscal terms deemed unfavorable to the state. Yet two years later, effective corporate tax from the mining sector stands at barely 3% of the original target—with no official explanation provided on the macroeconomic or contractual assumptions behind this revision.
Mixed signals to partners and investors
This development comes at a pivotal moment, just weeks before a major strategic milestone: the release of the country’s multi-year budget framework and the balancing of priorities between large infrastructure projects and deficit containment. A revenue shortfall of 51.8 billion CFA francs forces the government into difficult choices—either cutting public spending or increasing domestic borrowing. Multilateral lenders will carefully watch how the executive justifies this gap before the transitional Parliament.
For mining operators, the episode sends a contradictory message. On one hand, the reduced tax burden provides much-needed relief during a period of low commodity prices. On the other, it fuels political debate over fair resource compensation. When the 2026 budget law is introduced this fall, it must clarify whether this adjustment reflects a temporary market anomaly or a lasting shift in the fiscal yield of Gabon’s mining sector.
