Guinea, the world’s largest bauxite exporter, is seeking to use its growing dominance in the raw material used to produce aluminium to gain greater control over prices, processing and the structure of the global supply chain.
The West African nation is pursuing a strategy similar to moves by Indonesia in nickel and the Democratic Republic of the Congo in cobalt, as governments of resource-rich countries seek to capture more value from their minerals rather than relying on raw exports.
Guinea now accounts for about 40 percent of global bauxite production and around 70% of seaborne exports, following a rapid expansion driven largely by Chinese investment. The country overtook Australia as the world’s leading producer in 2023.
Exports rose 25% year-on-year to 183 million tonnes in 2025, contributing to a sharp fall in prices as supply growth outpaced demand.
The government in Conakry is now considering measures to slow the expansion of the mining sector, including possible production controls and restrictions on exports beyond approved mining quotas.
The objective is to encourage more local processing and move Guinea from a supplier of raw bauxite toward a producer of alumina, the intermediate material required for aluminium production.
China has become heavily dependent on Guinea’s bauxite to feed its massive aluminium industry. Imports from Guinea increased from 334,000 tonnes in 2015 to 149 million tonnes in 2025, accounting for about 74% of China’s total bauxite imports.
Chinese aluminium producers have turned increasingly to Guinea because domestic reserves have declined after decades of mining and are generally lower quality.
The country’s aluminium sector has expanded rapidly, creating a growing need for imported bauxite and overseas alumina refining capacity.
A major sign of China’s commitment to Guinea’s processing ambitions is a planned US$1 billion alumina refinery investment by state-owned aluminium producer Aluminum Corporation of China.
The planned facility, with annual production capacity of 1.2 million tonnes of alumina, would become one of the largest industrial investments aimed at increasing local mineral processing.
Guinea currently has only one operating refinery, the Fria plant, which dates back to the 1960s and is owned by Russian aluminium producer United Company RUSAL. The facility has a capacity of about 650,000 tonnes per year but has operated below full potential.
The government has set a target of developing five to six additional processing plants with a combined alumina capacity of 7 million tonnes annually by 2030.
Authorities have also sent warnings to mining companies over commitments to develop local processing capacity. The seizure of assets linked to Emirates Global Aluminium last year after disagreements over refining commitments highlighted the government’s push for greater domestic value addition.
Guinea’s strategy follows Indonesia’s decision to restrict bauxite exports in 2023 to force miners to invest in processing facilities.
However, unlike Indonesia, Guinea faces limitations in moving beyond alumina production because it lacks the energy capacity needed for large-scale aluminium smelting.
If successful, the strategy could help create a West African alumina hub as other producers also seek to process more of their mineral resources locally.
Nigeria has signed a US$1.3 billion investment agreement with Africa Finance Corporation to develop an alumina refinery, while Ghana is advancing plans through the Ghana Integrated Aluminium Development Corporation.
The shift toward local processing could reshape the aluminium supply chain by reducing the dominance of raw bauxite exports, expanding global alumina trade and increasing competition between Chinese refineries and new African processing centres.
