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ROI-Guinea bets bauxite dominance can reshape aluminium supply: Andy Home

ROI-Guinea bets bauxite dominance can reshape aluminium supply: Andy Home
ROI-Guinea bets bauxite dominance can reshape aluminium supply: Andy Home

Guinea, a West African nation, is now the largest producer of bauxite in the world. This raw material is ultimately transformed into aluminum.

It is now trying to leverage its newfound dominance in order to exert greater control on both the price and industry structure.

The three biggest resource companies are trying to reign in the mining sector, which has grown too large too quickly and is flooding global markets. Prices have also crashed.

Indonesia uses mining quotas. The Congo exports quotas. And?Guinea is'minded to implement both to stop operators from exporting more than what their mining quotas permit them to produce.

Conakry has the opportunity to follow Indonesia's example by shifting from bauxite to alumina refinement and capturing more value of its resources.

The commitment of Chinese state-owned aluminium producer Chalco to build a $1 billion refinery is proof that the strategy is working.

BAUXITE BOOM

Bauxite, the third-most abundant element on Earth's surface, is too dispersed and/or too low in quality to be converted into alumina.

Guinea is home to the largest reserves of metallurgical Bauxite in the world. It also produces a product that is highly purified and prized for having a low natural silica content.

China has become the largest producer of bauxite in the world, surpassing Australia by 2023. It now represents around 40% of global production and 70% of seaborne exports.

Guinea's exports increased by 25% from year-on-year to 183 millions metric tons by 2025. This caused the prices to fall by nearly half in the last year and first part of 2026.

The government wants to find the best way to?hit the brakes' without creating the market disruptions caused by Congo’s cobalt-export quota system.

CHINESE DEPENDENCY

China is increasingly dependent on Guinea to supply bauxite for its massive aluminium sector.

Imports from Guinea grew from 334,000 tons to 149,000,000 tons by 2025. By then, they represented 74% of all Bauxite imported.

China's bauxite deposits are smaller and of lower quality than those found in Guinea.

The country's aluminium smelting capability has been massively increased in the last century. This expansion is far greater than its domestic bauxite mine capacity.

The Chinese have plenty of time to prepare for the planned crackdown by Guinea on its bauxite industry. Imports from Guinea in March reached a record monthly volume of 18 million tonnes.

The scale of the flow of materials makes it difficult to break the dependence. The nature of the dependency will however change.

ALUMINA AMBITIONS

Chalco's commitment to building the new 1.2-million-ton-per-year alumina refinery shows how seriously China takes the threat to the flow of raw materials.

This is the first significant overseas investment by China's giant state corporation in alumina. This is the third alumina refinery announced by China in recent months.

The only refinery in Guinea is Friguia, built in the 1960s. It was first owned by France's Pechiney and then by U.S. producers Reynolds, and since 2008, by Rusal. The refinery was shut down between 2012 and 2018, but it is now operating, although at a lower capacity than its original 650,000 tons per year.

Conakry's government aims to build five or six additional processing plants by 2030, with a combined alumina capacity of seven million tons.

The seizure last year of mining assets by Emirates Global Aluminium for failing to fulfill a commitment for refining served as a "stark warning" for other operators.

NEW INDUSTRY?HUB

Guinea follows Indonesia's lead, which in 2023 banned the export of bauxite to force miners into building up processing capacity.

Guinea does not have enough energy to refine alumina or smelt it into aluminium.

If Guinea is able to implement its strategy successfully, it can turbo-charge West African alumina hub creation.

Other African bauxite manufacturers are also following the same value-added path to keep more of their mineral revenue.

Nigeria signed a $1.3billion investment deal with Africa Finance Corporation to build an alumina refining plant, while Ghana wants to do the exact same thing under the auspices the Ghana Integrated Aluminium Development Corporation.

The shift in Africa from mining to first stage processing could have a transformative effect on the aluminum supply chain.

The seaborne bauxite industry will shrink. Global alumina exports will increase and China's alumina refineries in the country will be competing with their biggest raw material supplier.

Andy Home is a columnist at. This column is great! Check out Open Interest, your new essential source for global financial commentary. Follow ROI on LinkedIn and X. Listen to the Morning Bid podcast daily on Apple, Spotify or the app. Subscribe to the Morning Bid podcast and hear journalists discussing the latest news in finance and markets seven days a weeks.

(source: Reuters)