CHINA’S largest state-owned aluminium producer will invest $1 billion in constructing an alumina processing plant in Guinea. This will marking its first foray into overseas refining as Chinese companies engage in a heated race to secure raw material supplies. Also, this project will see the development and upgrade of transport infrastructure that will enable easier transportation of the minerals.

Bloomberg News reported that Aluminum Corp. Of China, known as Chalco, will construct a special-purpose entity to build a 1.2-million-ton-a-year facility in Guinea. Additionally, Guinea’s government will receive a 5% stake free of charge or at nominal cost, with the option to increase its holding to 35% at market value, the newswire said.

Chalco Deepens Investments in Guinea

Furthermore, the investment deepens Chalco’s presence in Guinea. Chalco has operated the Boffa bauxite mine in the country for the past decade. Also, it has been shipping the ore to feed smelters in China. The company stated that the alumina plant would help expand bauxite exports, without providing further detail.

Guinea stands as the world’s leading producer of bauxite. Bauxite is the ore from which alumina gets refined before being processed into aluminium, stated Bloomberg News. Moreover, its government has been pushing mining companies to develop in-country processing capacity as a means of generating broader economic returns from its mineral wealth.

Scramble for Minerals in Africa

Chalco is not alone in its African push. Also, Rival China Hongqiao Group and other Chinese producers have been expanding into bauxite-rich countries to lock in upstream supply.

Lastly, the investment remains subject to approval by Chalco’s shareholders and the Guinean government.

Guinea’s Alumina Plant Project Factsheet

Lead Investor: Aluminum Corporation of China (CHALCO), via its wholly owned subsidiary Chalco Energy Holdings / Chalco Hong Kong Ltd.

Project Consortium: Chalco Hong Kong, alongside its local Guinean mining and port subsidiaries, and the Guinean Government.

Project Type: Greenfield Alumina Refinery & Integrated Logistics Infrastructure.

Refining Capacity: 1.2 million metric tons per annum (Mtpa) of alumina.

Primary Feedstock Source: The project links directly into Chalco’s existing Boffa bauxite reserves (North and South deposits), which Chalco has mined and shipped as raw ore to Chinese smelters since 2018.

Scope of Infrastructure: Construction includes the core chemical refining production lines, specialized conveyor corridors, and dedicated supporting port infrastructure for mass export.

Total Estimated Investment: Approximately $1 billion, funded via cash capital contributions from Chalco.

Regulatory Status: The investment got approval from the Chalco Board. Definitive shareholder documentation and detailed circular disclosures will get released around August 10, 2026, pending final regulatory and general assembly nods in China and Guinea.