Chalco plans to build a 1.2Mt alumina project in Guinea

The Aluminium Corporation of China (Chalco) said on Friday the board has approved a Hong Kong subsidiary’s plan to invest in a 1.2-million-ton per year alumina project in Guinea.

The Guinean alumina project is the company’s first such program abroad.

The overall investment is estimated at around $1 billion.

The planned investment was approved by the board on June 26, 2025, but the disclosure was deferred as per some regulatory rules as the company was afraid a then-disclosure could adversely impact the project progress, Chalco said in an exchange filing.

Three of the company’s subsidiaries signed the amended and restated mining agreement with the government of Guinea on Thursday.

The agreement is still subject to review by the company’s shareholders and approvals from related government agencies in Guinea.

The Hong Kong subsidiary and the mining and ports subsidiaries in Guinea signed a mining agreement with local government in 2018, which enabled the mining subsidiary to secure the bauxite mining rights to the Boffa north and south deposits in Guinea.

Shares at Chalco rose by 2.86% on Friday.

(By Amy Lv and Lewis Jackson; Editing by Janane Venkatraman)