Chile's financial regulator is currently reviewing Tianqi's complaint, and has said that the company could appeal the decision in the court system.

The miner closed a 10-year deal with Wabtec to optimize the maintenance services for its fleet in the Estrada de Ferro Carajás.

The government has also set a 12-year period for the payments to be made.

Peru's constitution requires foreign private investment within 50 kilometers of the country's border to be approved by the cabinet of ministers.

About $1.5bn invested in energy transition-related projects are at risk through 2030, research from Bain & Company shows.

Tianqi has argued to the regulator that a shareholders' vote is needed to approve the SQM-Codelco agreement.