Fabio Leal, a deputy labor prosecutor, said in an interview that talks with the three companies began in late December, but failed to reach an agreement. He declined to provide further details on why the talks were unsuccessful.

Leal said the workers were brought to Brazil illegally and promised working conditions that were not fulfilled. He said the Chinese workers, who have all returned to China, would receive any payouts from a lawsuit there, with the companies in Brazil responsible for providing proof of payment.

Leal added that a settlement is still possible, although now it will need to be facilitated through the court.

“Our lawsuit is very well-founded, with a substantial amount of evidence provided during the investigation process,” he said.