Brazilian energy group Cemig has been granted an interim injunction to continue operating the 424MW Jaguara hydroelectric plant, the company said in a statement on Tuesday.

The federal supreme court decision comes six months after Cemig’s request to temporarily maintain the concession was rejected by Brazil’s higher appeal court.

In handing down the ruling, judge Dias Toffoli said Cemig had met “preconditions” required to continue operating the plant until a final supreme court judgment.

Cemig claims it was unlawfully stripped of Jaguara’s concession in 2013 after if refused to accept new government terms that reduced the plant’s profitability.

Located on the Grande river in the southeastern state of Minas Gerais, the Jaguara plant began operating in 1971.