A Brazilian court has ruled Brazilian steelmaker Companhia Siderurgica Nacional (CSN) and Harsco Metals should limit the amount of iron ore slag they can pile near a CSN mill.
The CSN Presidente Prudente mill, located in the city of Volta Redonda, in the state of Rio de Janeiro, has a 5.8 million mt/year steel capacity, and is near the Paraiba do Sul river. CSN had been piling iron ore slag near the facility, and the company was previously fined by a Brazilian court due to the growing piles of slag.
Rio de Janeiro state and federal prosecutors had filed a lawsuit in 2018 demanding CSN to remove the 20-meter tall iron ore slag piles near the river. CSN may be fined again at if it fails to reduce the iron ore slag piles.