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[BUSINESS] · Brazil · 4 sources

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CSN steel plant explosion in Volta Redonda causes smoke and alarm

An explosion occurred on Wednesday afternoon at the Companhia Siderúrgica Nacional (CSN) Presidente Vargas plant in Volta Redonda, Rio de Janeiro. The incident, which took place around 1:30 p.m., involved a chemical reaction during the unloading of high-temperature pig iron from a torpedo car into the Kisch Pit (Slag Dumping Pit).

According to CSN, the contact between the high-temperature material and excessive moisture in the soil triggered an intense reaction, resulting in a loud blast and a large column of smoke visible both inside and outside the facility. The blast was loud enough to be heard by residents at a distance.

The Rio de Janeiro Military Firefighters (CBMERJ) and the company’s internal brigade responded to the scene. Authorities confirmed that there were no injuries and no active flames remained after the initial response. The Civil Police are investigating the circumstances of the event, with forensic analysis expected to follow the completion of cleanup operations.

Entities

Civil Police of Rio de Janeiro · Companhia Siderúrgica Nacional · Presidente Vargas Plant · Rio de Janeiro Military Firefighters · Volta Redonda

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