• A chemical reaction occurred at CSN's Presidente Vargas steelworks in Volta Redonda, Rio de Janeiro, on October 28, 2026.
• The incident occurred around 1:30 p.m. during pig iron unloading, when hot material contacted excess ground moisture, releasing visible smoke.
• Production was unaffected, with the plant operating normally. No casualties, injuries or environmental damage were reported.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. CSN - Companhia Siderúrgica Nacional published the original content used to generate this news brief on October 28, 2026, and is solely responsible for the information contained therein.