Fire Halts Cajamarquilla Smelter in Peru, Injures Four Workers

NEXANEXA

Nexa suspended operations at its Cajamarquilla zinc smelter in Peru after this morning's fire injured one employee and three contractors and damaged smelter infrastructure. No fatalities occurred, the fire has been contained and a material impact is not expected as authorities are notified and restart timing is under review.

1. Incident Overview

A fire broke out this morning at Nexa’s Cajamarquilla zinc smelter in Lima, Peru, prompting an immediate suspension of operations. The blaze was contained by internal emergency teams before spreading to adjacent facilities.

2. Personnel Impact

Personnel were evacuated from affected areas as a precautionary measure. There were no fatalities, but one Nexa employee and three contractors sustained injuries and are currently in stable condition.

3. Operational and Infrastructure Impact

Damage occurred to portions of the smelter infrastructure, though management currently does not anticipate a material impact on annual production. Emergency response assessments indicate repairs will be targeted at specific damaged units.

4. Next Steps and Outlook

Notifications and coordination with local authorities are underway while the root cause is under investigation. Management is evaluating the timeline for restart and repair costs, with updates to be provided as assessments conclude.

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