Nexa Provides Update on Cajamarquilla Operation

Core Viewpoint - Nexa Resources has temporarily suspended operations at the Cajamarquilla smelter due to a strike initiated by operator employees represented by their labor union, which began on June 25, 2025 [1][2]. Company Operations - The strike affects only the operator's union, as an agreement has already been reached with the technician's union [2]. - Nexa is actively monitoring the situation and is taking necessary measures to ensure the health and safety of its employees, contractors, and host communities [3]. - The company does not expect any impact on its 2025 sales guidance despite the ongoing strike [3]. Company Background - Nexa Resources is a large-scale, low-cost, integrated polymetallic producer, primarily focused on zinc, with over 65 years of experience in mining and smelting operations in Latin America [4]. - The company operates four long-life underground polymetallic mines and one low-cost open pit mine in Peru, along with three smelters, including Cajamarquilla, the largest smelter in the Americas [4]. Industry Position - In 2024, Nexa was ranked among the top five producers of mined zinc globally and one of the top five metallic zinc producers worldwide, according to Wood Mackenzie [5].