And, on the other hand, the construction of the ore pass associated with the S4 macroblock is progressing, which represents a significant milestone as they constitute the first material handling system using chutes implemented in the underground mine. Together, these developments reflect the magnitude of the current challenges, as well as the effort to optimize the operation and ensure its sustainability over time. For the fulfillment of construction milestones, it is essential to maintain monitoring and control over the progress of mining preparation in all the macroblocks that are under construction. Constant monitoring allows for the early identification of any deviation or delay from the established plan, enabling the immediate implementation of corrective or preventive actions. The main objective of this management is to ensure compliance with the committed plan in line with the annual commitment and to minimize possible operational losses that could affect productive continuity. This approach helps optimize mine planning by aligning resources and efforts toward risk prevention, impact mitigation, and maintaining projected production. In addition, it strengthens the capacity for decision-making based on updated and reliable information, ensuring that the operation progresses safely, efficiently, and in accordance with the Division's strategic objectives. REFERENCES Equipo Planificación y Preparación DCHS, (2025). Informe plan minero P0 2026 MCHS. Internal Report, Codelco Chile, Chuquicamata Division, No. GRMD-SPMD-INF009/2025. Mühlenbrock, K., Gómez, D., Mesina, C., (2026). Plan de Preparación Minera Cierre febrero 2026. Internal Report, Codelco Chile, Chuquicamata Division, No. GRMD-SGP-INF-009/2026. Rojas, B., Molina, Y., González, A., Barindelli, G., Quiroz, R., (2025). Factibilidad técnico-económico panel de recuperación central Mina Chuquicamata Subterránea, Codelco Chile, Chuquicamata División
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