2106 operation. This prioritization allows the alignment of infrastructure development with the mining sequence, optimizing the use of resources and ensuring a progressive and efficient start-up of the macroblock. Illustration 5: Arrangement of transfer systems macroblock S04 2. METHODOLOGY Mine development represents a fundamental stage within the life cycle of a deposit and requires coordinated planning of all activities associated with the development of underground work. The main objective of this planning is to meet construction milestones within the established deadlines, which ensures the timely start of production. To achieve this, it is essential to have scheduling aligned with the strategic objectives of the division, incorporating technical, logistical, economic, and safety aspects. This planning should focus on managing, driving, promoting, and operationalizing the achievement of long-term plan goals. The mining preparation planning process is carried out monthly through the Monthly Activity Plan (PAM), a key tool to ensure compliance with the annual commitment (P0) and the effective execution of operational goals. This budget considers, among other strategic objectives, the start of production in the N42, S04 macroblocks, and the Panel Central during the year 2026, as well as the operational continuity of sectors N1S1, N2N3, S2S3, and N41. The correct management of these macroblocks is fundamental to maintaining the planned productive capacity throughout the entire period of the 2026 commitment, ensuring the operational stability of the mine. The planning process begins with the monthly update of the actual progress in mining preparation, which encompasses both horizontal developments and the civil works associated with each macro block. This monitoring also includes a detailed review of the designs and plans, ensuring that any necessary modifications or adjustments are incorporated into the plan in a timely manner. This stage allows for an accurate view of the progress status and existing gaps, serving as a basis for planning the following months. Once the actual progress is updated, the expected progress for the month is projected in the quarterly plans of each construction company involved, distributing the activities according to the available resources. This proposal is analyzed and contrasted with multiple critical factors, such as the required yields to meet the annual commitment, construction milestones, geomechanical restrictions, interferences, mucking routes, and other elements that may affect the development sequence. Finally, the process of planning control and monitoring is carried out, whose purpose is to identify early warnings and improvement opportunities that ensure their fulfillment. This monitoring includes periodic performance evaluations, resource adjustments, and prioritization of critical activities, ensuring that mining preparation progresses in a coordinated, efficient, and safe manner, optimizing operational continuity and contributing to the achievement of long-term production and planning objectives. 3. RESULTS As an example of planning, during the month of February 2026, mining preparation activities continued advancing in macroblock N42, focusing mainly on the execution of civil works. During this period,
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