147 discovery, definition, development, and delivery to guide listening processes, usage prototypes, and field validation (Januário et al., 2023). Methodology and aproach 1) Technical and regulatory basis We structured a logical framework that articulates vision, principles, objectives, risks and opportunities, and closure success criteria, aligned with the Integrated Mine Closure Good Practice Guide (International Council on Mining and Metals [ICMM], 2019). This framework guided the integration of geotechnical and environmental studies, regulatory requirements, and decisions about where and how to safely and publicly test future land-use scenarios. 2) Engagement and social participation The engagement strategy was designed to go beyond communication, prioritizing meaningful consultation, transparency, and a clear process of participatory construction. This is consistent with ICMM’s Integrated Mine Closure – Training Module 3: Stakeholder Engagement (ICMM, 2020) and international frameworks such as the Equator Principles (EP4) and the World Bank’s Stakeholder Engagement Plan (SEP). We operationalized this through workshops, guided visits (Casa Uso Futuro), itinerant engagement stands, a listening van in Nova Lima and Belo Horizonte, and a public hearing — maintaining systematic records of perceptions and providing continuous feedback to the community (The University of Queensland – Centre for Social Responsibility in Mining [UQ/CSRM], 2020; ICMM, 2020). Table 1 — Summary of engagement (2020–2025) Ação Ano(s) Nº de ações Participantes (n) Descrição / finalidade Percepcion research 2020 1 605 Levantamento com comunidades do entorno Oficinas (1º ciclo) 2022 4 140 Meio ambiente; desenvolvimento socioeconômico; patrimônio/turismo; urbano/mobilidade Visitas guiadas – Casa Uso Futuro 2025 162 2.470 Programa de visitas guiadas e escuta estruturada Eventos de abertura gradual 2022–2025 7 5.279 Corrida, MTB, triathlon, lazer e mergulho (scuba/free‑diving) Estande Uso Futuro itinerante 2025 4 1.000 Escuta e divulgação em eventos setoriais
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