Abstract

As digitalization reshapes industrial ecosystems, small and medium-sized enterprises (SMEs) in resource-based economies face growing pressure to adapt. This study examines the digital maturity of supplier firms within Chile's Antofagasta mining cluster, a region that plays a central role in national productivity. A structured survey was conducted with 83 companies, using a ten-dimensional model to assess key areas such as data management, processes, personnel, and technology use. Results show that the average maturity level is 2.5 on a five-point scale, placing most firms at an early stage of digital transformation. While data-related capabilities scored relatively high, critical gaps persist in automation, robotics, and cybersecurity. Company size was moderately correlated with digital maturity, but no consistent relationship was observed with revenue growth. Although most firms acknowledge the relevance of digital technologies, few have formal plans or strategies in place. These findings reveal a structural lag that limits the potential of SMEs to engage fully with Industry 4.0, underscoring the need for tailored support policies and collaborative development initiatives in the mining sector.