This Case Study is the full mine-to-port Digital Twin across an iron ore operation. Before OctaSense, the mine, rail network, processing plant, and port were each managed by separate teams with different SCADA systems and no shared risk view. OctaSense unified all of this under a single AI-powered Digital Twin with three layers — a physics-based structural model, a real-time data layer, and an intelligence layer. The platform integrated over 1,200 sensor channels across the entire value chain, enabling cross-domain correlations (e.g., truck overloading at the mine predicting rail fatigue at specific curves). It also introduced scenario simulation — allowing engineers to model the impact of operational changes before implementing them, fundamentally shifting the team from reactive to proactive decision-making.