Supply chain visibility provides transparency into supplier performance, inventory locations, shipment status, and potential disruptions across multi-tier supply networks. Advanced visibility platforms integrate data from suppliers, logistics providers, and IoT sensors to enable proactive risk management. During semiconductor shortages in 2021-2022, companies with deep visibility into sub-tier suppliers adapted faster than competitors. Technologies like blockchain, RFID, and control towers enhance traceability and enable rapid response to quality issues, delays, or geopolitical disruptions. Limited visibility beyond tier-one suppliers represents a critical vulnerability for many organizations.