Kasumbalesa bridge collapse severs Congo's key copper-export corridor, forcing transshipment delays. The world's second-largest copper producer now relies on alternative routes after the Zambia-Congo border crossing washed away. Transporters face queues stretching miles as repairs commence, potentially disrupting shipments for weeks. Work to restore access within 48 hours is underway, but the choke-point highlights the Lobito rail corridor connecting Angolan ports and Tanzania's Dar es Salaam route as vital alternatives. China's $1.4 billion railway investment underscores the strategic shift needed for stable exports.