Material control is a system that ensures the efficient procurement, storage, and use of materials. It aims to provide the right quality and quantity of materials at the minimum possible cost. Key aspects of material control include establishing stock levels to prevent understocking or overstocking, using economic order quantities to minimize purchasing costs, and implementing inventory tracking systems. Techniques like ABC analysis prioritize materials based on value and VED analysis categorizes spare parts based on criticality to operations. Material control helps ensure uninterrupted production while optimizing investment in inventory.