"Bulk carriers" in the supply chain refer to specialized ships designed for transporting large quantities of unpackaged bulk cargo, such as grains, coal, ores, and liquids. These vessels are equipped with specific features like large hatches, conveyor belts, or pumps to facilitate efficient loading and unloading of the cargo. Bulk carriers play a crucial role in global trade, offering a cost-effective and efficient means of transporting commodities in large quantities across the world's waterways.