Moisture in bulk ores is an important parameter in handling and shipping operations, especially in the maritime modal. The magnitude of the moisture content is regulated by the International Maritime Organization – IMO, through the TML (Transportable Moisture Limit) parameter, in order to ensure safe conditions for the transport operation. Our study of drying operations with hot and dry air injection in transfer chutes and the technical mastery of the process are in line with the demand of the production chain that aims to reduce moisture in the final product.