Vale has achieved a major advance in the adoption of alternative, lower-carbon fuels for shipping. A pioneering project developed by the company resulting in a design to incorporate multi-fuel tanks on iron ore carriers has received an Approval in Principle from the leading Classification Society DNV. The independent assessment performed by DNV verifies the technical feasibility of the design, and indicates that based on this system, developed in partnership with Norwegian companies Brevik Engineering AS and Passer Marine, vessels chartered by the mining company could be adapted to store fuels as liquefied natural gas, methanol and ammonia in the future.The multi-fuel tank design is part of the Ecoshipping program, developed by Vale to adopt new technologies and renew its fleet with the aim of reducing carbon emissions from shipping. A preliminary study for ships of the Guaibamax category estimates that emissions reductions can range from 40% to 80% when powered by methanol and ammonia, or up to 23% in the case of LNG.Currently, dozens of second-generation VLOCs (Very Large Ore Carriers) already in operation, with 400 and 325 thousand tons of capacity, have been designed for future installation of an LNG system, including an under-deck compartment to receive a tank with capacity for the entire voyage. Having received the AIP for the multi-fuel tank design, a pilot project will be developed in the coming months for the implementation of this system on a Guaibamax.