In the transition to zero emissions for vessels employed in international shipping, developing technology for new marine engines and their fuel, as well as for reducing hull resistance is an issue of utmost importance. At the same time, it is imperative to respond to international environmental regulations, establish an infrastructure for supplying new fuels, determine future transport demand, investigate financing prospects, and ensure the steady growth of stakeholders in the shipping economy. The shipbuilding industry must conduct comprehensive and future-oriented examinations from the viewpoints of both technology and the economy, and through demonstrating this, combine forces with maritime clusters to propose and provide vessel systems optimized for the transition to zero-emission international shipping.