Large-scale green hydrogen imports require low-carbon conversion of hydrogen carriers at the receiving terminal. This study evaluates an offshore wind-integrated ammonia cracking coupled with molten salt-based thermal energy storage (TES) for a supply chain from Australia to South Korea. Offshore wind generation near Ulsan was estimated from 2023 data for eight 15 MW turbines, while the ammonia cracking process and dynamic TES behavior were modeled. Wind electricity was prioritized for direct electric heating and TES charging; grid electricity supplied deficits, and surplus wind power was exported. The wind power plant achieved a capacity factor of 41.7%. The integrated process reached an NH₃ conversion of 98.31%, and two alternately operated molten salt tanks achieved a storage utilization factor (SUF) of 77.5%. The green ammonia pathway yielded a base-case levelized cost of hydrogen (LCOH) of 7.06 USD/kgH₂ and a carbon intensity of 3.25 kgCO₂-eq/kgH₂. The results indicate the potential of high-temperature TES to shift wind-derived energy into continuous hydrogen production, while highlighting the remaining influence of ammonia cost and grid-supported operation.