Japan’s producer prices rose 6.3% year-on-year in May 2026, up from an upwardly revised 5.3% in April and exceeding market expectations of a 5.5% increase. This marked the fastest annual pace since March 2023 and underscored persistent cost pressures, driven in particular by higher energy prices amid supply chain disruptions linked to the conflict involving Iran. On a monthly basis, producer prices climbed 0.9%, slowing from an upwardly revised 2.8% surge in April, which had been the sharpest monthly increase since April 2014.