Japan's annual wholesale inflation hit 4.2% in March, accelerating from the previous month in a sign of persistent cost pressures that add to corporate pain from uncertainty over U.S. tariff policy.
The data highlights the challenge the Bank of Japan faces in judging the timing of its next interest rate hike, particularly given push-pull forces exerted by mounting domestic inflationary pressure and the expected hit to economic growth from President Donald Trump's tariffs.
The rise in the corporate goods price index (CGPI), which measures the price companies charge each other for their goods and services, exceeded a median market forecast for a 3.9% increase and followed a 4.1% gain in February.
Prices rose for a broad range of goods, including a 3.1% year-on-year gain in the cost of food and a 8.6% jump in petroleum and coal prices, central bank data showed on Thursday.
The yen-based import price index, however, fell 2.2% in March from a year earlier after a 0.9% drop in February.
"Wholesale inflation is likely to slow ahead due to falling commodity costs and the yen's rebound," which will help moderate consumer inflation, said Masato Koike, senior economist at Sompo Institute Plus.
Stubbornly high food costs and rising wages have kept consumer inflation above the BOJ's 2% target for nearly three years, underpinning market expectations the central bank will continue raising interest rates from the current 0.5%.
But Trump's decision to impose sweeping tariffs on goods imports has complicated the BOJ's rate-hike path by threatening to derail a moderate recovery in Japan's export-heavy economy.
