Japan has filed a complaint with the World Trade Organization over China's anti-dumping duties on Japanese stainless steel products.
The government took the step on Friday, arguing that the tariffs of up to 29 percent violate international trade rules.
China took the measure in July 2019. It said the Japanese products were being sold at unfairly cheap prices and hurting China's domestic industry.
Japan says the targeted items are high-priced and do not compete against Chinese products. It also says China has unfairly grouped together products with different functions and usages.
The stainless steel products in question are used in automobiles, ships and a broad range of other items.
Japanese officials say the higher Chinese tariffs have cost domestic producers about 5.6 billion yen, or about 51 million dollars, in annual lost sales.