Japanese Prime Minister Shigeru Ishiba said Monday that his administration will continue pressing U.S. President Donald Trump to ease newly imposed tariffs on Japanese goods, though he acknowledged that progress would take time.

“Results won’t come overnight,” Ishiba told lawmakers during a parliamentary session. “That’s why the government must mobilize every available measure.” He outlined plans to support affected domestic industries, including financial aid for businesses and job protection programs aimed at softening the economic blow.

Ishiba called Trump’s tariff decision “extremely disappointing and regrettable,” and insisted that Japan has acted fairly in its trade relationship with the United States. He vowed to continue engaging with Washington to explain Tokyo’s position and push for a rollback of the measures.

He also expressed willingness to travel to the U.S. for face-to-face talks with Trump, but said Japan must be prepared with a comprehensive proposal. “If we are to meet, we must present a clear set of actions Japan is willing to take,” he said.

Trump’s move to impose a 25% tariff on Japanese auto imports and a 24% tariff on other goods has sparked alarm in Tokyo, where policymakers fear a serious hit to Japan’s export-dependent economy. Economists warn the tariffs could shave as much as 0.8% off national GDP growth.

Global recession worries have also rattled investors, with Japan’s Nikkei stock index plunging nearly 9% in early trading Monday—the steepest single-day drop in months.

According to Nikkei, Ishiba held an emergency meeting Sunday evening with top economic officials, including Finance Minister Katsunobu Kato. The prime minister instructed them to closely monitor financial markets and be prepared to “respond appropriately” to any signs of further instability.