China has declared its readiness to “fight to the end” in an intensifying trade war with the United States, following President Donald Trump’s announcement of sweeping new tariffs and export restrictions on Chinese goods.

“If you wish to fight, we shall fight to the end; if you wish to negotiate, our door remains open.”

The comments come after Trump announced a fresh 100% tariff on all Chinese imports, retaliating against Beijing’s recent decision to restrict exports of rare earth minerals elements critical to the global tech and defense sectors. The White House described the Chinese move as “very hostile” and “surprising.”

Beijing defended the export controls, saying the restrictions are lawful and necessary for national security.

“As a responsible major power, China has consistently and resolutely safeguarded its own national security and international collective security,” the commerce ministry said.

Tensions have further intensified as both countries rolled out tit-for-tat port fees targeting each other’s maritime shipping. China began collecting levies on Tuesday for all US-owned, operated, built, or flagged vessels  with limited exemptions. The U.S. has responded in kind, citing the need to protect its shipping industry and reduce Chinese dominance in global logistics.

Adding to the economic salvo, Trump also announced upcoming export controls on “any and all critical software” beginning November 1, warning that additional restrictions may follow unless China reverses its rare earth policy.

The ongoing dispute has rattled global markets and cast doubt on a potential face-to-face meeting between Trump and Chinese President Xi Jinping, which had been floated for the sidelines of the upcoming summit in South Korea.