President Donald Trump threatened to “impose ADDITIONAL Tariffs on China of 50%” unless Beijing withdraws a 34% retaliatory duty on US goods.

“If China does not withdraw its 34% increase above their already long term trading abuses by tomorrow, April 8th, 2025, the United States will impose ADDITIONAL Tariffs on China of 50%, effective April 9th,” Trump posted on social media.

The 50% charge would come on top of the 34% duty the president imposed on all Chinese imports — set to begin Wednesday — as well as a 20% levy that he put in place earlier tied to fentanyl trafficking, according to a White House official.

The Chinese embassy in Washington did not immediately respond to a request for comment.

Trump’s comments are the latest sign he is digging in his heels over his sweeping plan to impose duties on virtually all US trading partners. A baseline 10% tariff went into effect Saturday and higher levies on roughly 60 trading partners are due to go into place at 12:01 a.m. Wednesday.

The president also said that if the Chinese government does not pull back from its plan to retaliate against his reciprocal tariffs, “all talks with China concerning their requested meetings with us will be terminated!”

“Negotiations with other countries, which have also requested meetings, will begin taking place immediately,” he added.

The president’s tariff plans have caused US stocks to swing wildly, after global markets fell sharply. The offshore yuan fell more than 0.5% to a daily low 7.3382 per dollar after Trump issued his threat.