President Donald Trump said Friday he would impose a 100% tariff on China “over and above any Tariff they are currently paying” effective November 1 – massively escalating his trade war amid a heated dispute over export controls on rare earths.

In a Truth Social post, Trump wrote that China had “taken an extraordinarily aggressive position on Trade in sending an extremely hostile letter to the World, stating that they were going to, effective November 1st, 2025, impose large scale Export Controls on virtually every product they make, and some not even made by them.”

“This affects ALL Countries, without exception, and was obviously a plan devised by them years ago,” he wrote. “It is absolutely unheard of in International Trade, and a moral disgrace in dealing with other Nations.”

Trump said he would impose the new tariff November 1 “or sooner, depending on any further actions or changes taken by China.”

Earlier in the day, Trump had blasted Chinese leader Xi Jinping on social media over China’s ramped-up efforts to impose export controls on critical rare earths, threatening economic retaliation and saying he no longer sees any reason to meet with Xi during a scheduled visit to the region later this month. At the time, Trump also threatened economic penalties against China, warning, “Dependent on what China says about the hostile ‘order’ that they have just put out, I will be forced, as President of the United States of America, to financially counter their move.”

“For every Element that they have been able to monopolize, we have two,” he added.

Beijing ramped up sweeping restrictions on rare earth exports on Thursday, expanding the list of minerals under control and extending controls targeting their production technologies and their overseas use, including for military and semiconductor applications. The actions targeted an acute vulnerability for the US – one that has driven a significant Trump administration effort in recent months to identify, and rapidly scale up, mining and production capacity. And it immediately set off alarm bells inside the Trump administration, according to several administration officials.