President Donald Trump continued his trade fight with China on Friday, Aug. 23, raising retaliatory tariffs and ordering American companies to consider alternatives to doing business there.

Trump said he would be raising planned tariffs on $300 billion in Chinese goods from 10% to 15%. The Office of the U.S. Trade Representative also said existing tariffs on another $250 billion in Chinese imports would go from 25% to 30% on Oct. 1 after receiving feedback from the public.

“Starting on October 1st, the 250 BILLION DOLLARS of goods and products from China, currently being taxed at 25%, will be taxed at 30%,” Trump tweeted. “Additionally, the remaining 300 BILLION DOLLARS of goods and products from China, that was being taxed from September 1st at 10%, will now be taxed at 15%.”

Trump’s move came after Beijing announced Friday morning that it had raised taxes on $75 billion of U.S. goods. The Chinese said tariffs of 25% and 5% would be imposed on U.S.-made autos and auto parts on Dec. 15.

Chart shows tariffs imposed on China by the U.S. since July 2018.

The president emphasized, “Our Country has been losing HUNDREDS OF BILLIONS OF DOLLARS a year to China, with no end in sight,” and “I can no longer allow this to happen!”

Earlier Friday, the president said he “hereby ordered” U.S. companies to seek alternatives to doing business in China.

“Our great American companies are hereby ordered to immediately start looking for an alternative to China, including bringing … your companies HOME and making your products in the USA,” Trump tweeted.

The president stressed for the first time, “We (the United States) don’t need China and, frankly, would be far better off without them.”

The president blamed China and other countries for bringing fentanyl to the United States, killing 100,000 Americans a year, saying he is “ordering all carriers, including Fed Ex, Amazon, UPS and the Post Office, to SEARCH FOR & REFUSE, all deliveries of Fentanyl from China, (or anywhere else!)”

White House trade adviser Peter Navarro asserted, “President Trump’s decision on China today wasn’t political, it was transcendent. He’s protecting America’s working class that’s been attacked by China’s economic policies for the last 20 years.”

Washington accuses China of using predatory tactics—including outright theft of U.S. trade secrets—in an aggressive drive to turn itself into a world leader in cutting-edge technologies such as artificial intelligence and electric cars.

Twelve rounds of talks have failed to break the impasse, though more negotiations are expected next month.

The ongoing trade war is having an adverse impact on China. The latest data from its statistics bureau shows industrial production in China—an important indicator for the country’s economy—grew 4.8% on-year in July, the slowest in 17 years.

Includes reporting from the Associated Press