https://techcrunch.com/2019/08/23/trump-adds-tariffs-to-550-billion-of-chinese-imports-in-trade-war-reprisal/

President Trump announced Friday on Twitter that tariffs on Chinese imports will increase 5 percentage points in a tit-for-tat response to China’s own plans to place new duties on U.S. goods.

About $250 billion of goods produced by China and imported into the U.S. already have a 25% tariff. This newest increase will push tariffs to 30% beginning October 1, 2019. Trump also increased “List 4” tariffs from 10% to 15%. The List 4 tariff, which affects the remaining $300 billion of Chinese imports, will go into effect September 1 and December 15.