Trump to Slap New 10% Tariff on China from 01 September, 2019 Last Updated On August 2, 2019 12:12 AM by Neal Bhai US. President Donald Trump has announced that he will hike tariffs on some $300 billion-worth of Chinese goods to 10% starting on September. 1, 2019 escalating the trade war between the world’s two biggest economies as recent negotiations faltered. READ MORE