The Trump administration slapped tariffs on roughly $110 billion in Chinese imports on Sept. 1, marking the latest escalation in a trade war that’s inflicting damage across the world economy. China retaliated.

The Trump administration is rushing to finalize a list of $300 billion in Chinese imports it plans to hit with tariffs in a few weeks’ time, as U.S. companies make a last-ditch appeal to be spared from the latest round of duties.