BEIJING—China signaled it was open to trade talks with the U.S. a day after President Trump said he was willing to cut tariffs on Chinese goods, though Beijing warned it wouldn’t negotiate under continued threats from the White House.

“China’s attitude towards the tariff war launched by the U.S. is quite clear: We don’t want to fight, but we are not afraid of it. If we fight, we will fight to the end; if we talk, the door is wide open,” Foreign Ministry spokesperson Guo Jiakun said at a daily press briefing on Wednesday.