U.S. President Donald Trump on Friday said his administration would not grant Apple Inc. any relief for tariffs on parts made in China for its Mac Pro computer and later added he thought the firm would build a plant in Texas.

"Apple will not be given Tariff waiver, or relief, for Mac Pro parts that are made in China. Make them in the USA, no Tariffs!" Trump tweeted.

On July 18, Apple asked the U.S. Trade Representative's office to waive 25% tariffs on 15 parts, including ones for the Mac Pro desktop computer. The public comment period for those requests closes on Aug. 1.