US President Donald Trump’s administration has exempted smartphones, computers and several other electronic devices from a sweeping set of reciprocal tariffs, offering relief to South Korea’s Samsung Electronics Co., Apple Inc. and other global tech firms.

The US Customs and Border Protection (CBP) issued a notice Saturday (US time) announcing the exemption of select electronics, such as smartphones, laptops, personal computers (PCs), servers and semiconductor equipment, from the reciprocal tariffs, including the 125 percent levies imposed on Chinese imports, according to Yonhap news agency…