President Donald Trump on Friday said the US will impose tariffs on Samsung and other smartphone makers if their products are not made in the US, following an earlier threat targeting Apple.

“It would also be Samsung and anybody that makes that product. Otherwise, it wouldn’t be fair,” Trump said, adding that the tariffs could begin by the end of June, Reuters reported.

Previously, Trump announced a 25 percent tariff on Apple items unless iPhones sold in the United States are manufactured domestically.

Trump also proposed a 50 percent duty on all European Union goods beginning June 1, citing a lack of progress in trade negotiations and accusing the EU of unfair trade practices, according to Reuters.