U.S. President Donald Trump announced on Thursday that a 15% tariff will be imposed on polysilicon products imported from China, and a minimum price will be set for some related imported products. This move aims to protect the U.S. domestic solar supply chain from Chinese competition and to counter China's rise in artificial intelligence and energy. Following this news, U.S. solar stocks generally rose in pre-market trading on Friday, with First Solar's stock price increasing by 8%, Solaredge Technologies by 2.4%, and Invesco Solar ETF by 1.4%.