US solar stocks and related exchange-traded funds rise in premarket trading after President Donald Trump extends China-related import tariffs to polysilicon products. CNBC reports that the move follows Trump’s announcement of new restrictions covering polysilicon, a key input used to manufacture solar panels. NDTV adds that the tariff rate is 15% on imported polysilicon products from China. Market reaction is reflected in gains for major publicly traded solar companies, including First Solar, which rises about 8%, and SolarEdge Technologies, which increases around 2.4%, according to NDTV. The coverage emphasizes investor response to the tariff expansion, which could affect the cost and supply dynamics for solar manufacturing inputs. Both outlets describe the same core event—tariffs extended to polysilicon—and the resulting upward movement in solar stocks at the start of trading.