Trump administration announces tariffs and price floors on polysilicon products

The Trump administration has announced new trade rules on polysilicon, a material used to make solar panels and computer chips. The rules took effect on Thursday in early August 2026. Imports of polysilicon and related products will face a 15% tariff. The government will also set minimum prices on items like wafers, cells, and solar modules. This means importers cannot sell these goods below a fixed price. The policy uses both tariffs and price floors together, which is an unusual approach. Officials say the goal is to protect American polysilicon factories from cheaper Chinese products. Polysilicon is important because it is a key raw material in the chip supply chain. Four sources familiar with the matter confirmed the announcement, which Reuters first reported.