China proposes ban on exports of perovskite, tandem solar manufacturing technology

China has proposed banning exports of 12 high-efficiency perovskite and tandem solar manufacturing technologies, including advanced polysilicon and crystalline-silicon cell production methods, with public consultation open until November 15, 2026. The measures target manufacturing know-how and equipment but exclude finished solar cells and modules, aiming to address national security concerns and strengthen China's control over advanced photovoltaic technology diffusion.

This Wire brief sits within Fusion42's coverage of Clean Energy.