Shares of Chinese inverter manufacturer Sungrow Power Supply fall sharply after a report says U.S. regulators are drafting a possible ban on certain inverter imports for national security reasons. According to the outlets, the announcement drives a steep decline of about 20% in the company’s stock on Wednesday. The reports cite concerns from U.S. authorities and describe the action as a potential ban, indicating the measure is still under consideration rather than finalized. Sungrow, which supplies solar inverter technology used in photovoltaic systems, is therefore facing increased regulatory risk tied to U.S.-China technology scrutiny. The coverage focuses on market reaction to the news and the possibility that products could be restricted in the U.S. pending further regulatory steps. Neither source provides details on the scope of the proposed measure, timelines, or whether any exemptions are being discussed.